Note:
If the LED color can't be changed from RED into the GREEN , it means that the battery may be broken and you need to check if the battery is broken in advance For the battery if you don't use it for long time or Lack of electrolyte, the voltage will be much lower and the battery will be easy got broken and battery will not been charged any more.
Big Feature:
1- Multi function intelligent protection
2- intelligent charging mode
3- aluminum radiator
4- comuatibility
5- 4 PCS charging indicator
6- intelligent repair mode
7- can detect battery remaining power

• 100% Brand New And High Quality, Suit to Lead acid or gel batteries;
• Can be used on 12 Volt battery systems ONLY, Automatic charging without over charging
• Short Circuit Protection, Over Current Protection
• Battery Polarity Reversal, Multi Colored LED display for status indication
• RED Led on when charging, GREEN Led on when fully charged;

100% Brand New And High Quality, Suit to Lead acid or gel batteries;AOAUTO