12V Battery Charger automatic off



A friend of me wants to build 12V Battery Charger automatic circuit. When battery fully as a result will cut off voltage depart battery suddenly. I meet this circuit will should can is usable. It uses Op-amp IC number LM311 perform check the level voltage about 14.4V liberate current give Relay cut off battery. And this circuit be have power supply regulate give IC LM311 in order to get work have the stability most. For this circuit can apply to Lead acid battery 12V almost every the size Ah depend on the size of transformer that use and D1-D4 and C1 with , see in the circuit adds.
If you want to report any meterial please