This product is a lithium battery inverter, which can convert direct current into alternating current with stable output.Applicable scenarios are camping and outings for outdoor work.The most difficult thing in outdoor camping outings is to charge the small household appliances that you bring. This product solves the biggest problem of camping outings. Outdoor charging.Dual USB can charge your two mobile phones at the same time, the inverter socket design can charge your notebook, razor, lights, small fans, etc.For Craftsman C3 19.2Volt Lithium ion Battery : 130279005 1323903 130211004 etc.Work for Craftsman Ni-Mh 19.2V Batteries,turns for Craftsman batteries into small generators.Portable Power Source.Replace car power inverter ,for craftsman 19.2 battery replacement1. Insert for Craftsman C3 19.2Volt battery into the power supply correctly.2. Press White button for 0.5s to turn on the power supply, then you can use USB and 110V AC output port for devices' charging.3. The Red button is light control and there're 2 levels of brightness.4. When finished, turn off the power supply, disconnect your devices and remove batterypack.Material: plasticcolour: redPackage Contents:1 x Powered Inverter GeneratorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.