VMAX MR137-120 AGM Sealed Marine AGM Battery 12V 120AH for 50lb -110lb thrust Minn Kota, Newport Vessels, Cobra, Sevylor and other trolling motors. VMAX MR137 Deep Cycle 12V 120Ah Battery BCI group 31

I was looking for a deep cycle marine battery for my 8ft dinghy but bought the wrong battery. This battery is excellent for a much bigger boat and I did replace it with a lighter battery which is great. This is not a negative review.

Bought a pair of these batteries to use as house batteries in my van camper back in 2015. They have been used and used a lot ever since. I just bought two to replace the first two as a precaution. The first two were not even dead yet. Other batteries that I have used for the same purpose over the years have typically needed replacement after two or three years. I hope these new ones are as good as the ones they are replacing. Great product.

We’ll the few times I took it out it lasted all day on the water and still had half battery left was great for holding charge on my trolling motor, the only Con Iv delt with is the weight it’s very heavy If you have a hard time lifting heavy objects I’d stay away , but if your young like me and want more time on the water I’d recommend!

I’ve used this battery 2 times now. I have a 45 lb thrust MinnKota trolling motor and under power on a standard battery, there was noticeable power loss within an hour. On my first use with the VMAX AGM battery, there was no power drop noticed over 8 hours of use. I put the battery on the charger that night and it registered 13.8 volts. I could have run the motor for two days without charging. The battery fit in the MinnKota battery box. This battery is simply amazing!

I contacted VMAX via their contact web form and also by email trying to get my defective battery replaced. VMAX never responded to any of the emails I sent them. They completely ignored my request. I also attempted to call them on the phone multiple times after no response to my emails. I finally got a person on the phone who asked me a bunch of questions about the type of smart charger that I was using, etc. They told me they would see what they could do and would get back with me. The person never got back with me and the company never responded to any of my email requests. I paid $307 for this battery and was expecting it to last for years. Companies like this should be removed from Amazon.

So far these batteries are working great, but I usually get at least 5 years service out of AGM batteries, so the jury's still out. I paid about $270 ea. for these, which is a good deal pricier than the last time I bought group 31 AGM batteries - paid $160 ea. + shipping back in 2005 - wow, 11 years ago. Guess I got my monies worth out of those. Key to keeping these a long time: don't let them get cold, and keep a maintenance charge on them over the winter.

I bought this for an ArkPak. I've used it several times now and am very happy with it. I was able to run a Fantastic DC fan (mostly on low but occasionally on medium and high but running 72 hours straight), recharge a 15" Macbook Pro laptop several times and charge two iPhones several times. I also used it to top off a charge in a Goal Zero Lighthouse 250. The output was 12.7 volts to start and only dropped to 12.3 volts over the 72 hours. I am very pleased because I was hoping to get a three day weekend's worth of camping out of it while not dropping the output voltage below 11.

Both batteries won't hold charge just under 2 years after purchase.