On Thu, 14 Oct 2010 07:30:09 +0700, Bruce in Bangkok
wrote:

By the way, how big are these "6 v golf cart batteries" that give you
500 amp-hours? The usual 6 volt golf cart battery is the T-105 that is
rated at 225 amp-hours and wiring two in series to get 12 VDC results
in 225 amp-hours capacity. 4 wired series parallel gives 450
amp-hours.

You can get 260 A-H with a pair of T-145s but that's about as good as
it gets.

http://www.google.com/search?hl=en&s...q=trojan+t-145