We focus on providing high quality batteries and related accessories. This 100% brand new Dell MR90Y battery is designed for long-lasting and stable performance. The battery for Dell Inspiron 3421 5421 15-3521 5521 3721 provides a one-year warranty, faster delivery and thoughtful after-sales service.
5200mah(LG CELL)/6 Cells MR90Y Replacement Battery for Dell Inspiron 3421 5421 15-3521 5521 3721
Product Specifications
Brand: Dell
Battery Type: Li-ion
Battery Voltage: 11.1V
Battery Capacity: 5200mah(LG CELL)/6 Cells
Warranty: 30 Days Money Back, 1 Year Warranty.
Over 500-800 times of charge and discharge.
Compatible Part Numbers:
Compatible Models:
Dell Inspiron 14 Series
Dell Inspiron 14-3421 Series
Dell Inspiron 14-3437 Series
Dell Inspiron 14-5421 Series
Dell Inspiron 14-N3421 Series
Dell Inspiron 14-N5421 Series
Dell Inspiron 14R Series
Dell Inspiron 14R-3421 Series
Dell Inspiron 14R-5437 Series
Dell Inspiron 15 Series
Dell Inspiron 15-3521 Series
Dell Inspiron 15-3537 Series
Dell Inspiron 15R Series
Dell Inspiron 15R-5521 Series
Dell Inspiron 15R-5537 Series
Dell Inspiron 15R-N3521 Series
Dell Inspiron 15R-N5521 Series
Dell Inspiron 15R-N5537 Series
Dell Inspiron 17 Series
Dell Inspiron 17-3721 Series
Dell Inspiron 17-3737 Series
Dell Inspiron 17R Series
Dell Inspiron 17R-5737 Series
Dell Inspiron 17R-N3721 Series
Dell Inspiron 17R-N3737 Series
Dell Inspiron 17R-N5721 Series
Dell Inspiron 17R-N5737 Series
Dell Latitude 14 3000 Series
Dell Latitude 15 3000 Series
Dell Latitude 3440 Series
Dell Latitude 3540 Series
Dell Latitude E3440 Series
Dell Latitude E3540 Series
Dell Vostro 2421 Series
Dell Vostro 2521 Series
Follow the notice below, Better using your Dell MR90Y Battery
1.Storage - Store your Dell MR90Y Battery in a clean, dry, cool place away from heat and metal objects. The Lenovo L18C3PD2 batteries will self-discharge during storage; remember stored at about 40% state-of-charge.
2.Charge and discharge - For lithium ion batteries, you do not need to discharge them fully and recharge constantly. You need to do a full discharge only about every 30 charges. Do not charged to higher voltages than its threshold voltage.
3.Exercise Your MR90Y Battery - Do not leave your batteries dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a battery has not been used for a long period of time, perform the new battery break in procedure described above.
4.Calibrate Your batteries - If your Battery's 76% even less in work , you must fully charge, fully discharge, and then fully recharge the Laptop Battery pack.
5.Consider removing the MR90Y battery from a laptop when running on fixed power.
6.Do not short-circuit. A short-circuit may cause severe damage to the battery.
7.Avoid propping your laptop on a pillow, blanket, or other soft surface that can heat up. Your Dell MR90Y battery is a lot less efficient when not within its standard operating temperature range.
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