On Sat, 25 Oct 2014 10:15:52 -0700
Lew Wolfgang
On 10/25/2014 10:09 AM, Billie Walsh wrote:
You could put several 12 volt batteries in parallel and connect to your UPS.
I was always taught not to do this. The internal resistance of batteries is so low that if they're connected in parallel one will discharge through the other. I remember seeing diode terminals that could be used to allow parallel connections for deep-discharge battery applications.
Because all batteries are not the same. When discharging deeply, one will go flat before the other and may be reverse-charged. And it is not resistance but difference in potential that causes one to discharge through another. jd -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org