This is a charger and AC adapter for Tamiya's Lithium Ferrite battery LF-6.6V. It's used for Tamiya LF1100-6.6V Racing Packs, etc. I'm selling it because another charger worked fine for me. It's practically new, having only been used a few times to confirm its operation. ===The following is an explanation from Tamiya's website=== This is an AC charger for Tamiya LF-6.6V batteries. It consists of an AC power adapter and a charger. It uses a household AC outlet (AC100V) as its power source, and charging is safe and reliable with a simple operation of turning the charging switch ON. You can check the charging status with the LED lights. It also has safety features such as abnormal voltage detection and monitoring of charging time with a timer, protecting the main unit and the battery. The LF2200-6.6V Racing Pack can be charged in about 70 minutes, and the LF1100-6.6V Racing Pack (M size) can be charged in about 35 minutes. === Type...Radio Control Manufacturer...Tamiya Type...RC Parts Radio Control...RC Limited Parts