PREMIUM QUALITY REPLACEMENT NOTEBOOK BATTERY: Bring your laptop back to life with Ninjabatt's high quality laptop battery - Made of high quality materials, top grade battery cells and packed with safety features.

TRUE CHARGING CAPACITY THAT LASTS: Every one of our replacement notebook batteries are tested to meet OEM specifications. Our 6 cells Li-ion battery is rated at 49wH/4400mAh/11.1V - true charge capacity that won't let you or your laptop down.

SAFETY FIRST: Don't fall into buying cheap and unsafe batteries, our batteries are UL/CE-/FCC-/RoHS certified for safety and packed with a variety of safety features, including short circuit, overheat, and overload protections.

HIGH QUALITY COMPONENTS & 12 MONTH WARRANTY: Our Laptop batteries are assembled from top quality material and circuit boards to ensure durability and performance. We only use grade A battery cells that provide up to 500 charging cycles. We're so confident in the performance of our replacement laptop batteries that we're including a 12-month warranty with every single purchase.

COMPATIBLE DELL PART NUMBERS & MODELS: 0MF69 | 24DRM | 312-1387 | 312-1433 | 451-12107 | 4DMNG | 4WY7C | FW1MN | MR90Y | N121Y | V8VNT | XCMRD | Inspiron 14R 5437 | 15 3521 | 15 3531 | 15 3537 | 15 3541 | 15 3542 | 15 5521 | 15 N3521 | 15R 3521 | 15R 5521 | 15R 5537 | 15R N3521 | 17 3721 | 17 3737 | 17 5721 | 17 N3721 | 17 N5721 | 17R 3721 | 17R 5721 | 17R 5737 | 17R N3721 | 17R N5721 | 3421 | 3521 | 3531 | 3721 | 5421 | 5521 | M531R-5535 | Latitude 3204 | 3440 | 3540 | Vostro 2421 | 2521