It can charge any size of the Gel cell batteries and extend the life of the Gel Cell battery. While the circuit is running, the LED indicates charging.
Modify cheap mobile phone charger inside is simple DC switching regulator circuit and can apply many ways, such as DC power supply
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.
This is simple 1.2V AA battery Solar charger circuit. If you want to charge only one 1.5V AA battery and must used at outdoor that don't has home electricity. We…
The project is the NiMH battery charger circuit on automatically shut off when fully charged. Can charge batteries 1-10 pcs. Depending on the input voltage [...]