W020 Code
Check Stradalli W020 e-Bike Error Code :
Indication conditions
If the temperature exceeds the guaranteed operating range, the battery output stops.
Operational restrictions being displayed
No system functions will start.
Solution
If the temperature is higher than the temperature at which discharging is possible, leave the battery in a cool location with no direct sunlight until the internal temperature of the battery has decreased sufficiently.
If it is below the temperature in which discharge is possible, leave the battery indoors, etc. until its internal temperature is suitable.