12 V automatic charger
This is a very simple scheme of the console to your existing charger. Which will control the voltage of the battery charge and when it reaches the set level, disconnect it from the charger, thereby preventing the battery from overcharging. This device has absolutely no deficit parts. The whole circuit is built on just one transistor. It has LED indicators that indicate the status: is it charging or is the battery charged.This is the actual circuit of the machine. In fact, this is a threshold relay that is triggered when a certain voltage is exceeded. The threshold is set by the variable resistor R2. For a fully charged car battery, it is usually equal to 14.4 V. You can download the scheme here - http://www.mediafire.com/file/0ldtxs4ma6mt2q2/12V-Auto-Cut-Off-Charger_circuit_By_hawkar_Fariq.pdf Source: https : //sdelaysam-svoimirukami.ru/? do = lastcommentsHow to make a PCB, you decide. It is not complicated and therefore it can easily be thrown on the breadboard. Well, or you can be fooled and done on the textolite with etching.