Making A Solar Panel Trickle Charger For Aa Batteries

Hi everyone i am back again with this new tutorial in this tutorial i am going to show you how to charge a lithium 18650 cell using tp4056 chip utilizing the solar energy or simply the sun.

Making a solar panel trickle charger for aa batteries.

Diy solar battery charger. If you re like me and you like to spend a lot of time in the backcountry this means you don t have any way to charge you devices. You could buy a solar powered battery charger but it s cheaper and more fun to make one yourself. I also have solar charger that clips on a backpack and a small panel i hooked up to trickle charge a 12 volt battery that i can use to charge all types of equipment.

Build a simple solar powered battery charger for ni mh batteries. To charge a battery with a solar panel connect a charge connector to the solar panel. Dollar store tupperware with built in o ring aa battery holder radio shack also fits aaas if you re careful one or two solar panels rated 4 volts or above blocking diode tools you need soldering iron solder tape safety goggles some wire time. I use rechargeable aa aaa for headlamps and led flashlights.

Divide the wattage of the solar panel by the voltage of the battery to get the number of amps your charge connector needs to handle. To build a solar battery charger you need several things as well as have several tools on hand. The circuit of a simple lm338 solar battery charger is shown below using the ic lm338.