Ma Dong's stroller can't be recharged.

There are two reasons why the stroller can't be charged: First, the charger is improperly used, resulting in excessive charging current. For example, charging a 48V battery with a 60V charger causes the battery to heat up. Therefore, electric vehicles must be charged with a matching charger, which is safe and efficient. Second, the battery "starved to death" when it was not used for a long time, that is, the battery plate was vulcanized and could not be charged, or it kept heating after charging. Find someone to repair or replace it in time. Even if the electric car is not used, it should be charged once a month. Three, the battery is short of electrolyte or aging, damage, charging resistance can also be increased, leading to fever, combustion, should be timely maintenance, inspection or replacement. Generally, lead-acid batteries have a one-year warranty and a life span of one to two years. Four, due to accidental vibration and other battery short circuit, resulting in excessive current caused by fever, need to be detected in time, can be replaced as a whole or with the same specifications, the same performance of a single replacement.