Dewalt Power Tools DCB118 XR FlexVolt Multi-Voltage Fast Charger 18/54V Li-ion S7-23 so the choice is yours

so the choice is yours

Length: 28mm

With the same basic specification as the 400x400 MPK Rooflight

Coleman wind strong system & taped seams increases waterproofness

Reinforced sewing points

Dewalt Power Tools DCB118 XR FlexVolt Multi-Voltage Fast Charger 18/54V Li-ion S7-23 so the choice is yoursThe DEWALT DCB118 FlexVolt XR Fast Charger will charge 54 Volt FlexVolt and 18 Volt XR batteries. A bright LED indicator communicates battery charge status: charged, charging, power problem, and battery too hot or too cold conditions. It has a compact design which is wall mountable and is fan cooled so it can charge efficiently between 4C and 40C.