Fishinghat wrote:
donn0128 wrote:
There are only a couple of actual manufacturers, so your real choices are few. If as you say you boondock a lot and have the room, golf cart batteries are your best option.
X2 (While there are only two manufacturers, they make batteries by contract, and make them the way the retailer wants them made.)
I'd also recommend golf cart, also known as 6 volt deep cycle, batteries. The cheapest place I know of is Costco.
You got 8 years out of your old batteries. That's great. I'd also recommend changing the engine batteries as a preventive measure.
I'm kinda with pianotuna. Don't replace just because they are 8 years old. Replace when they fail. Regarding 6 volt golf cart batteries. Yes, they are very good and less cost.. however I'm not sure Senior Gramma want's to babysit batteries (check and add water, hydrometer, equalize, etc....) If the batteries she has now has performed OK maybe buy similar ones. Do we even know if the current batteries are wet or sealed? When I was putting my solar generator together I researched all about batteries and was about to pull the trigger on 6 volt golf cart batteries but having to vent them added complexity to the design and at the end of the day I did not want to be a battery maintenance man other than make sure they do not get discharged less than 50%. I wanted something I can plug and play and not have to look at again until failure. I agree with the 6 volt route but ended up with AGM as pianotuna suggested.