JMALL 1000 Meter Long Beam 3 Mode Waterproof LED Rechargeable Outdoor Lamp Search Light 40W Flashlight Torch Emergency Light 2200 mAh Battery 40W Torch  (Green, 20 cm, Rechargeable)

It boasts a Li-ion battery that you can charge using a micro USB cable or a 5-volt micro USB charger. This battery offers a lighting time of about 6 hours on a single full charge. Also, you will know when this torch’s charging process is complete when its LED indicator turns to green from red. It even features overcharge protection so that it doesn’t get damaged even if you leave it to charge for a little too long.