Water would have most likely gotten into the contacts between the battery and the bike. The BLOKS computer just flashes part of the lowest portion of the battery icon and nothing else turns on. It's possible the BLOKS system is damaged too but I don't want to spend the money on upgrading to...
I have a 2017 Vado whose battery looks like PetronP's. After some rain, it doesn't seem to charge anymore and now I'm getting a single flashing LED on the far right. Is the BMS locked? What's necessary to unlock it?