Union Link Universal & Reliable 5S - 10S 1A/2A NiMH/NiCD Smart Battery Pack Charger (6.0V-12V) Two fast charging options for battery packs: Select between 1 Amp or 2 Amp charging current depending on how fast you need to charge your battery packs. 1A recommended for 1000-1800mAh packs. 2A recommended for any pack over 2000mAh. Universal, smart battery pack charger with voltage detection: automatically detects what voltage your battery pack is and charge it. Charge your NiMH or NiCd battery packs that are 6V, 7.2V, 8.4V, 9.6V, 10.8V, 12V. 5S to 10S battery packs can be charged. Easy to read LED Lights: Know the current charging status when charging with the LED light. Green = Fully Charged. Red = Charging. Safe charger: Meets rigorous UL 60950-1 safety standards. Comes with temperature sensor to prevent over-heating while charging. 1 Charger for Multiple Hobby Battery Packs: Use this charger with your NiMh NiCd battery packs for Airsoft, RC Cars, RC toys. Comes with Standard Size Tamiya connector, Standard to Mini Tamiya adapter, Standard Tamiya to Alligator Clips adapter.