About the product [capacity] 18V|   Lithium ion. This ebm1830 alternative lithium ion battery has no memory effect, does not contain toxic and harmful substances, high current charge and discharge capacity, high energy density and long cycle life [replacement] Hitachi: bcl1815, bcl1830, bcl1840327730327331326240326241 [here is Hitachi's good backup battery] the long-lived battery has been improved at a reasonable price; Improve your work efficiency and save your time [smart choice of tools] make your old tools look new without buying expensive cordless tools again, so as to save you money [warranty] 30 days refund, 12 months warranty. 24 * 7 hours prompt customer service Product description "Ctrl + F" find your machine model / part number. Replacement part number: Hitachi: bcl1815, bcl1830, bcl1840327730327731326240326241 applicable to: Hitachi C series: C 18DL, C 18dlx, C 18dmr, c18dmr, Hitachi cj18dl, cjj18dl, cjj18d series: Cr 18DL, Cr 18dlx, Cr 18dmr, Cr 18dv, cr18dlp4 Hitachi DH series: DH 18DL, DH 18dlx, dh18dlp4 Hitachi DS Series: DS 18dfl, DS 18dflg, DS 18DL,  DS 3 18D 18DLP4   DV   18D 18D 18D 18D 18D 18D 18DL   18dcl, DV 18DL, DV 18dmr, DV 18dvks, dv18dlp4 Hitachi G Series: G 18DL, G 18dlx, g18dlp4 Hitachi RB series: RB 18DL, Rb 18dlp4 Hitachi UB series: UB 18DL, wh1r, wh18dl, whitachi series wh18dfl, wh18dlp4