12V 35AH Gel Battery Replacement - Mighty Max Battery

Vietnam Red Devil: Using old and damage panels, but it works for night lights.
I need to buy 2 more .

United States on Oct 13, 2023

Jordi: The deep cycle marine grade battery was difficult to locate in my region since I’m not exactly near water. They’re useful for my solar gate opener and can be used for trolling motor or electric golf cart! The price is equivalent to auto zone/harbor freight. I bought the same brand compatible battery box with vent holes for extra weatherproofing so that I could use python locks to secure my battery to the gate and prevent theft.

United States on Jan 07, 2022

Jack McFarland: The battery appeared to be a good value for the money. It arrived well packaged. It included the terminal bolts to screw into the female posts. However, one post was not threaded properly. Both bolts fit well in one of the terminals but neither fit well in the other. When I screwed it down the terminal top broke off with the bolt in it. I was very surprised but when I contacted customer support they issued a full refund/return. I was very pleased with this service. The battery otherwise seemed to be in good shape. As other reviewers have commented, the bolts were small and I would prefer a larger bolt size to use larger lugs to attach.

United States on Dec 24, 2021

soaknewe (so can you): Installed this battery in each of my two driveway gates. Power for batteries are from a solar panel. Installed in Early June of 2020. Batteries are in a protected (from weather) container for the gate operators. I'll update here if anything goes amiss. But so far, so good. Looking forward to see how they operate in Winter where we get into the 10's.
Update: December 2020. One battery won't hold a charge. Won't even charge to 12volts. Other one (bought 2) is holding up fine. Went to the Might Max website and entered a claim to get the defective battery replaced. Will let you know what happens. Stay safe.

United States on Jun 23, 2020

C. Fuechsel: The battery appears well made, and I like the tapped terminals with supplied M5 bolts. Much easier to connect leads than with nuts and bolts. The description is confusing because it reads "GEL AGM Battery". Well, these are two different technologies, with different charging requirements. Gel cell batteries do have glass mat separators as do AGM batteries, but I have never seen GEL batteries described as " GEL AGM batteries". Technical information for this product is not available on the Mighty Max web site. But there is a specification sheet that I learned about from their parent company, and it took two phone calls to get it emailed to me. Reviewing the spec sheet reveals that this is indeed a GEL battery and the recommended float charge voltage is 13.2 to 13.4 Volts. You can cycle-charge the battery after a heavy discharge using constant voltage set to 14.2 to 14.4 Volts and limiting current to less than 10 Amperes. Note that these voltages are lower than would be used for a flooded cell battery, so only use a charger that has a specific program for GEL batteries. Failure to do this will likely damage a GEL battery. I have not used this battery enough to say anything about...

United States on Jan 26, 2019