Mobile phone battery with straight punch into the power, universal red can be how the same thing?
Check the phone charger is broken, try to replace the phone charger.
May be caused by the battery memory function, it may be relatively low charger voltage can not charge, usually universal charge voltage is relatively high, so you can charge. Do not use the universal charge for a long time, so as not to damage the battery.
With a mobile phone charger, a one-time charge full, no matter how long, the second charge on it, the purpose is to remove the battery memory function.
