Note:This is not a charger, it only outputs battery voltage and power directly from your battery. All adapters now made in outdoor heat and chemical resistant material 3/22/2021 New 10AWG version V4, new power terminals 3/22/2021 Now made with marine grade tinned copper UL rated wires 3/22/2021 Wire lengths increased from 10in to 12in Includes 1 black 40V Ryobi battery adapter Adapter. This battery adapter/cover has been tested to work with 40V Ryobi lithium-ion batteries.