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#1
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Nickel cadmium batteries & RoHS.
Everyone seems to have stopped selling most types of NiCD.
I thought like lead acid batteries they were exempt. |
#2
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Nickel cadmium batteries & RoHS.
"Ian Field" wrote in message ... Everyone seems to have stopped selling most types of NiCD. I thought like lead acid batteries they were exempt. RoHS never covered batteries. http://en.wikipedia.org/wiki/Battery_Directive My guess is that the eneloop batteries are far superior to the NICD types that its not economical to produce them any more. I'm sure the eneloops will work as replacements. Cheers |
#3
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Nickel cadmium batteries & RoHS.
On Fri, 22 Apr 2011 16:48:18 -0400, "Martin Riddle" wrote:
"Ian Field" wrote in message ... Everyone seems to have stopped selling most types of NiCD. I thought like lead acid batteries they were exempt. RoHS never covered batteries. http://en.wikipedia.org/wiki/Battery_Directive My guess is that the eneloop batteries are far superior to the NICD types that its not economical to produce them any more. I'm sure the eneloops will work as replacements. Not if the charging circuit runs a 5% overcharge that NiCds tolerated, but the newer NiMHs don't. Grant. Cheers |
#4
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Nickel cadmium batteries & RoHS.
"Martin Riddle" wrote in message ... "Ian Field" wrote in message ... Everyone seems to have stopped selling most types of NiCD. I thought like lead acid batteries they were exempt. RoHS never covered batteries. http://en.wikipedia.org/wiki/Battery_Directive My guess is that the eneloop batteries are far superior to the NICD types that its not economical to produce them any more. I'm sure the eneloops will work as replacements. There are applications where NiMh won't work. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. |
#5
Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
Ian Field wrote:
There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Thanks, Rich |
#6
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Nickel cadmium batteries & RoHS.
"Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. |
#7
Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
"Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product..... with out batteries Cheers |
#8
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Nickel cadmium batteries & RoHS.
flipper wrote:
On Sat, 23 Apr 2011 12:57:15 -0700, Rich Grise wrote: Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Thanks, Rich I guess you won't be using a cell phone, or just about any other rechargeable device, then because they all use NiMH these days. Try the Energizer Lithium 1.5V batteries; Mouser 525-L91BP-2 - size AA at about $7 per pair (cheaper than in the store). 2900maH at 1.5V, no muss no cuss. |
#9
Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
On Sat, 23 Apr 2011 13:24:54 +0100, "Ian Field"
wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... Everyone seems to have stopped selling most types of NiCD. I thought like lead acid batteries they were exempt. RoHS never covered batteries. http://en.wikipedia.org/wiki/Battery_Directive My guess is that the eneloop batteries are far superior to the NICD types that its not economical to produce them any more. I'm sure the eneloops will work as replacements. There are applications where NiMh won't work. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. Suggests that they are being operated at a 2 or 3C discharge rate. NiMhs normally run without exotherm at 1C. How were you bench-testing? RL |
#10
Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
"legg" wrote in message ... On Sat, 23 Apr 2011 13:24:54 +0100, "Ian Field" wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... Everyone seems to have stopped selling most types of NiCD. I thought like lead acid batteries they were exempt. RoHS never covered batteries. http://en.wikipedia.org/wiki/Battery_Directive My guess is that the eneloop batteries are far superior to the NICD types that its not economical to produce them any more. I'm sure the eneloops will work as replacements. There are applications where NiMh won't work. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. Suggests that they are being operated at a 2 or 3C discharge rate. NiMhs normally run without exotherm at 1C. How were you bench-testing? Bench testing was just running with the foil & cutter fitted but not using it to shave with. I put a drop of Slick50 on the cutter to reduce wear, the viscosity produces slightly more resistance than running it dry. |
#11
Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
"Martin Riddle" wrote in message ... "Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product..... with out batteries Apparently it was German - so much for the famous German engineering eh?! Some parts of the shaver were glued together so I wrecked it getting the batteries out, so I decided "free NiMh AAA charger" with a 2x AAA holder soldered to the pcb the batteries I tried charging got hot - about 2.11V each! It looks like a buck controller with a PNP pass transistor (most likely S/C) driven by some obscure microcontroller. |
#12
Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
On Sat, 23 Apr 2011 21:49:53 +0100, "Ian Field"
wrote: "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. I installed a mirror in the shower, and use those plastic throw-away Bic razors. Warm, cozy, reliable way to shave. Another tip: shave less often! John |
#13
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Nickel cadmium batteries & RoHS.
