Amazon.com : Shentec 2-Pack 3000mAh 18 Volt Battery Compatible with Hitachi 339782 BSL1830C BSL1815X BSL1815S BSL1830 330139 330557 (18V Lithium Battery) : Tools & Home Improvement
Joiry 18V 3Ah Lithium Ion Battery and Charger for Hitachi 330139 330557 339782 BSL1815X BSL1815S BSL1830C Slide-on Style Batteries - - Amazon.com
Amazon.com: 18V Battery Adapter for Hitachi to for Makita Lithium Battery, DC DC 18V Battery Converter for Electric Tools, No Need Buy One More Battery : Tools & Home Improvement