HV Battery Self-discharge Rate
#11
08-20-2010, 05:32 PM
Join Date: Mar 2005
Location: All over the Central U.S.
Posts: 3,616
Re: HV Battery Self-discharge Rate
So, if they aren't any good why are they switching to Li-Ion? They are way easier to charge. I have a 1600mAH 17670 Li-Ion cell in a SureFire U2 Ultra flashlight for over two years without recharging and it still works. I have Li-Ion cells in other custom made LED flashlights with the same results.
My hybrid car does that with the current NiMH.
I'm just saying NiMH - Proven to work
Li based - Unproven
#12
08-20-2010, 05:43 PM
Re: HV Battery Self-discharge Rate
SureFires are great, aren't they? Even the protected cells have a discharge rate of <3% per month, so after 2 years they should still have some life left. Unprotected cells are <<1% but of course they can explode on you if you aren't careful during charging, and are too easy to damage with over-discharging...
I have a SurFire KL4, using two CR123As but the rest are all McGizmo PRs, PR-Ts, Aleph1, 2 or 3s with two stage caps. I forgot most of the terms like BadBoys, etc. I was a 5W LED fan and they work good as hand warmers too!
I have a MagLite converted with a 5W LED. Take a dead cells out of a MagLite, drop them in and when it starts to strobe those suckers are bone dead! Used it when I was working and had to get a lense diffuser in order to use it for the close-up mechanical they I did.
#13
08-20-2010, 05:51 PM
Re: HV Battery Self-discharge Rate
Do you actually think that these Li-Ion packs aren't being cycle tested as the Ni-MH packs were?
#14
09-12-2010, 11:29 PM
Join Date: Mar 2005
Location: All over the Central U.S.
Posts: 3,616
Re: HV Battery Self-discharge Rate
Parked for 20 days.
The SOC reported, displayed over the CAN bus, dropped 6.2% in 20 days.
Parked at 52.7%.
At first key turn to "on" without starting: 46.5%.
Just another data point.
Build date was in 12/2004 and I have over 117,000 miles.
The SOC reported, displayed over the CAN bus, dropped 6.2% in 20 days.
Parked at 52.7%.
At first key turn to "on" without starting: 46.5%.
Just another data point.
Build date was in 12/2004 and I have over 117,000 miles.
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