John Larkin wrote:
On Sat, 23 Apr 2011 21:49:53 +0100, "Ian Field" "Rich Grise" wrote in message Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. I installed a mirror in the shower, and use those plastic throw-away Bic razors. Warm, cozy, reliable way to shave. Another tip: shave less often! I shaved a couple of years ago, but admittedly, I've trimmed a couple of times since then, with good ol' reliable alkalines in my trimmer. Still going after over two years! :-) (after shaving, I saw my dual dewlaps and my jowls and decided to let my face hair grow back.) Cheers! Rich |
#14
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Nickel cadmium batteries & RoHS.
"John Larkin" wrote in message news On Sat, 23 Apr 2011 21:49:53 +0100, "Ian Field" wrote: "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. I installed a mirror in the shower, and use those plastic throw-away Bic razors. Warm, cozy, reliable way to shave. I've got a Gillette M3power for special occasions, there's also 2 other types of (no battery) gillette shavers in the old mug with no handle when I CBA buying blade cartridges for them. If I get really desperate I've got an old Philips rotary wired to a mini non standard XT PSU, when I let my hair grow long it ends up in the cutters and tangled round the drive pins, so today I did a DIY skinhead job. |
#15
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Nickel cadmium batteries & RoHS.
flipper wrote:
I guess you won't be using a cell phone, or just about any other rechargeable device, then because they all use NiMH these days. My current phone, a Samsung TracFone(r), uses a Samsung AB463446BA 800 mAh battery, 17.1G weight[1], 1.94" L X 1.34" W x .19" T; FWIW, I've always trusted Korean stuff. I believe it's probably a more sane technology cell than NiMH, but I'm not about to cut it up and try to find out. So far, it's lasted longer than any NiMH I've ever wasted my money on. Thanks, Rich [1] sorry for using grams weight, but I think that's an accepted convention. |
#16
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Nickel cadmium batteries & RoHS.
Robert Baer wrote:
flipper wrote: On Sat, 23 Apr 2011 12:57:15 -0700, Rich Grise Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. I guess you won't be using a cell phone, or just about any other rechargeable device, then because they all use NiMH these days. Try the Energizer Lithium 1.5V batteries; Mouser 525-L91BP-2 - size AA at about $7 per pair (cheaper than in the store). 2900maH at 1.5V, no muss no cuss. Yikes! The local Rite-Aid(r) has store-brand alkalines for like five bucks a two-pack, and they outlast the "copper-top" ones by almost 2 to 1. Cheers! Rich |
#17
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Nickel cadmium batteries & RoHS.
"Rich Grise" wrote in message ... Robert Baer wrote: flipper wrote: On Sat, 23 Apr 2011 12:57:15 -0700, Rich Grise Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. I guess you won't be using a cell phone, or just about any other rechargeable device, then because they all use NiMH these days. Try the Energizer Lithium 1.5V batteries; Mouser 525-L91BP-2 - size AA at about $7 per pair (cheaper than in the store). 2900maH at 1.5V, no muss no cuss. Yikes! The local Rite-Aid(r) has store-brand alkalines for like five bucks a two-pack, and they outlast the "copper-top" ones by almost 2 to 1. Cheers! Rich That is possible, The Copper tops don't fair too well at higher loads. http://www.powerstream.com/AA-tests.htm Cheers |
#18
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Nickel cadmium batteries & RoHS.
Rich Grise wrote:
Robert Baer wrote: flipper wrote: On Sat, 23 Apr 2011 12:57:15 -0700, Rich Grise Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. I guess you won't be using a cell phone, or just about any other rechargeable device, then because they all use NiMH these days. Try the Energizer Lithium 1.5V batteries; Mouser 525-L91BP-2 - size AA at about $7 per pair (cheaper than in the store). 2900maH at 1.5V, no muss no cuss. Yikes! The local Rite-Aid(r) has store-brand alkalines for like five bucks a two-pack, and they outlast the "copper-top" ones by almost 2 to 1. Cheers! Rich Well, these lithiums seem to last forever, especially for my camera where it "demands" full a 3V for the flash. I am not a fan of battery hoppers... |
#19
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Nickel cadmium batteries & RoHS.
"Martin Riddle" wrote in message ... "Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product Are Remington shavers American? |
#20
Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
Ian Field wrote:
"Martin Riddle" wrote in message ... "Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product Are Remington shavers American? The ONLY American shavers are the Americans that are shaving... |
#21
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Nickel cadmium batteries & RoHS.
"Robert Baer" wrote in message net... Ian Field wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product Are Remington shavers American? The ONLY American shavers are the Americans that are shaving... Well it does have "made in China" stamped on the inside of the flip out trimmer, but I thought Remington was an American firm. |
#22
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Nickel cadmium batteries & RoHS.
On Wed, 27 Apr 2011 22:59:55 -0700, Robert Baer wrote:
Ian Field wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product Are Remington shavers American? The ONLY American shavers are the Americans that are shaving... That's true, it appears the only thing made in the U.S. now is the labels so they can say made in the U.S. ***************** Thank You A true compassionate liberal Anarchist To reply to this email please remove the AT after the kgs in the reply to address as shown above. |
#23
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Nickel cadmium batteries & RoHS.
