SUNNEAR 9NJM1 Laptop Battery for Dell Alienware 15 R3 R4 17 R4 R5 Series Dell ALW17C Series 0546FF 0HF250 44T2R HF250 MG2YH 0MG2YH, Dell P31E P69F Series 11.4V 3-Cell About this item ?Specifications?Model: 9NJM1 Voltage: 11.4V Capacity: 99Wh/8820mAh Battery type: Li-ion. Battery life: Up to 501 recharge cycles over the life of the battery. Also comes with installation tools ?Compatible Laptop/Notebook Models? for Dell Alienware 15 R3 R4 Series, 17 R4 R5 Series Notebook, Dell P31E P69F Series(P31E001, P31E002, P69F, P69F001, P69F002 Series), Dell ALW17C Series. (Dell ALW17C-D1738 ALW17C-D1748 ALW17C-D1758 ALW17C-D1848 ALW17C-D2738 ALW17C-D2748 ALW17C-D2758 ALW17C-R1748 Series) ?Compatible Part Number? 9NJM1 MG2YH 0MG2YH 01D82 HF250 ?Purchasing Note?: Due to the complexity of laptop battery models, you may not be able to accurately determine the model you need to purchase,Please open the back cover of the laptop to confirm the original battery model number ?Tips?If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected. Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery ?Customer Service? ?24 x 7 email support. If you have any problem with battery, please Contact us - in ?YOUR ORDER? options click the ?contact seller?? 30 days return and 12 months Warrant Product Description Please read before purchasing Please open your laptop case, check and confirm your original battery model and appearance, compared with our battery image, make sure that's what you need. Especially the location of the connector and the cable length (long or short). Battery Specification: Models:9NJM1 Voltage:11.4V Capacity:99Wh/8820mAh Battery Type:Li-ion Battery Condition:Brand New Compatible Part Number: 9NJM1 0546FF 0HF250 44T2R 01D82 HF250 MG2YH Replacement for Dell Alienware 15 R3 R4 Series, 17 R4 R5 Series Notebook, Dell P31E P69F Series(P31E001, P31E002, P69F, P69F001, P69F002 Series), Dell ALW17C Series. (Dell ALW17C-D1738 ALW17C-D1748 ALW17C-D1758 ALW17C-D1848 ALW17C-D2738 ALW17C-D2748 ALW17C-D2758 ALW17C-R1748 Series) Battery Maintenance Methods for Optimal Use When you get the new battery, discharge the battery to 5% (not 0%), then charge to 95%, cycle 3-4 times to wake up the new battery. The important point is to perform a full discharge and charge every other month to extend the battery life. Do not connect adapter for a long time while using the battery. It may damage the battery. Avoid artificial shocks, disassembly, crush or puncture. Do not dispose of it in fire or water. Why should l choose SUNNEAR battery? Brand new from manufacturer. Tested with strict quality control standards up to 600 rechargeable recycles Grade A cells ensure High capacity and smart chip ensure low power consumption CE / FCC / RoHS certified for safety and stability Troubleshooting Methods Could be caused by battery loose. Please remove the battery and try to install more than once. May be due to conductive material damaged which the laptop motherboard and battery anode and cathode contact position, you can try to confirm it with your original battery. Check whether the battery drive is in normal condition, if not, download the corresponding driver software to update. Take out the battery and press the power button for about 15 seconds to consume the internal residual power (Do not connect the power cord), and then reinstall the battery. You can try several times.