View Single Post
Old 02-15-2013, 04:44 PM   #9
Beastly Adventurer
Joined: Sep 2011
Location: Tulsa, Oklahoma
Oddometer: 6,435
Originally Posted by Deepc View Post
05.5 950A won't start. I just installed the $$$ Shorai 9 months ago. No problems until now. I have a shcumacher charger. Any charging tips?
which Shorai do you have installed in 950?

the short answer is yes you can charge Shorai batteries with most any automotive charger without conditioning mode. which will go up to about 15.5v, would not be good for LiFePO4 batteries.

LiFePO4 batteries for motorcycle are fully charged at 14.6v .. your Schumacher charger should charge at peak 14.3v or so... so long as your auto charger stays below 14.6v, you should be fine. bulk part of charge is not critical .. As your LiFePO4 battery charges up, current will naturally slow down. using a dumb charger without float mode requires you monitor charge levels to prevent overcharge.

in other words, measure your auto charger to make sure peak voltage doesn't exceed 14.6v and don't leave your charger attached longer than overnight.

it's my experience some Shorai have internal BMS, some don't. all have external balance ports ... Shorai batteries should be balance charged from time to time with a charger with balance leads.

see my LiFePO4 battery testing thread for LOTS more details .. link in sig..

Shorai LFX 21 being balanced charged with Powerlab 8 (note balance cables in center)

_cy_ screwed with this post 02-15-2013 at 05:03 PM
_cy_ is online now   Reply With Quote