Anybatt 11-U1-1387 4400mAh Samsung R540, R530, NP300V5A, NP355V5C, R525, NP350V5C, NP300E5C, NP300E5A, R520, RC530, R730, RV520, NP305V5A, RV515, R425, R519, R528, R420, R440, NP300E7A, R580, RV511, NP350E5C, R430, RV508