NinjaBatt Laptop Battery for Acer UM09H31 UM09H36 UM09H41 UM09H51 UM09H71 UM09G31 UM09G41 UM09G51 Aspire 532H NAV50 UM09H70 UM09H75 UM09G75 [6 Cells/4400mAh/48Wh] 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 48wH/4400mAh/10.8V - true charge capacity that wont let you or your laptop down. SAFETY FIRST: Dont 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: Our Laptop batteries are assembled from top quality material and circuit boards to ensure durability and performance, our batteries are equipped with grade A battery cells that provide up to 500 charging cycles. 12-MONTH WARRANTY AVAILABLE ON ALL LAPTOP BATTERIES: Were so confident in the performance of our replacement laptop batteries that were including a 12-month warranty with every single purchase. Reliable performance Extended battery life Safe use anytime, anywhere