Avoid prolonged storage in a fully charged or fully discharged state (50% charged is ideal)
Store at normal room temperature – avoid storage at over 20°C or below 5°C (41 °F and 68 °F).
Where possible avoid discharging your battery to below 20%.
Avoid leaving the bike in direct sunlight on hot days – heat is a battery’s worst enemy. Temperatures over 30°C (68 °F) are harmful to Li-Ion batteries.
Over-discharge can occur when you push your bicycle batteries to their limit. Full discharges put a lot of strain on the battery.
Constantly making the motor and battery work hard (e.g. cycling up steep hills with full assistance) will reduce battery life.
The practice of charging to only 80% of capacity can almost double the life of a Li-Ion battery.
Use a good quality charger designed specifically for your type of Lithium-Ion battery.
Use the slowest (lowest power) charging option your charger supports unless you are desperate to get back out on the road.