1200mAh Large Capacity: CHICNOD 9V rechargeable batteries made of lithium ion, it is made for multi-purpose use such as Smoke Alarms Toys Walkie-talkie ect. 1200mAh High Capacity, 8.4Voltage constantly output the current is slow to make it long lasting performance. We have 2 different color to help you differ the low power or full power so you won’t mix up. Rechargeable 9V Battery: It is very convenient as our 9V Battery pack don't need additional Charger, it comes USB cable which support fast charge within 2H(Charging cord is included), with the usb charging cable you can charge it with usb wall charger slot, usb power bank, usb b power output device like PC/laptop/outdoor charging station ect. It can recharge over 1000 cycles. Widely Use 9 Volt Battery: Rechargeable 9V batteries is good replacement for device powered by 9V sized batteries like Cordless Microphone, Multimeter, Smoke Alarm, Metal detector, Digital Camera, Radio Medical Device, please make sure the size is correct, it is square nine volt battery. Safety Gurantee: Lithium Batteries is made of Li-ion cells, it is leak-free, built-in chip to protect the battery from over-charge, short-circruit, over-heat, over-current protection. we use lithium ion instead of other material like reduce heavy metal pollution. Lithium ion 9v battery is made of lihtium ion it is lightweight. Customer Service: We have 12 month warranty for our customer. Buy with confidence, we will give you response within 24hours, please send us message if you have anything during use. This 9V is rechargeable batteries with charging cord and built in charging port, which is charger free batteries. This combo included with 2pack of CHICNOD 9Volt 1200mAh Lithium Batteries and a USB A charging cord. It is very convenient to carry to everywhere. The batteries is low self-discharge, it has no memory effect which improve low self-discharge makes the it remains 75% of battery capacity afte no use for a long time. With the USB Charging Cable，you can plug into any power source has USB Power output,such as power bank,power station, DC Wall Plug, Laptop or personal computer,ect. You can recharge it anywhere and it has no plug standard limit you can use it in global scope. This batteries can recharge up to 500 times, you can avoid to buy batteries to replace a lot , it will help to save your money and it is good to the environment, lithium metal cell 9 volt batteries could keep high performance in a wide temperature range from -40 °F to 140 °F, Don’t worry about the influence of the weather.