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This is alittle test i did on the Everstart Maxx Marine 29dc batteries. I have searched but didnt see any detailed Ah test, so this is mine. I know its not to the standard 10.5v but i drained it what i believe is a safe voltage of 12v. There are two batteries in parallel, both manufactured 6/23...

So the detail is i have two lead flooded deep cycle 29DC batteries in parallel to power a 1500w convertor only when we have power outages which happens only a handful times a year. The majority of the time these will be floated. Now i cant seem to find a charger and a maintainer that keeps the...

By no means do i think my test was a true Ah test because a true Ah test risk damaging the battery which i wasnt interesting in doing. But its information i was looking for and couldnt find when researching the batteries so it might be useful to someone else. Also i am not saying anything...

Thanks for the responses. I will look into battery tender.

I have a sc1282 charger hooked up.. It keeps the voltage at 12.8v on float. Seems low but i think and i havent seen it in action yet that it only charges when needed. I have seen range between 12.8 to 13.0v on float. I asked the company about why it floated so low and they said that was in...

Oh one thing to note is thes was done at 66f degrees. 300w would be a little more than 28A with my efficiency. My inverter got alittle warm during the 6 hours but not to the point the fan kicked in.. Still energy loss...

I ran across this because i have the same situation... I am guessing the batteries where Everstart Max 29DC? That is what i have and have the high resting SOC. They do say maintenance free so calcium seems like the right answer. Anyone know a good float voltage target for these? I am coming up...

Different charts that i have seen marks 12v at different depth of charge. I have seen 50 to 30%. Interestly if i assume 40% and a linear discharge i would be right at the advertised 114 Ah rating. This is assuming alot but still interesting. Also note that the 114 Ah is a 100 hour rating.