On Sun, 24 Apr 2011 16:48:06 +0100, "Ian Field"
wrote: "legg" wrote in message .. . On Sat, 23 Apr 2011 13:24:54 +0100, "Ian Field" wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... Everyone seems to have stopped selling most types of NiCD. I thought like lead acid batteries they were exempt. RoHS never covered batteries. http://en.wikipedia.org/wiki/Battery_Directive My guess is that the eneloop batteries are far superior to the NICD types that its not economical to produce them any more. I'm sure the eneloops will work as replacements. There are applications where NiMh won't work. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. Suggests that they are being operated at a 2 or 3C discharge rate. NiMhs normally run without exotherm at 1C. How were you bench-testing? Bench testing was just running with the foil & cutter fitted but not using it to shave with. I put a drop of Slick50 on the cutter to reduce wear, the viscosity produces slightly more resistance than running it dry. Would be usefull noting the current drain. NiMh usually get hotter in charging, rather than discharge, in normal service. There are NiMh varieties constructed specifically for higher discharge rates - not related to AH capacity. Could be a sales gimmick, but it would obviously have specific applications, as you have noted. RL |
#24
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Nickel cadmium batteries & RoHS.
Ian Field wrote:
"Robert Baer" wrote in message net... Ian Field wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product Are Remington shavers American? The ONLY American shavers are the Americans that are shaving... Well it does have "made in China" stamped on the inside of the flip out trimmer, but I thought Remington was an American firm. Yes, it may well be an American firm, but as the saying goes, what does that have to do with the price of rice in China? |
#25
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Nickel cadmium batteries & RoHS.
"Robert Baer" wrote in message net... Ian Field wrote: "Robert Baer" wrote in message net... Ian Field wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... "Rich Grise" wrote in message ... Ian Field wrote: There are applications where NiMh won't work. Like, any. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. FWIW, I'll never ever waste my money on NiMH's again. Oh, at first, they're the bee's knees, but after only a few months of use, their shelf life and usable charge deteriorate to a matter of a few seconds. Having found a couple of good NiCds for the shaver, the foil split. The spare shaver I bought and never used for about 3 years uses NiMh and didn't hold a charge the next time I plugged the charger in the batteries got hot. You need to buy an American product Are Remington shavers American? The ONLY American shavers are the Americans that are shaving... Well it does have "made in China" stamped on the inside of the flip out trimmer, but I thought Remington was an American firm. Yes, it may well be an American firm, but as the saying goes, what does that have to do with the price of rice in China? The build quality is not as good as usual from China - the edges of the foil strips are crumpled where they attach to the shaving head. |
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Posted to alt.binaries.schematics.electronic
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Nickel cadmium batteries & RoHS.
"legg" wrote in message ... On Sun, 24 Apr 2011 16:48:06 +0100, "Ian Field" wrote: "legg" wrote in message . .. On Sat, 23 Apr 2011 13:24:54 +0100, "Ian Field" wrote: "Martin Riddle" wrote in message ... "Ian Field" wrote in message ... Everyone seems to have stopped selling most types of NiCD. I thought like lead acid batteries they were exempt. RoHS never covered batteries. http://en.wikipedia.org/wiki/Battery_Directive My guess is that the eneloop batteries are far superior to the NICD types that its not economical to produce them any more. I'm sure the eneloops will work as replacements. There are applications where NiMh won't work. The NiCds in my shaver gave up and I tried replacing them with NiMh cells, just running on the bench the charge lasted about 2.5x what the user manual said for the original batteries - but under load of actually shaving the batteries got pretty warm, indicating that not all the rated 2400mAh was ending up in the motor. I was getting about 5 shaves per charge with NiMh - new NiCd give somewhere between 15 & 20 shaves. Suggests that they are being operated at a 2 or 3C discharge rate. NiMhs normally run without exotherm at 1C. How were you bench-testing? Bench testing was just running with the foil & cutter fitted but not using it to shave with. I put a drop of Slick50 on the cutter to reduce wear, the viscosity produces slightly more resistance than running it dry. Would be usefull noting the current drain. NiMh usually get hotter in charging, rather than discharge, in normal service. There are NiMh varieties constructed specifically for higher discharge rates - not related to AH capacity. Could be a sales gimmick, but it would obviously have specific applications, as you have noted. Freecycle message board saved the day - its a recycling group you can post an offered for things you want rid of or you can post a wanted, I posted a wanted for a shaver expecting to get something that needed repair, instead I got an almost new Braun 1775 (uses NiCd as standard). Left the cutter head buzzing away in the ultrasonic cleaner all day while the shaver charged, left the parts to dry overnight while the shaver charged some more and by morning it was all systems go. |
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