Circuit diagram for overcharging cut-off for a 12V battery?

[okeke Joel c.]

Hi guys,
Am new here, my name is Okeke, I simply need your help in solving an issue. It has to do with building a circuit that can cut-off charging of a 12V battery when its fully charge and also to start charging when its is weak at about 11V, the battery is 100AH ratting wet cell Hydrogen-sulphite electrolyte. thanks

 

[SteamKing]

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