GAOPAN UPS Lithium Battery Pack Expansion Board Power Supply with Acrylic Case for Raspberry Pi 3 Model B, B+,Pi 2 Model B & Pi 1 Model B+ A+ A

Features: ·Support UPS function, output DC5V while charging(will not be interrupted). ·With battery detection interface, always check the battery's power. ·The power-on state can automatically detect the load and start the output function, and automatically turn off the output when there is no load. ·The size and mounting holes are exactly the same as the Raspberry Pi for easier installation and use. ·It's convenient to power on / off raspberry pi via battery switch; ·It can last about 9 hours if only pi 3. ·The Lithium battery expansion board can be also used on cellphone. ·Battery capacity: 3800mAh ·Maximum output current: 2A ·Output voltage: 5.1V ± 0.1V ·Standard charging current / voltage: 2A/5.0V Package included:  1 x Lithium Battery Expansion board (with lithium battery)  3 x heat sink 4 x Gasket 8 x Copper standoff  12 x Screw  12 x Nut  1 x Micro USB cable  1 x Acrylic Case