Welcome to TCOREs store! We have concentrated on laptop battery production for more than twenty years. We promise that our batteries are sold directly from the factory to the customers. You can use it safely.Specifications:Model: 4GVGHVoltage: 11.4VCapacity: 84Wh / 7360mAhBattery Type: 6 Cells Lithium-ionBattery Condition: 100% Brand New, Black with two Free ScrewdriversAfter-sale Service: 30 Days Free Trial and 24 Months warrantyCompatible Part Numbers:4GVGH 04GVGH 1P6KD 01P6KD T453X 0T453XP56F P56F001 451-BBUXCompatible Laptop Models:Dell XPS 15 9550 XPS9550 SeriesDell Precision 5510 SeriesDell XPS 15-9550-D1828TSHOPPING INFORMATION: ( TIPS ON HOW TO CHOOSE THE CORRECT BATTERY )1. This 4GVGH battery is only an universal replacement of 84Wh 11.4V battery, if your original battery is not 84Wh 11.4V, it cannot replace it. Please remove your laptop battery cover and find out the detail power and voltage of your original battery. Obviously, it is NOT compatible with the 56Wh 11.4V battery.2. The 84wh 4GVGH battery is only compatible with the SSD version of the computer, not compatible with the HDD version of the computer.3. The DELL XPS 9550 notebook has two battery models: 4GVGH and RRCGW. Due to the size of the battery, they cannot replace each other! ! ! Please double check the power and voltage of your original battery, if it is not 84Wh 11.4V, please do not buy it. Hope this is understandable to you.KINDLY NOTE:30 Days no-questions-asked FULL MONEY BACK24 Months Free Exchange Guarantee7╫24 E-mail ServiceAny problem, feel free to ASK A QUESTION, we will always be here for you.