12V Outboard Dual Battery Kit with ACR Isolator — Starting & House Battery

ever get stranded with a dead cranking battery. The RCE12VBM6IK uses an automatic charging relay (ACR) to let your outboard charge both the starting and house batteries, then isolates them so electronics and accessories can't drain the battery you need to start the engine.

Your starting battery is the one you can't afford to lose. Connect-Ease outboard and starting kits use heavy-gauge marine wire and patented plug-and-play connectors so the engine circuit stays secure, accessories stay organized, and the battery comes out in seconds for charging or winterizing.

Compatible electronics and accessories: Fish finders, GPS, VHF radios, bilge pumps, livewell pumps, LED lighting, USB chargers and shallow-water anchors; Humminbird HELIX, SOLIX, APEX and MEGA Live 2; Garmin ECHOMAP UHD2, GPSMAP and LiveScope Plus / XR (GLS 10 black box); Lowrance HDS PRO, HDS Live, Elite FS and ActiveTarget 2; Raymarine Axiom and Element.

System voltage: 12V (dual battery). Recommended batteries: 12V starting battery + 12V deep-cycle AGM or LiFePO4 house battery. Amperage and protection: 6 AWG; fuse each circuit per ABYC and device maker.

Protect your starting battery while powering all your electronics all day. This dual battery kit with Automatic Charging Relay (ACR) isolates your starting battery from your house battery — so high-draw outboards (300HP+) always have full, clean voltage to start, while electronics, livewells, and bilge pumps run off the secondary battery.

• Wire: 6 AWG leads on both ends; 8 AWG accessory connector
• Feature: ACR isolator — batteries draw independently but charge together off the alternator or charger
• Accessory Port: 8 AWG connector; add RCE12VB4 for console electronics
• Rating: 60–240A DC / UL1977
• Compatibility: AGM and lithium battery compatible
• Patent No.: 9,559,473 / 9,866,047

• Automatic charging relay (ACR) isolator
• Separate starting and house batteries
• 6 AWG plug-and-play connections
• Accessory connections for house loads
• Lithium compatible (verify ACR settings for lithium house banks)

Compatible Fish Finder:

• Fish finders
• GPS
• VHF radios
• bilge pumps
• livewell pumps
• LED lighting
• USB chargers and shallow-water anchors
• Humminbird HELIX
• SOLIX
• APEX and MEGA Live 2
• Garmin ECHOMAP UHD2
• GPSMAP and LiveScope Plus / XR (GLS 10 black box)
• Lowrance HDS PRO
• HDS Live
• Elite FS and ActiveTarget 2
• Raymarine Axiom and Element

Recommended Voltage/ Amperage/ Fuse/ Breaker:

12V (dual battery), 6 AWG; fuse each circuit per ABYC and device maker

Battery Types:

12V starting battery + 12V deep-cycle AGM or LiFePO4 house battery

FAQ: What does the ACR do?

A: It combines batteries for charging while the engine runs, then separates them so house loads can't drain your starting battery.

FAQ: Can my house battery be lithium?

A: Yes. Confirm your outboard's charging output and use a DC-DC charger if your engine maker recommends it for lithium.

dual battery kit with ACR, automatic charging relay boat; battery isolator kit outboard; starting and house battery wiring