omG, that's a DETAILED battery description I'm not an expert in any way, so just a brief description
but I definitely can't recall their name...
I saw some battiers in our LIDL today.... but I wasn't sure if they're good or not that good. Now I saw this topic and recalled them, but I definitely can't recall their name... it was sth wtih FIRE in them, but not the UltraFire I see here. What I remember was that they were 1.2V, could be recharged 1000 times and lost 20% of their charge for one year.Any idea if it's worth purchasing them?
On the right is a Pila IBC for my 18650's. I only use AW cells. The Pila is considered to be one of the best chargers on the market for lithium ion cells.
The WF139 I have has been the only exception so far.
Quote from: Heinz Doofenshmirtz on July 29, 2012, 02:19:31 AM The WF139 I have has been the only exception so far. Just an accidental observation. Though the wf-139 will light green when fully charged, it will continue charging, slowly, after that.Mine stops at 4.15V but a pair of protected Sanyos stayed in overnight and reached 4.25V.Not too bad, but something to know.
Quote from: dks on July 31, 2012, 01:21:13 PMQuote from: Heinz Doofenshmirtz on July 29, 2012, 02:19:31 AM The WF139 I have has been the only exception so far. Just an accidental observation. Though the wf-139 will light green when fully charged, it will continue charging, slowly, after that.Mine stops at 4.15V but a pair of protected Sanyos stayed in overnight and reached 4.25V.Not too bad, but something to know.My understanding (and I could be mistaken of course) is that the WF139 does continue to trickle charge the cells it has in it after they've reached a certain voltage level, but I don't think it's genuine 'protection'... That's one of the reasons I prefer protected cells. I'm also not sure if the protection circuits in the Sanyos are different than what's in the AW cells. I suspect their different, because I recall reading on CPF that the AW cells use the Panasonic core, and have a custom PCB for the protection circuit that's in them. The newer ones also have a vent mechanism integrated into them so that if they do overcharge, they expel the gas produced instead of blow up. There are also two different versions of the WF139, an older model with a circuit in it that isn't as good as the newer version. The newer version was specifically updated because it was found that the old circuit would overcharge li-ion cells.
"your batteries" you say Can you guess my preference for flashlights and a specific battery manufacturer? (Image removed from quote.)