The Weller 4.5 W soldering iron kit works with batteries. It includes an iron, a tip, three AA batteries, a lead free solder and a tip wrench. It heats up to the working temperature of 900°F in under 30 seconds, and its red LED indicates when power is on. The protective safety cap turns off power when placed on tool. Perfect for field service repair on small parts and components, it can do over 120 intermittent solder joints with fresh batteries. The kit is covered by a limited lifetime.