Interstate Batteries Marine/RV Battery 12V 100Ah 825CCA Dual Purpose Power Pure Lead AGM RV & Marine Starting Replacement Battery (Group Size 31M) Boats, RV's (8-31MAGMDC / 31M-AGM-A)

Great battery for starting motor and running electronics.

Great value for an excellent battery. Performs well.

This is a large battery, bigger than I expected. But it sure packs a punch. It fit well in my Ski Centurion even though it was so big.

Good quality for what I needed it for

Like another purchaser I got 2 bad batteries! What a hassle! Now I have to figure out how to get them replaced and back to the boat ...

Put one of these in my Tractor, excellent battery -- wish I would have put two in my Truck.

I have a 28 foot boat and a 36 foot diesel pusher motor home that just happen to need new start batteries at the same time. I have used Interstate batteries in the past and have been extremely happy with their performance so I jumped at the chance to try this one. The battery is an exact fit for the OEM size and requirements for my boat. The battery was shipped in a much larger box and cocooned in a thick heavy duty padding. It is heavy and I'm sure the delivery driver was thrilled with the weight. The battery arrived fully charged and ready to install. I initially installed it in my boat for use in prepping the boat for winter storage and then installed it into my motor home for use until next spring. I have used it for approximately six week under heavy load conditions and have monitored the charge / discharge / charge and it has performed perfectly as designed. The battery is powerful enough to start the large V8 engine in the boat as well as the Cummins diesel engine in the motor home on cold days. I checked the price at various suppliers and could not find a lower price.I have an Interstate battery in a Mazda RX7 convertible that is now 10 1/2 years old and is working perfectly. The original warranty on that battery was for three years. I have always been happy with Interstate and I believe this battery will give me great performance for many years.

$1,000 for 2 batteries and the damn things are dead. Test your stuff before you send out