Two 3500mAh 18650 Protected Orbtronic (Panasonic Inside) Li-ion Rechargeable 3.7V Batteries & Fast 2 Amp Battery Charger Charging KIT Updated New and Upgraded 18650 Charging kit from Orbtronic-Xtar. Charge Orbtronic 18650 at full 2 Amp speed. The fastest battery-charger Kit on the market. More about batteries - Protection: Over-current (Activated @ 10A-12A), Over-charge (Activated @ 4.35V) - Over-discharge (Activated @ 2.5V) - Over-temp. and DUAL short circuit protection (External, and Internal).Protection circuit designed by Seiko. ICs made in Japan. Charger: Smart-FAST li-ion charger features numerous safety features, and Bright Display: 4 charging speeds so charging is stable, safe, and accurate . Four Charging speeds (2A per channel, 1A, 500mA, 250mA) make this charger very unique. New Model: Xtar SV2 Unlike other batteries that will cut off power at 3-4 A, Orbtronic 18650 batteries will provide smooth 10A load. Double Protected 18650 Orbtronic 3500mAh Li-ion batteries (inside: Panasonic Industrial Battery Cell,). Core Battery: Panasonic, Capacity (Ah): 3.5 Ah (3500mAh), Charging Voltage (V): 4.2 V, Energy Density (Wh/L): 730 Wh/L, Nominal Voltage (V): 3.6V - 3.7V, Weight (g): 46 g, Diameter (mm): 18.6 mm (+/- 0.03), Length (mm): 68.9 mm (+/- 0.03)