Painless 250 Amp Waterproof Dual Battery Current Control System.

Painless 250 AMP weatherproof dual battery controller includes a three position switch to control the second battery through the operation of the solenoid. Switch position one isolates the second battery. Position two connects the battery while the ignition is on. Position three connect the second battery at all times. Kit includes solenoid, switch, pre-terminated wire/connectors, fuse holder, fuse and mounting hardware.