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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#81
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AA battary capacity, Ah (?)
In rec.crafts.metalworking CMF wrote:
Please kind sir, can you explain what you mean by C/10 and C/20, etc? In terms my simpleton mind can understand? Thanks. i don't speak for Ted, but i had that question a few days ago. from my google results it seems to be the ratio of the battery capacity to the recharge rate based on 1hr=max rate=batt.capacity. so 1/10C would be a charge rate=1/10 of batt.cap/hour. a totally amateur opinion. --Loren ps. if you don't use google, you miss a _lot_. Maury "Ted Edwards" wrote in message ... lcoe wrote: and that comports with yet _another_ mystery site that said a NiMH can take 1/10C overcharge indefinitely (or it may have been 1/18C), which shortens the life of Nicads. C/10 for continuous charging of NiMH is still controversial. Some say C/20 and some would like to see continuous float as low as C/60. The jury is still out on the long term stuff since the cells haven't been around all that long and there has been considerable advance in the technology over the last few years. Ted |
#82
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AA battary capacity, Ah (?)
CMF wrote:
Please kind sir, can you explain what you mean by C/10 and C/20, etc? In terms my simpleton mind can understand? Thanks. When discussing charging and discharging currents of various cells/batteries, the effect of these on cell performance obviously depend on cell current - bigger cells can handle more current. In an effort to come up with a more usefull description, we usualy reference these to the cell capacity. So C/10 means one tenth of the cell capacity. e.g. for a 1800milliamp-hour cell, C/10 is 180milliamps. Hope this helps. Ted |
#83
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AA battary capacity, Ah (?)
lcoe wrote:
ps. if you don't use google, you miss a _lot_. Sometimes Google doesn't cut it. Then I use http://www.Dogpile.com This is a meta search which uses Google and a number of other search engines. Ted |
#84
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AA battary capacity, Ah (?)
In dfw.forsale Ted Edwards wrote:
lcoe wrote: ps. if you don't use google, you miss a _lot_. Sometimes Google doesn't cut it. Then I use http://www.Dogpile.com This is a meta search which uses Google and a number of other search engines. Ted just tried it, and yes, it looks promising. Regards, --Loren |
#85
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AA battary capacity, Ah (?)
On Mon, 21 Jul 2003 14:41:32 GMT, "Mac McKinzie"
wrote something .......and in reply I say!: Obviously we are charging and discharging at just the right rates, and not suffering from any memory effect .... if only the darned batteries had the lifetime of this thread. G ************************************************** **************************************** Huh! Old age!. You may hate it, but let me tell you, you can't get by for long without it! Nick White --- HEAD:Hertz Music Please remove ns from my header address to reply via email !! ") _/ ) ( ) _//- \__/ |
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