01-01-2021, 07:28 AM
Hopefully someone who actually knows will pop in here. But it seems to me that we had another similar thread go unanswered. I could be wrong.
I'm just guessing, I don't know the first thing about that charge controller. I would assume though that the issue must be that it won't charge the battery if it's too far depleted. A lot of other types of battery charger do this too. So I would measure the battery voltage. I expect it would be out-of-spec. In that case I'd be tempted to "jump start" the charge controller by connecting a benchtop power supply to the battery to bring the voltage within the charge controller's legal range. Hopefully then the charge controller will take over, at which point I'd disconnect my benchtop power supply.
At the least though, when you have the bottom cover off, see if the battery is puffed up. If it is, then you should replace it anyway.
I'm just guessing, I don't know the first thing about that charge controller. I would assume though that the issue must be that it won't charge the battery if it's too far depleted. A lot of other types of battery charger do this too. So I would measure the battery voltage. I expect it would be out-of-spec. In that case I'd be tempted to "jump start" the charge controller by connecting a benchtop power supply to the battery to bring the voltage within the charge controller's legal range. Hopefully then the charge controller will take over, at which point I'd disconnect my benchtop power supply.
At the least though, when you have the bottom cover off, see if the battery is puffed up. If it is, then you should replace it anyway.