Adrian_
10 W
- Joined
- Apr 12, 2022
- Messages
- 84
So I have this battery charger https://www.aliexpress.com/item/1005004128152511.html?spm=a2g0o.order_list.0.0.23001802LgOIId
I left my battery to charge overnight and in the morning, the battery voltage was at 79v not 84v. Tried replugging it but nothing. I thought maybe the battery was spanked like loose balancing wire, rode it just fine until BMS cut out due to under voltage protection around 60v which was normal. Tried charging again but nothing, the BMS doesn't even kick back on when I plug in the charger. I put a voltmeter to the charger output and I get 90mV which doesn't sound right. To me it sounds like faulty charger but it still turns on so I'm wondering if it's safe to take apart these 20S chargers to see if there's an internal fuse or some sort of protection that I tripped that needs to be reset? I don't want to get shocked by a high capacity cap. Never took a charger apart so I don't know how they are built.
I left my battery to charge overnight and in the morning, the battery voltage was at 79v not 84v. Tried replugging it but nothing. I thought maybe the battery was spanked like loose balancing wire, rode it just fine until BMS cut out due to under voltage protection around 60v which was normal. Tried charging again but nothing, the BMS doesn't even kick back on when I plug in the charger. I put a voltmeter to the charger output and I get 90mV which doesn't sound right. To me it sounds like faulty charger but it still turns on so I'm wondering if it's safe to take apart these 20S chargers to see if there's an internal fuse or some sort of protection that I tripped that needs to be reset? I don't want to get shocked by a high capacity cap. Never took a charger apart so I don't know how they are built.