docw009
1 MW
I have a very lightly used 13S 48V Dolphin pack from 2015. Less than 400 miles on the bike that it came with. I took it out yesterday and found it wouldn't take a charge after the ride. Tried two different chargers, which do work on my other 48V battery. Finally I took it up to a partial charge of 53.8V using the discharge port. Still drawing 1.0 amp when I terminated charging. Then opened it and checked the cell groups. No bad cells to inhibit charging. All in balance.
The BMS looks sturdy, with screw terminals for the power connections. Big heat sink on the discharge devices The board provides the interface to light the LED display commonly seen on Dolphins. I could just replace with a generic BMS, but then I would lose the 5LED voltage readout as well as the illuminated ON/Off switch. Anyone have a source for this kind of BMS?
For a work around, what's the risks with if I just rewire the charge connector to the discharge port? i Might not have over voltage protection? Balance won't work?
The BMS looks sturdy, with screw terminals for the power connections. Big heat sink on the discharge devices The board provides the interface to light the LED display commonly seen on Dolphins. I could just replace with a generic BMS, but then I would lose the 5LED voltage readout as well as the illuminated ON/Off switch. Anyone have a source for this kind of BMS?
For a work around, what's the risks with if I just rewire the charge connector to the discharge port? i Might not have over voltage protection? Balance won't work?