Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches September 13, 2025 ...

GEL & AGM Battery Info

July 02, 2018, 08:47:41 pm

Found these three East Penn documents filled with good info including temp compensation, why Sealed VRLA, AGM vs GEL and more.

East Penn, Deka  & MK are all the same with different corporate brand names.  Also many after-market auto store brands are identical to these.

Quote Selected

Re: GEL & AGM Battery Info

Reply #1 – July 02, 2018, 09:46:30 pm

I wish they could make an battery that can operate at 130 degrees with no harm,I only get about 2 to 3 years in my cars.
Steve

Quote Selected

Re: GEL & AGM Battery Info

Reply #2 – July 02, 2018, 09:56:26 pm

With lead batteries, the more pounds of lead, the more capacity. Plain and simple. I once built an electric car with 12 East Penn Deka gell 8G4DM marine deep cycle 130LB batteries, worth about $4,000. After about 20 deep discharges, capacity started to diminish. So, buy as much lead as you can handle and don't discharge beyond 50% discharge, or go with lithium.

Quote Selected