1. Do not use spoiled or useless battery or charger
2. Do not throw the battery into fire or otherwise it to heat
3. So not use it for other purposes
4. The charging time of the batties may be decided up on its remaining energy as well as the type of the battery or charger that is used
5. The battery initially not charged. Be sure to charge the battery before using it for the first time.
6. When loading the battery, make sure it is oriented correctly
7. This battery can be charged or discharged several hurdred time. It should be replace by new battery when it can not work as used.