【Specification】Voltage: 11.4V. Capacity: 48Wh 4212mAh. Battery Type: Li-ion. Condition: Brand new, from high quality materials, top circuit boards and smart chip. 【Replace Part Number】RU03XL HSTNN-LB8K HSTNN-IB8P HSTNN-UB7P L12717-171 L12717-1C1 L12717-421 L12717-541 L12791-855 RU03048XL. 【Compatible Laptop Models】Fit for HP ProBook x360 11 G3 / 11 G4/ 11 G5/ 11 G6 Series, HP ProBook x360 440 G1 Series. 【ANTIEE Promise】Everyone of our replacement batteries has tested with strict quality control standards to ensure the true capacity, stable current and low self-discharge. All ANTIEE batteries are UL / CE / FCC / RoHS Certified for safety, we are confident in the performance of the replacement battery. 【IMPORTANT NOTE】 If the new battery is not recognized during the initial installation, please reinstall and ensure interface is fully connected. Discharge the new battery to 5% --- 10% (not 0%), then charge and cycle 3-4 times to activate battery for optimal performance. For any product issues, please use Amazon's 'Ask a Question' feature to contact us for assistance ● Battery Model:RU03XL
● Voltage : 11.4V；
● Capacity : 48Wh 4212mAh；
● Battery type : Li-ion；
● Battery Condition :Brand New；
● Support: 24 x 7 Email support, Rest assured with 30 days Refund，12 months Replacement；
● Replacement for Part Number:
RU03XL HSTNN-LB8K HSTNN-IB8P HSTNN-UB7P L12717-171 L12717-1C1 L12717-421 L12717-541 L12791-855 RU03048XL

● Compatible Models:
Fit for HP ProBook x360 11 G3 Series
HP ProBook x360 11 G4 Series
HP ProBook x360 11 G5 Series
HP ProBook x360 11 G6 Series
HP ProBook x360 440 G1 Series