Constant Voltage Current Limited Charger

Constant Voltage Current Limited Charger
This 12v lead acid battery charger circuit based Regulator IC LM723C.  The lead acid battery charger circuit can provide 12 V output voltage at 0.42 A maximum current. This battery charger circuit is design for 12 V Lead Acid battery. (more…)

Charger for All Battery Types

Charger for All Battery Types
Note that the stability is observed when the load current and will change slightly of the supply voltage. Likewise, the fact is usually overlooked, but if you want a perfect stability - stabilize the power supply. Calculation of the current is very simple - the current in amperes is equal to 1.2 divided by the resistance R1 in Ohms. To display the current used transistor (germanium necessarily because of the low voltage opening) that allows you to visually observe

12 Volt Battery charger

12 Volt Battery charger
The following schematic is a high-performance battery charger for gelled electrolyte lead acid battery. Battery charger quickly recharges lead acid battery  and shuts off at a full charge. Innitially, charging current has limitations to 2 Ampere. While the battery voltage goes up, current to the lead acid battery  decrease, and if the current has decrease to 150 mA, the battery charger changes to a lower float voltage protecting against overcharge. (more…)

Simple 12 Volt Battery charger

Simple 12 Volt Battery charger
This kind of battery charger circuit will quickly and easily recharge almost every lead acid battery pack.This battery charger supplies maximum current till the current drawn by the battery falls to 150 miliamper. At this point, less voltage will be applied to complete and avoid over charging. Once the lead acid battery is completely charged, this circuit goes off and lights up the led, showing that the battery has completed to be charged. A suitable heat sink should be