This battery charger circuit differs from the norm in a number of ways, all of which make it difficult to understand. For this reason, I do not recommend it for the beginner. Repairing /revamping a ...

Every car owner has, at some point in their vehicle ownership journey, dealt with a drained battery. If you haven't, consider yourself lucky. You might have left your car at a shop, gone on vacation, ...

[Glenn] from The Back Shed has built a lot of windmills and stationary generators over the years, but recently decided to try his hand at building something a bit more portable. The charger is based ...

This is the circuit of a simple 12 volt battery charger for Lead Acid battery. It gives 12 volt and 5 Amps current for quick charging of the battery. If the battery is partially discharged, full ...

This article was updated with new information in December 2025. A vehicle’s performance starts–no pun intended–with its power source, making battery care one of the most important—yet ...