o00scorpion00o
100 kW
This guy is a bit of an ass but anyway I would greatly appreciate if someone for the sake of proper information could tell me if this guy is the battery expert he claims to be ?
Look at post 22 here, then read on. You really need to see the original post and read on.
http://www.boards.ie/vbulletin/showthread.php?t=2057511837&page=2
Quote
low temperatures i.e. above about 5% but less the 15% have no effect on Li charge rates, the graph isn't linear. in fact it can improve charge rates as the heating generated near the end of the charge taper phase can be carried away by the lower ambient temperature
where the electrolyte is in danger of freezing and even at slighter higher temperature, the mobility of Li ions is degraded only slightly, at electrolyte freezing then a careful low C " pre-qualifying charge" has to be applied , extending charge times significantly ( or the battery externally warmed)End Quote
Look at post 22 here, then read on. You really need to see the original post and read on.
http://www.boards.ie/vbulletin/showthread.php?t=2057511837&page=2
Quote
low temperatures i.e. above about 5% but less the 15% have no effect on Li charge rates, the graph isn't linear. in fact it can improve charge rates as the heating generated near the end of the charge taper phase can be carried away by the lower ambient temperature
where the electrolyte is in danger of freezing and even at slighter higher temperature, the mobility of Li ions is degraded only slightly, at electrolyte freezing then a careful low C " pre-qualifying charge" has to be applied , extending charge times significantly ( or the battery externally warmed)End Quote