12V Parallel Battery Connection Kit — Dual Battery Power for Boats & Marine Applications

Need more run time from a 12V trolling motor or house system? The RCE12VBPK wires two 12V batteries in parallel — positive to positive, negative to negative — so you keep 12 volts while doubling amp-hours. Connect-Ease plug-and-play connectors make it impossible to cross-wire and let you remove either battery without tools.

Connect-Ease's patented, self-cleaning, positive-lock connectors replace wing nuts and stacked ring terminals at the battery. Install once and every connection after that is plug-and-play — no tools, no crossed wires, no corroded posts, and batteries come out in seconds for charging or winter storage.

Compatible trolling motors and vehicles: Minn Kota Endura, Traxxis, PowerDrive, Terrova and Riptide (12V models); MotorGuide X3, R3 and Xi3 (12V); Newport Vessels and Watersnake 12V motors. Compatible electronics and accessories: Also feeds 12V house loads: Fish finders, GPS, VHF radios, bilge pumps, livewell pumps, LED lighting, USB chargers and shallow-water anchors.

System voltage: 12V (two 12V batteries in parallel). Recommended batteries: Two matched 12V batteries of the same chemistry, age and Ah rating — 12V deep-cycle AGM, flooded lead-acid or 12.8V LiFePO4 lithium (Group 24/27/31, 50–120Ah). Amperage and protection: Plan for up to 120A continuous draw on 12V motors (30–55 lb thrust). Protect with a 50A breaker per motor maker.

A plug-and-play parallel battery connection system that combines two 12V batteries for extended runtime and increased capacity. Ideal for running trolling motors, live wells, bilge pumps, power poles, and electronics off a dual-battery setup — both batteries draw and charge simultaneously.

• Wires two 12V batteries in parallel for double the amp-hours
• Keeps system voltage at 12V — no motor changes
• Plug-and-play connectors prevent crossed wiring
• Remove batteries for charging or storage in seconds
• AGM, flooded and lithium compatible (use matched batteries)

• Wire: 6-gauge marine-grade wire (primary); 8-gauge parallel system for auxiliary loads
• Connectors: Self-cleaning, positive-lock plug-and-play connections
• Applications: Trolling motors, live wells, bilge pumps, power poles, RVs, ice houses, ag equipment, sump pumps
• Compatibility: AGM and lithium battery compatible
• Installation: No cutting, splicing, or soldering required
• Patent No.: 9,559,473

Compatible Trolling Motors:

• Minn Kota Endura
• Traxxis
• PowerDrive
• Terrova
• Riptide (12V models)
• MotorGuide X3, R3 and Xi3 (12V),
• Newport Vessels and Watersnake 12V motors

Recommended Voltage/ Amperage/ Fuse/ Breaker:

12V (two 12V batteries in parallel), Plan for up to 120A continuous draw on 12V motors (30–55 lb thrust). Protect with a 50A breaker per motor maker.

Battery Types:

Two matched 12V batteries of the same chemistry, age and Ah rating — 12V deep-cycle AGM, flooded lead-acid or 12.8V LiFePO4 lithium (Group 24/27/31, 50–120Ah).

FAQ: Does parallel wiring increase voltage?

A: No. Parallel keeps 12V and adds capacity. Two 100Ah batteries in parallel give you 12V at 200Ah.

FAQ: Can I mix lithium and AGM in parallel?

A: No. Always parallel batteries of the same chemistry, capacity and age for safe, even charging.

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