Mighty Max 12V 200Ah 4D SLA AGM Battery - Ideal for Solar Systems

juangjuang: No complaints here.
Affordable battery that works as promised and i use it on a daily basis for my work van. I brought mine for almost years now.
Its best if you also equip your vehicle with a dual battery isolator for optimum performance.
I run all types of power tools and it consistently maintains a full charge. I like it so much i brought another battery for my second working van.

United States on Sep 07, 2021

Offgr1d: Don’t spend your money on this company. I purchased 4 of these solar batteries for a Class A RV House system. The setup is 1kw of solar, 6000w Aims inverter/charger/transfer.
The charge settings applied were to battery manufacture specs and very typical setup for RV (powers fridge, LED lights, and stereo). They have died completely in 10months light use. Being that they are supposed to be designed for solar - this should be the ideal battery for long term / light use, float charge situation. The batteries show full charge and yet last maybe 1 hour with a 10amp draw.. System is setup 24v series / parallel 400ah... This battery lasted less than a year!!! I had the same setup with cheap USED GC2 golf cart 6volt series/parallel flooded batteries that lasted way longer!
So I also tried to deal with MightyMax - they said they need all 4 batteries back at their warehouse in NJ.. These weigh 115pounds each! They would not cover the return shipping and define they must be sent back with “original” packing and foam inserts. Who keeps Huge cardboard Boxes?? So basically I cannot return them - the company does not stand behind their product or care that someone...

United States on Feb 21, 2020

Nicholas: This thing weighs in at a mere 120 lbs. Make sure you lift with a twisting, jerking motion. Take your back completely out of the equation. FedEx delivered in a well packaged box. They did leave it upside down though....guess those labels on it don't really mean anything..... Good thing it is a sealed battery! I'm sure it will work just fine for my applicatio, although I havent hooked it up to the system yet.

United States on Jul 21, 2019

JT: These batteries are awesome - and I got phenomenal customer support as well.

I have about 8 of these for two off the grid RV spots... they power a few large RV's and I've used them to brew some off my beer off the grid... overall, the batteries last forever even when I am messing with my system and take them off line.. later on they still have a full charge and can power most anything I can throw at them.

they are heavy - but I'll buy more.

United States on Feb 22, 2019

Lori Biediger: Got 2. Ordered 2 more.

1 month later: Got the second set 2 days before hurricane Irma came to visit. My wife and I were comfortable knowing that these 4 monster batteries would keep us powered through the storm. And that’s exactly what happened. Although these batteries are strong and stable, they’re not an unlimited source of power. No battery is. Expecting a couple days of minimal sun, we practiced basic energy conservation. No hair dryer or microwave oven use. We were still comfortable and we felt safe. I intend to add 4 more of these this month. When I get licensed and start my solar power business, I will install Mighty Max Batteries.

United States on Sep 05, 2017