I bought a pair of these 3 years ago. We do a lot of dry camping and use the batteries heavily, keeping a Dish Sat receiver on 24 hrs / day. Charge up 2 or 3 times a day with a Honda gen, can easily go 10 days w/o hookups. One other brand is better, costs $400 elsewhere. I'll buy these again if they fail before we do.

I purchased two of theses batteries. One stopped excepting a charging at 25 months. The other one is still working going on 30 months. Both of my batteries are on a continuous charging system in between fishing trips. I put a lot of research in to this battery. Was hoping for better.

PLEASE READ THE TOP LABEL ON THESE BATTERIES. IF YOU WANT ANY AGM BATTERY TO LAST YOU NEED TO "CHARGE AND EQUALIZE" THEM A FEW TIMES A YEAR IF THEY'RE NOT PERMANENTLY CONNECTED TO AN AGM CHARGER. YOU CAN'T USE ANY OLD CHARGER. IT NEEDS TO BE AN AGM CHARGER BECAUSE ALL AGM BATTERIES, EVEN THE EXPENSIVE ONES (Optima), ARE PICKY ABOUT HOW THEY'RE CHARGED. THEY NEED TO BE CHARGED BETWEEN 13.8 VOLTS and 14.6 VOLTS. IF YOU DO THIS, THEY WILL LAST YOU MANY YEARS, SO PLEASE BUY AN AGM CHARGER IF YOU BUY AN AGM BATTERY. I LOVE THESE BATTERIES. I'm pretty sure all the people complaining don't charge and equalize their batteries eventhough it says to do so right on the top label. I love these AGM batteries. I use them to power a backup sump pumps in my basement. I use to use the regular flooded lead acid batteries but I got sick of checking the electrolyte and refilling if necessary every 6 months. I decided to give these a try and I'm so glad I did. They work great after years of use. There's no need to check electrolyte. That's a time saver in itself.

Recently built a new vessel, commercially shopped around for batteries, wound up getting these from Sam's! I am using 3 sets of them linked in series for 24VDC and 2 for 12V auxiliary engine starting. Highly reccommended. Hint: These batteries need the new style battery chargers that will not overcharge them.

So far so good! These replaced the two wet cell batteries for our 24' RV. Easy to install and so far so good on performance!

Lots of juice, keeps my bass boat’s large electronics and livewell running all day long, and reliably cranks the engine to bring me back to the dock.

This is the very same battery that is sold by Marine supply stores for a little over $300. The manufacturer is the same but sold under a different brand.

Our motorcoach came with relatively weak and poorly made Harris batteries- from the factory! Replaced them with these and have not looked back since. Holds power great, stores strong, and we are so happy we made the change!

December, 2019 - Purchased 2 AGM marine 31DT batteries for 24vt minnkota trolling motor. Lightly used and regularly charged, maintained with onboard battery system. September, 2021 - Both dead and not accepting charge.

I installed 3 of these to run my 36v Minkota Ulterra on my Walleye boat, 3 years ago. I’m very impressed with the performance and value, especially compared to Optima! 5 stars! Capt Jim BALZER, DoubleJay Sportfishing