- I bought this little generator after being frustrated with my old flashlight. In 2020 we had a power outage of over 12 hours and our batteries were dead. Stores were closed due to power outages, and the cost of giant batteries was too high. The price for this USB charging flashlight was great. It's light and easy to hold. It charges quickly via a small cable and has a nice setup.I don't think it will hold the same charge for 3 days of active use, but once it's charged and accessible, it's a great way to light the way. It makes a great household tool. I ordered a larger USB rechargeable flashlight from Temu that is about 10 inches long and the light has a 3 inch circumference. I'll compare the two, but I think this one is the prettiest.