[RE-wrenches] Surrette Battery Question

2008-08-01 Thread Allan Sindelar
Wrenches, In late 2003 we installed a 24V set of Rolls-Surrette 4-KS-21PS 6V 1104 A/hr batteries in the off-grid system of a long-time client. The client's system had a democracy array of around 800 watts of tracked PV. In early 2005 we added 1,280 watts of additional PV, and the client hasn't run

Re: [RE-wrenches] Surrette Battery Question

2008-08-01 Thread jay peltz
Hi Robert, When you mention cycling batteries, are you saying that batteries in a offgrid system that are being cycled 15-25% a day should be cycled even deeper than that? Thanks, jay peltz power On Aug 1, 2008, at 8:36 PM, robert ellison wrote: A couple things that I haver noticed in

Re: [RE-wrenches] Surrette Battery Question

2008-08-01 Thread robert ellison
When i went to an SEI class at the Trojan factory one of the points mentioned was that the best way to get the lowest cost per watt from the battery bank (T-105's were at the time the lowest) was to cycle them to 80% discharge then fill them all the way up. Not feasible in an off grid system at