Do not use any damaged battery or charger
The battery can only be used for the intended purpose
Have sufficient battery power, if don’t use, it will automatically gradually discharge.
Too high or too low temeperature will affect the performance of charging battery. Should be placed in dry and warm environment.
Do not put the battery into the hot or cold places, otherwise it will reduce battery life and capacity. Try to keep the battery at room temperature. Even if sufficient power, if the battery overheating or too cold will temporarily interrupt.The effect of humidity below one degree on the lithium battery is especially large.
Do not put the battery short circuit. The polarity of the battery short circuit will damage the battery or cause a short-circuit items.
Do not put the battery into the flames, so as not to cause an explosion.
Battery charging time depends on the remaining battery power and the type of battery and charger, battery charging / discharging times, can be a hundred times, but will gradually loss. When the operating time was significantly reduced than normal,should  replace the new battery.
Using a new battery, charging should be sufficient for several times before, (must wait for the green light up) and try to make the battery run out, then go on the next charge, repeat several times, the battery will be activated to achieve the best state, and the prosthesis will reach the longest service time.Without the restrictions in the future using, but it’s better fully charge.
Use the specified battery, charging with the specified charger, when the charger is not in use, please cut off the power, do not let the battery in the charger long time charging, overcharge will shorten battery life.
Use only the manufacturers of accessories and batteries, undeserved battery replacement cause danger,the prosthesis should be charged by special charger provided by the manufacturers,use other charging equipment may lead to the danger.