Not Sponsored. DCB installs two 48V 96Ah Lithium Iron Phosphate deep cycle batteries into a Duffy 22. Sixteen 6V flooded lead acid batteries are removed. The job took two technicians approx 7 hours to finish the job. A Victron 48V to 12V DC-DC converter was installed to operate the 12V accessories. A new Dakota 15A charger was installed because the original Delta Q charger (with built in DC-DC converter) was non operational. Labor varies on boat. Link to Duffy Boat battery replacement service in San Diego @DCB https://deepcyclebatterystore.com/collections/services-by-deep-cycle-battery-san-diego/products/duffy-boat-battery-installation Questions: sandiegosolarandgolf@gmail.com We are in San Diego - thanks for watching