this is a simple battery charger with torch light
Step 1: Materials Required
torch with about 4v,below 6v battery
charger pin(it should be fit to the torch )
battery(AA ,AAA or mobile battery. but there are some battery is cannot be charged so you should be careful about it.
Step 2: Procedure
connect the pin to the torch. now scrape the two free end of the wire with the knife to see the copper wire.
Step 3: Battery
connect the two end of wire to the two terminal of battery . the positive end of wire should be connected to the positive terminal of battery. also negative to negative.
Step 4: Charger Is Ready
your torch charger is ready.
you can charge battery's below 4v fastly.