Replacement notebook battery for LENOVO T-Pad T410 T410i T420 T420i T510 T520 T520i W510 W520 L series SL410 SL420 Edge E40 E50 14 15 replaces 0A36302 51J0499 51J0500 42T4790 42T4791 42T4794 25+ 55 55+ 70+ Specs Lithium Ion 6-cell 10.8V 5200mAh 56Wh