PLUS and V1 have LiFePo4 battery, that's known for its long life. But if it fails for some reason (water damage?) - visit this section.
CB+ EXTENDED BATTERY FOR OW+ AND V1 [PRE-ORDER]
![CB+ EXTENDED BATTERY FOR OW+ AND V1 [PRE-ORDER]](/environment/cache/images/300_300_productGfx_386/cbp.jpg)
Pre-orders end Sunday, 9th of October
AVOID PAYING HUGE SHIPPING COSTS AND TAXES, BUY IN EU!
GENUINE PRODUCT DIRECTLY FROM CHIBATTERYSYSTEMS
CB+ - The Original Onewheel PLUS and V1 Battery System Upgrade
Availability: out of stock
V1/PLUS BATTERY

If your PLUS battery died (and you're 100% sure it's not the BMS, which takes care of the batttery pack and keep it balanced and running) - here you have a perfect replacement.
Availability: out of stock