Original Genuine DELL MR90Y Original Genuine Inspiron 17 5000 Series XCMRD N121Y Laptop Battery 15 3521 3543 3421 3542 3537 5721 5537 I3531 15R I5535 17-3721 17-5748 17-5749 17R-5737 17R-5721 17R-N3721 17R-N5721 in 1-unlocked-4g-lte-usb-modem-mifi-dongle-sim-card-150mbp

100% Brand new, Grade A cells battery;

Quality assurance;

• Every battery has passed factory testing, 500+ recharge cycles over the life of the battery.
• Every battery has passed strict intelligent detection, such as short circuit protection, over voltage protection, discharge protection, over current protection, which is very important for battery’s use cycle and safety. Built-in circuit protection ensure both safety and stability.
• All batteries are equipped with high quality material to ensure good performance. CE, FCC, RoHS certificated.
• For Optimal battery Use:
• Please install the battery correctly and ensure that the battery interface and the motherboard are firmly connected. Use Skills - If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected.
• If you install the battery and the laptop cannot detect the battery or the battery level cannot be displayed normally, check whether the battery cable was installed properly.
• Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to get the new battery a full capacity.
• The important point is to perform a full discharge charge every other month to extend battery life.
• Don't connect adapter for a long time while using the battery. It may damage the battery.
• Ad artificial shocks, disassembly, crush or puncture. Do not dispose of in fire or water.
• Ad using the battery in an environment where the temperature is too high or too low.
• Please use the original charger to charge the laptop.
• Connector - Before placing your order, Please open the back cover of the laptop to confirm the battery model and capacity, refer to the picture and check it. Because the products produced by different factories will have differences, such as size, cable length, interface, etc.

1x Original Dell MR90Y Battery.