It's probably not a great battery but mine is working good. It might look like it is old but it just gets dirty quick because of it location. I have a good battery monitor so I know when my battery is charging and draining. I have a storage unit that has electric. Remember that even with the main switch off there is still a little amp pull from the door monitor that turns on and off light and steps. It's only about .005 amp. It goes down hill from there if anything is left on. Again a good battery monitor is a great investment and I set that up based on my guessing that is it about an 80 Ah battery. After I kill this battery probably will go Lithium.
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