UPS Power Module for with 5V Uninterruptible Power Supply Multi Battery Protection Circuits（without Battery) uninterruptible power supplyFeatures:On board battery protection circuit, anti overcharge, anti over discharge, anti overcurrent, anti short circuit and anti reverse connection, balanced charging, stable and safer On board warning convenient to check whether the battery is connected reversely.Onboard 5V voltage stabilizing chip, which can output current continuously up to 5A, can give raspberry pie or provide sufficient power.Provide complete supporting information manual.The parameters such as battery voltage, current, power and residual power can be measured through I2C interface communication,Real time detection of the working of the module.Various interfaces are led out through wire, which is convenient for integration into trolley design and industrial control equipment.brand new and Specifications: Battery voltage: 5V5A: 3.3V300mAControl interface: I2CBattery specification: 2600mAh 18650 lithium battery (in series)Charging power supply: 12.6V2ASize: approx. 60x93mmThrough hole diameter: 3.0mmPackage Includes:1 x UPS Battery Backup （without 18650 Battery）Note:The UPS Module without 18650 Battery!!!Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!