It may be because the protection board used does not match, the charging protection voltage is too low, so that when it is not full, the protection board has been moved, disconnect the charge, it is recommended to buy a suitable protection board replacement. And pay attention to the distinction, different types of protection plates can not be common, such as: conventional 3.7 volt lithium battery series of battery pack, lithium iron phosphate series of battery pack, while lithium polymer battery and 3.6 volt low-voltage version, and 3.85 volt high-voltage version, as above, the full voltage after the series of these batteries are different.
Full charge and dissatisfaction mainly depends on the size of the charging current and the length of the charging time, due to the low temperature in winter, the chemical is not active, so it needs to increase some time in the case of a certain charging current, due to the high temperature in summer, the chemical is more active, so try to shorten the charging time, to avoid long charging may lead to battery swelling.