The battery delivers 4.0Ah of runtime at 36V in MultiVolt tools. It can also power Hitachi or Metabo HPT 18V cordless tools including cordless nailers for increased flexibility and multipurpose use. When a MultiVolt battery is used with an 18V tool, it generates an impressive 8.0Ah of run time. Continue using your Hitachi or Metabo HPT 18V tools and experience a longer battery life, thanks to MultiVolt battery innovation.