UC18YGSL Hitachi UC18YGSL AC Charger 14.4 V DC, 18 V DC
Amazon.com: for Makita 18V Battery Adapter Convert to for Hitachi 18V Lithium Cordless Tool and for Metabo18V (Not 36V) Slide Style Tools : Tools & Home Improvement
14.4 18V 20V(Max) 4.5A Lithium Battery Charger For Hitachi Li-ion battery BSL1415 BSL1420 BSL1430 BSL1820 BSL1830 fast charging - AliExpress
Hitachi 18V or 14.4V tool Battery PCB circuit board – LLT POWER ELECTRONIC