Anyone else going through batteries

Got just about 3 years out these OEM batteries in this Volvo with heavy hotel load. Don't know the brand but they were dual service it said, cranking and deep cell. I plugged into shore power whenever I could to trickle charge them and keep them peaked..

 

12v. Espar engine heater. Way better than a block heater.

 

on my last truck I had Exide batteries($95 each non agm ) and they lasted 4.5 years.. added twice electrolyte to make proper level. I had sleeper espar heater in that truck..

 

Fridge,TV,laptop,printer at times, gaming system at times, Cab Heater and interior lights. But when I use the microwave I always run the truck.

 

I second the marine batteries suggestion. They are designed to be discharged multiple times. It would seem like a good idea for this type of use.

 

The lower cold cranking acid batt. will last longer, It seems like the more plates inside your batt. the faster it will go bad because trash will pile up in bottom of batt. and short out the plates faster because they are put closer togeather on hi cold cranking batt.

 

Then, in that case, dedicate one as the cranking battery only.

http://www.maxwell.com/products/esm/esm-ultra-31-1800

 

baha has it right. High cold cranking amp batteries have thinner plates to achieve the cranking amps. Thinner plates equals less life.