Re: (ET) Golf cart batteries

[Marcus <marcussab gmail com>]

Mike,

The best thing for your batteries would be for the batteries to be  
lightly used while you are gone because batteries like to be used and  
an idle lead acid battery tends to sulfate while inactive. The sulphur  
in the electrolite comes out of solution and deposits on the plates.   
This happens quickly on a discharged battery and slowly on a fully  
charged one.

The second best thing would be a  good quality battery tender which is  
any intelligent charger that applies a small or intermittent charge to  
the batteries, once fully charged, as long as they sit inactive to  
counteract the slow discharge lead acid batteries have. This keeps a  
float charge on the batteries which tends to keep most of the sulphur  
in solution and off the plates.

Hope this helps.  More battery info at Battery University: 
http://www.batteryuniversity.com/index.htm

Marcus.