Kevin Means
Site Team
Solarman... our batteries are six months old, manufactured by East Penn and are 105 AH Group 31s. They are identical to the OEM batteries I just replaced. FYI, our Magnum 2812 inverter/converter has programmable settings for different types of batteries, but the equalization settings for type1 and type 2 AGM batteries were disabled at the factory.solarman said:How old are they and what is the make, I will let you know the equalize interval.
Several years ago, when researching whether or not AGMs should be equalized, I found a variety of responses from different manufacturers. East Penn doesn't directly address the issue, and Trojan conspicuously leaves out equalization settings for its AGM batteries. Lifeline says their AGMs can be equalized, but they also say it's problematic, because there's no way to determine how much electrolyte escapes through the valves, no way to replenish the electrolyte if it does and typical equalizing voltages can damage AGMs.
I'll be interested in hearing what you recommend.
Kev