I took apart my Master V4 batteries and they’re exactly the same. My Master went in the drink, fully submerged for over a minute, but no water made it into the batteries. Good design.
I just rebuilt the motor (opened it up and dried it out, greased the bearings, and treated the hall sensor with some CorrosionX) . The mainboard and mosfets look intact and they're dried out. I'm going to hook it all back up and see if it runs. There is conformal coating on the boards so they may be ok. I think the malfunction was from water in the display, connection terminals, and water in the engine messing up the hall sensors. I'll post more once it's back together.
Let me know how it goes I'm doing the same thing with my extreme but my packs were dry. We are replacing the charge board which should shut the BMS alarm off. Thinking of replacing the bearings while the wheel is apart and maybe the motherboard.
I took apart my Master V4 batteries and they’re exactly the same. My Master went in the drink, fully submerged for over a minute, but no water made it into the batteries. Good design.
@@ceradinimp Wow, fully submerged. Did the controller survived that because the top housing is not sealed at all. On these units.
@@jc84com Water got into the top housing and the motor. It wouldn't balance and wouldn't shut off. I had to disconnect the batteries to shut it down.
I just rebuilt the motor (opened it up and dried it out, greased the bearings, and treated the hall sensor with some CorrosionX) . The mainboard and mosfets look intact and they're dried out. I'm going to hook it all back up and see if it runs. There is conformal coating on the boards so they may be ok. I think the malfunction was from water in the display, connection terminals, and water in the engine messing up the hall sensors. I'll post more once it's back together.
Let me know how it goes I'm doing the same thing with my extreme but my packs were dry. We are replacing the charge board which should shut the BMS alarm off. Thinking of replacing the bearings while the wheel is apart and maybe the motherboard.