dogman wrote:Reading back, 5s 16.5v lipo makes no sense. 5s is 18.5. Typo?
wesnewell wrote:Well, I've never used lifep04 , but everything I've read says fully charged is about 3.65v per cell. Checking my charger set for lifep04 shows it's set to 3.60v per cell as default. Pack voltage dropping from 18 down to 16.75 doesn't sound normal to me, but wait for some info from people that actually use it. Checking this is interesting.
http://en.wikipedia.org/wiki/Lithium_ir ... ifications
Cell voltage = min. discharge voltage = 2.8 V. Working voltage = 3.0 V – 3.3 V. Max. charge voltage = 3.6 V.
Gregory wrote:What sort of amps are you pulling during the ride? If you're trying for 10C on those cells, they won't like it. They aren't reported to be as strong as the label may suggest.
Gregory wrote: Also people talk about breaking in LiFePO4 packs for the first few uses. Then they gain capacity and stay better balalced. So it may perk up over the next few cycles...
NeilP wrote:OK, tell us this..
What is your controller
What is the shunt value set in your CA.
NeilP wrote:One other bit of info that may be of help..how many FET controller? 12? 18?
if it was 18 FET I would guess at 1.00 as a better guesstimate for a shunt setting..each shunt being about 4mOhm
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