Our main generator wasn't working. Would go through 3 or 4 start cycles before the battery was flat - despite that battery having been on a maintainer for weeks.
Tried putting our best charger on it, and kept going into 'reconditioning' mode. That finally finished and it still wouldn't work - even with a jump start.
Swapped batteries with our other generator and it fired right up. So this battery is toast. So bad it pulls down the 200A jump starter.
It's a 'sealed' lead acid. But not really. lol. the plate over the ports is just glued on. and the refill holes are just covered in rubber caps. The gases can get by that. If it were to tip over the electrolyte would find its way out.
So don't be fooled by 'sealed' batteries being safer to charge indoors. AGM's will have quality release valves that will only vent hydrogen gas if overcharged. These 'low maintenance' batteries are NOT AGM's unless they clearly say so on the label.
I'm tempted to try adding distilled water and give it an equalization charge, but these lawnmower style batteries are probably quite cheap, and I don't feel like blowing myself up today.
