About Anker® Anker® offers diverse consumer tech solutions including batteries, adapters, networking devices, and more. We are passionate about excellence so that with every Anker brand purchase, you can expect to find quality materials, reliable performance, affordable prices, and great customer service! And thanks to our customers, now the Amazon first 10 top rated laptop batteries are from Anker! Compatible Models Note: ONLY for Laptops of 14.1" standard, 15.0" standard screen and 15.4" widescreen. NOT for 14" widescreen. Lenovo Thinkpad SL400 / SL300 / SL500 / SL500C / Z60M / Z61M / Z61P / Z60 / Z61E / Z61 T60 / T60P / T61 / T61P / T500 / W500 R60 / R61 / R61I / R61E / R60E / R500 Compatible Part Numbers 40Y6797 / 40Y6799 / 42T4504 / 92P1141 / 42T4619 / 92P1133 / 92P1132 / 92P1139 / 92P1137 / 92P1142 / 92P1131 / 92P1138 / 42T4621 / 42T4777 / 92P1106 / 40Y6795 / 42T4513 / 42T4623 / 42T5245 / 42T5246 / 40Y6789 / 42T4566 / 42T4569 / 42T5233 / 92P1140 / 92P1134 / 43R9250 / 40Y6790 / 42T4545 / 43R9250 / 40Y6790 / 42T4545 / 42T4544 / 92P1127 / 41N5666 / 42T4546 / 42T4622 / 92P1128 / 92P1129 Buy with confidence! 18-Month Warranty Ship next business day 24 x 7 Email Support 8-hr x 5-weekday Call Support