POWERPART 1 x 10 Amp Power Unit -Transformer. The complete 12v power supply unit is a fully automatic supply direct to caravan appliances and has a electronically controlled battery charging. Charger Size: (H) 65mm x (W) 165mm x (D) 110mm Fitted in: Older UK Models & Adria (All Models) BCA part number: PS167-13.8-BC-R Also replaces older PS166-13.8-BCA versions.