We have featured many nice portable power bank, but if you prefer multi functional options, the LumiVolt backup battery with built-in flashlight may be more suitable for you.
This is a versatile portable power bank that measures 1″ square x 3-3/4″ long and weights 2-1/2 oz. As we can see from the images, the backup battery features ultra portable and ergonomic design, and comes with a 2000mAh backup battery in order that you can use it to charge your iPhone or Android phone when you’re on the go, moreover, the backup battery also features a built-in LED flashlight for some emergencies, apart from that, the LED indicator shows you the status of the backup battery, and it can be recharged in less than an hour.
The LumiVolt backup battery with flashlight is priced at $19.99 USD. If you’re interested, jump to ThinkGeek for more details. Additionally, if you need other options you might like to check the lightsaber backup battery and more via “backup battery” tag.