Originally posted by: Muse
As far as the deltaV thing, well, I forgot that the transformers (or whatever those new type wall warts are) aren't the only part of the charging system. They plug into a base unit, and that could have circuitry in it, some components, so maybe deltaV is supported in there. I could call Uniden's 800 number and ask a tech.
Good luck getting a "tech" who really knows anything about the product.
Concerning memory issues with NiCad batteries - I remember reading that some of that idea came up as a result of Hubble. It would discharge and charge to almost exactly the same levels, completing a cycle about every 90 minutes. With most consumer devices, you'll probably discharge to a different level each time.
Deep discharge though - definitely a bad thing.
If you're putting together a Li-ion pack,
these controllers look like they'd be very nice - each cell gets individual attention from the charger so that they all have a reasonably equal state of charge.
Originally posted by: Yzzim
Even NiCd?? I thought they had the memory effect.
I use my cordless drill a lot and always wait until there is zero charge left before I plug it in. The battery has lasted me 3 years. Apparently I'm doing it wrong?
If you'd pop that battery pack open, the cells might have started to grow crystals on their ends due to leakage. I had a drill like that - the batteries were
old, at least 10 years old. But the drill still worked.
The life was adequate, but not great. I decided to replace the NiCad cells with some NiMHs; the NiCads were getting kind of furry on their positive terminals.
I'd planned to replace the second battery pack's guts with li-ion cells which I'd salvaged from some laptop battery packs, but never really got around to it. (Yes, I have a protection circuit, and a charger that can charge li-ion packs.)