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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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#1
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Powergenix battery use
I've got a few Powergenix, and the charger to go with. Seem to be sold only
in AA cells. But, that's fine. I use a lot of AA cells. Problem is, that once in a while a device (digicam, flash light or PC speakers) I'll notice the device is going weak. Turns out that one cell is dead, the other 1 or 3 are fine. The company did write back, if the cell is less than 1.1 volts, it's probably permanantly damaged. Yesterday, I opened a pack of 8 cells that I'd bought off Ebay, maybe a year ago. Three of the cells were DOA. Perhaps those are not going to be very good as batteries? Maybe they don't keep a charge for a year? What's anyone else's experience? Christopher A. Young Learn more about Jesus www.lds.org .. |
#2
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Powergenix battery use
Stormin Mormon wrote:
I've got a few Powergenix, and the charger to go with. Seem to be sold only in AA cells. But, that's fine. I use a lot of AA cells. Problem is, that once in a while a device (digicam, flash light or PC speakers) I'll notice the device is going weak. Turns out that one cell is dead, the other 1 or 3 are fine. The company did write back, if the cell is less than 1.1 volts, it's probably permanantly damaged. Yesterday, I opened a pack of 8 cells that I'd bought off Ebay, maybe a year ago. Three of the cells were DOA. Perhaps those are not going to be very good as batteries? Maybe they don't keep a charge for a year? What's anyone else's experience? Christopher A. Young Learn more about Jesus www.lds.org . I bought a set at BigLots. One wouldn't take a charge, the other three were iffy. I think there's a reason they never took off in the market. |
#3
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Powergenix battery use
On Jan 6, 12:56*pm, "Stormin Mormon"
wrote: I've got a few Powergenix, and the charger to go with. Seem to be sold only in AA cells. But, that's fine. I use a lot of AA cells. Problem is, that once in a while a device (digicam, flash light or PC speakers) I'll notice the device is going weak. Turns out that one cell is dead, the other 1 or 3 are fine. The company did write back, if the cell is less than 1.1 volts, it's probably permanantly damaged. Yesterday, I opened a pack of 8 cells that I'd bought off Ebay, maybe a year ago. Three of the cells were DOA. Perhaps those are *not going to be very good as batteries? Maybe they don't keep a charge for a year? What's anyone else's experience? Christopher A. Young Learn more about Jesus *www.lds.org . I've not seen the brand here, myself. I looked at the company's website and it looks like they're some sort of rechargeable nickel- zinc battery. Folks have been working at this for 50 years or better and they always run up against a physical problem, zinc electrodes want to regrow with nasty needles on the recharge cycle, these penetrate whatever they're using for a cell divider and short out the cells eventually. Doesn't matter what mouse-milk they add or what they change geometry on, shorts are a fact of life with zinc rechargeables. Too bad, theoretically, they've got a pretty high energy density for secondary cells as well as being nonexotic ingredients. I just wonder if the needles could be zapped with a capacitor, ala nicads, for a little extra life. I would do this with a shield between me and the cell, though. Stan |
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