Can I Charge 12v Battery With 5v Charger. They are very cheap and will take 4V to 35V input and give you between 3V and 35V output at up to 3A. Those batteries need close to 14v for a full charge.
A 12v regulated power supply wont fully charge a 12v Lead-acid battery. Yes you can but you will have to add a circuit depending on the type of batteries you use. The laptop charger is a bad idea not just because it will be very slow but because it doesnt know when to stop charging which will damage the battery.
A lead-acid battery actually requires at least 132V to charge and an intelligent charger may use up to 145V during some parts of the charging cycle.
The battery I had been using doesnt seem to keep a charge very long. The charge circuits for these batteries are very different and over-charging a lithium battery can be catastrophicto the battery anyways. How to Convert Your 5 Volt Mobile Phone Charger into 12V Battery Charger at Home Easy WayHello friends aaj ki is video me hum ek 12volt dc supply or charge. It may well be that the reason you cant find your 36V charger is because there never was one.
