Maxcom MM821BB Manual page 15

2-3 times.
2、Keep temperature between 0°C and 40°C during
charging
3、With time passing by the battery will gradually be worn
and thus need longer time to charge. This is normal.
4、Long-time continuous charging may damage battery and
charger, so please stop charging in time.
The l battery gives or gets an electric shock quantity
shortage, cellular phone will show to give or get an electric
shock a quantity not enough information, the battery
diagram mark will also show blank.If the battery electricity
once measures low, the equipments will automatically shut
down.Need to the battery refresh just can continue to use a
The battery uses a regulation
cellular phone behind.
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