|
On UPS systems I maintain when we load bank them the net power yield drops dramatically if they are too cold and even under the heavy load which warms them up quickly they never get to the same output levels as they do if kept up to temp before the load session.
These are the big Trojan and Exide VRLA batteries in a 480V DC chain with a total of 3600 of them under load.. The difference is about a 5% drop in run time if the batteries are too cold at the start.
Good luck
Dave
__________________
If it has a motor its worth playing with.......
|