SAFETY: 40Wh M5Y1K laptop batteries have 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. All batteries are equipped with high quality material to ensure good performance. CE, FCC, RoHS certificated.
Perfect After-sale: 24H E-mail Support, 30 Days No-Reason return, 12 Months Warranty.If you have any questions and help, welcome contact us by Email. Thanks for your kindly support and understand.(Please check your laptop model and buy it with confidence!)