Welcome to OUWEE
Before placing your order, we highly suggest you to open the back case of your latptop and check out the exact part number of your laptop's original battery.

1.Battery Type: Rechargeable Li-ion Battery
2.Model: RU03XL
3.Voltage: 11.4V
4.Capatity: 48Wh 4212mAh
5.Connector: Please refer to the picture and check it.
6.Certificate: CE,RoHS,FCC，100% New from Manufacturer, Grade A Cell
7.Worry-Free Warranty:
At OUWEE, we believe in our battery. That's why we back them all with an 12-month warranty and provide friendly customer service, easy-to-reach support.

8.Replacement for Part Number:
HSTNN-LB8K HSTNN-IB8P HSTNN-UB7P L12717-171 L12717-1C1 L12717-421 L12717-541 L12791-855 RU03048XL RU03XL

9.Compatible Models (use "Ctrl+F to find your model quickly")
Fit for HP ProBook x360 11 G3 Series
Fit for HP ProBook x360 11 G4 Series
Fit for HP ProBook x360 11 G5 Series
Fit for HP ProBook x360 11 G6 Serie
Fit for HP ProBook x360 440 G1 Series
Not all models are listed,please check the part number of your original battery.

10.Package included:
1X RU03XL Battery.

11.For Optimal Use battery:
①Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery.
②The important point is to perform a full discharge charge every other month to extend battery life.
③Don't connect adapter for a long time while using the battery. It may damage the battery.
④Avoid artificial shocks, disassembly, crush or puncture. Do not dispose of in fire or water.
⑤Avoid using the battery in an environment where the temperature is too high or too low.