thoroughbred
100 W
A friend gave me a damaged battery to fiddle with so I took some pics to show the internals. The history is that the bike was left outside in the elements during a rain storm which resulted in a non responsive condition. The battery was inverted in hopes of draining the water out. The top was removed in an effort to reset the bms manually to see if the battery would come back to life.
Apparently, 3 of the balance wires got severed when the top was cut off. They were spliced but when the balance connector was reconnected to the bms, the connector melted and smoked. At that point, friend abandons battery.
I accept said battery and continue what is now a post mortem investigation. The obvious and ultimate conclusion is that the battery was not rainproof. This seems like a huge weakness given how a typical Sur Ron bike could be expected to be used. If ridden offroad, one often rides in the rain. If ridden on the street, they would often be parked outside, exposed to rain.
Apparently, 3 of the balance wires got severed when the top was cut off. They were spliced but when the balance connector was reconnected to the bms, the connector melted and smoked. At that point, friend abandons battery.
I accept said battery and continue what is now a post mortem investigation. The obvious and ultimate conclusion is that the battery was not rainproof. This seems like a huge weakness given how a typical Sur Ron bike could be expected to be used. If ridden offroad, one often rides in the rain. If ridden on the street, they would often be parked outside, exposed to rain.