The problem is that I have a Raycool 1000W Carbon Blue electric scooter that started to fail. I checked the battery first. The battery is composed by three 12v 12ah lead acid batteries. (the one in the picture)
I checked the voltage and the 3 in series had 40V. First question: Are they overcharged?
Then I checked the charger voltage. It gives 48V. Is this normal if it's a 36V charger? Also the end of the charger is a xlr 3-pin. One of them is totally disconnected, is this normal?
I would like to know if I have to replace the batteries or the charger. Thanks and sorry for my bad explanation.