Amazon.com: [1Pack] 18V 5.0Ah High Power Battery for Hitachi Power Tools Fit BCL1815 BCL1820 BCL1825 BCL1830 BCL1840 EBM1830 327730 327731 18-Volt Battery : Tools & Home Improvement
Bcl1815 18volts 2ah for Hitachi Li-ion Battery - China Hikoki Replacement Battery, Hikoki 18V Battery Pack | Made-in-China.com