wa8yxm wrote:
If it says MARINE it is not DEEP CYCLE.. if it says GC it is (GC-2).
Concur !GC (Golf Cart) batteries are designed for one purpose, providing power over a long period of time, to a greater DOD, and survive multiple discharge/charge cycles.
While not a perfect apples-to-apples comparison, the EverStart 27DC weighs about 50 lbs. A Trojan T-1275 (size GC-12) is a smidgen bigger but it weights 85 lbs. That extra weight is extra lead, which is GOOD !
IMHO, any battery that advertises a CCA or MCA is NOT a true deep discharge battery.
I happened to have had an email conversation with Trojan about this topic
(The T-1275 is a true deep discharge 12V "golf cart" battery; The SCS225 is more of a "dual purpose" battery, one of the the few that Trojan actually lists "Cold Cranking Amps" for.)James M. Cobb Technical Support Engineer Trojan Battery Company wrote:
The T-1275 is a higher capacity battery, rated at 150 Ah where the SCS225 is rated at 130 Ah. The T-1275 is a heavy duty 12V golf cart battery with thicker plates, which means it has a longer cycle life at 50% DOD, 1200 cycles versus 600 cycles for the SCS225.