The Duratrax Onyx 150 AC/DC Balancing LiPo Charger is designed for balanced charging 1S to 3S LiPo packs. A built-in power supply makes it easy to take it along while the charger features switch-selectable charging rates, a tri-color status LED and it also includes a balancing port for balancing and charging 3S packs, plus an adapter for 2S packs and it comes with Deans and Traxxas TRX-type battery connectors.

Source: Duratrax [duratrax.com]