VX CT Battery Multifunction Charger for DS Dsi With this Multifunction Battery charger for DS DSi, there isn t an excuse for your DS or DSi battery to run out of power. The charger contains a charging chamber that houses either a DS or DSi battery. You can charge it in your vehicle via the 12V charger cigarette lighter or with your conventional power outlet in your home through the AC adaptor. Use the retractable USB DSDSi charging cable to charge your device to the multifunction battery charger or connect it to your computer via the USB cable. So whether you are on the road, in your office, or at home you can charge your DS or DSi without ever experiencing interrupted game play due to a dead battery.