Cold months are hard on lithium packs. A few habits keep a FastSport Y88 electric mini dirt bike ready for spring.
Leave the 48V 21Ah pack around 50-60 percent. Full or empty for months is what shortens pack life.
A garage that dips below zero is worse for the pack than for the frame. Bring the battery inside if you can.
There is no engine to service. Check chain tension and lube, tire pressure, brake pads, and wipe the hydraulic fork and shock shafts so dust seals stay clean.
Charge to full, check every bolt on the bars and wheels, test both brake levers, and start in the lowest power setting. The 2200W mid-drive motor and 28-40 MPH top speed come back exactly as you left them - up to 53 miles of range per charge.
More specs and details: FastSport Y88 electric mini dirt bike