hi Vasile, > Hi Stef, > >I'm a little agree with this "no name" piclister. Without any question >dV/dT it's a common used methode. However there are situation when the >small dV can't be sensed well. Even the battery is complete charged, >the charger seen as is not, hence the situation of overcharging. maybe >you saw this at least once. > > No I've never seen this, when a battery is full, and I put it in the charger again, it stops within a few seconds. >Also, maybe you've noticed, the quick charger is very good for >batteries which are also fast discharged. If you're trying to use a 10 >minutes charged 1Ah battery with 100mA/10 hours will never works in >the last 3...4 hours. But if you'll "regenerate' the battery with very >slow charge-discharge 2...3 cycles it looks like the battery is ok >(which is not, only for the first maybe second next discharging >cycle). > >Talking from the chemistry inside the battery , there is no much >difference between fast reflex charging and standard low time >charge-discharge. The only benefit of a reflex charge I saw, it's the >"feeling" of regeneration (which is just an impression, if it's >followed by complete measurements). > No it's not a feeling (at least for NiCd), I really measured capacities after loading !! And besides Reflex charging, overcomes the memory effect and can even repair totally damaged batteries ! > But I didn't experiment with >reflex charger too much. Fortunately I don't want to repeat this >experience on more than 100 batteries and 5 different producers. > > I don't want either, but with those new NiMh batteries, I hate that discharge when they are lying around. So I really want to find a good answer to that, and unfortunatly I didn't find the answer yet. So if someone knows how to prevent discharging (not the refrigirator solution), I would be much obliged ;-) cheers, Stef > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist