Dear friend, Good day ! This is cindy from BND-battery, we specialized in Laptop Batteries & Power Banks for mobile phone/pc manufacturing.300 workers ,5000 non-dust m .Grade A cells + Low RMA + Prices down !!! I call me,let's talk more ! Technical info.& Prices will be sent on request. Your early reply will be high appreciated.Thanks and Regards cindy jia Shenzhen Binengda Electronic Co.,Ltd . Sales & Marketing Dept.cindy