Converts power supply to automatic battery charger using SCR-CA723
This is how to modify old Lead-acid battery charger or convert power supply to battery charger in automatic. To protect over charging by CA723 and power SCR
Battery Chargers
Battery full charge alarm circuit
The Battery full charge alarm circuit for a general battery charger. It is simplified circuit and cheap, use one transistor BC557 and display with 2 LED.
Make cheap 6V battery charger circuit from a mobile charger
Modify cheap mobile phone charger inside is simple DC switching regulator circuit and can apply many ways, such as DC power supply
Simple nicad battery charger and discharger circuit
Nicad battery as the battery is good. Commonly used. If you do not have a battery charger. I recommend this is Simple nicad battery charger circuit. It is suitable for beginners.