Dual Bay USB Charger charges 1 or 2 batteries simultaneously from any USB power source. It is built with multiple circuit protection (over-charging, short-circuit, high-temperature, and surge protection), and high-quality, fire-resistant construction - Smart LED indicator shows charging status and prevents battery from overcharging. Convenient Charging Method: Common micro-USB input and the ability to charge with a USB wall charger, car charger, or external battery gives you more options than a standard battery charger, and Charges 1, or 2 LP-E12 batteries simultaneously and smart LED light turns to red when charging and green when complete. (Adapters and Power bank sold Separately). Memory free for maximum performance - Absolutely no memory effect so that you can charge battery at anytime - Super Long Time Recording 100% Safety Guarantee: Built with multiple circuit protection (over-charging, short-circuit, high-temperature, and surge protection), and high-quality, fire-resistant construction. Battery Specifications - Energy Storage Capacity: 1100 mAh /Voltage: 7.4 volts, WH: 8.1Wh Chemistry: Li-ion - New fully decoded chip works just like the original.(gives time left and does not need a special charger). LPE12 Li-ion Rechargeable Battery for Canon EOS-M, EOS M2, EOS M10, EOS M50, EOS M50 Mark II, EOS M100, EOS M200, SX70 HS, Rebel SL1 Digital Cameras.Item Weight: 1.7 Ounces. Battery Weight: 1.7 Ounces. Model Name: LP E12. Reusability: Rechargeable. Voltage: 7.4 Volts. Unit Count: 1 Count. Recommended Uses For Product: Camera. Battery Cell Composition: Lithium Ion. Brand: BM Premium. Number of Batteries: 2 Lithium Ion batteries required. Manufacturer: Big Mike's. Date First Available: October 24, 2012. Is Discontinued By Manufacturer: No. Best Sellers Rank: #12 in Camera Batteries. Customer Reviews: 4.6 out of 5 stars 5,408 ratings 4.6 out of 5 stars. Batteries: 2 Lithium Ion batteries required. Item model number: LPE12. : B01FV2A30S. Item Weight: 1.7 ounces. Package Dimensions: 7.24 x 4.06 x 1.68 inches.