High Performance Lithium Ion Main Battery Pack for WinBook WinBook M Series M203 OEM Part # equivalent: 40004852, 442673400003, 442673400008, 442673400015, 442673400016, 442673400027, 442673400029, 442674600002, 442679900001, 442679900002, 442679900003, 442679900004, 442679900007, 442680700001, 821561, CGR-B/T19SE-MSL, NBP001310-00, WN-M |