


P/N 40102 $149.99
250 Amp Dual Battery Control System
Our 250 AMP dual battery controller includes a three position switch to control the second battery through the operation of the solenoid.
- Switch position one isolates the auxiliary battery. No light.
- Position two connects the auxiliary battery while the ignition is on. Green light.
- Position three connects the auxiliary battery at all times. Red light.
Kit includes solenoid, toggle switch, pre-terminated wire/connectors, fuse holder, fuse and mounting hardware.
Note: Solenoid draw is 2.5 AMP while engaged. If left engaged (batterys connected) with vehicle not running it will drain the battery.
Prop 65 Warning

Link to P/N: https://www.painlessperformance.com/wc/40102
Need battery cables? Part #40100 is perfect for a front mount battery. Part #40105 is perfect for a remote mount battery.
Have two auxiliary batteries? Use the 40102 and an add on solenoid kit part #40112 to control them.
NOTE: For applications in which the system may be exposed to the elements, such as marine, use our weatherproof kit #40103.