Connect-Ease 12V Parallel Battery Connection Kit

Adding a second 12V battery in parallel can increase the available battery capacity without changing the system voltage. The Connect-Ease parallel kit is made for that arrangement, with connections suited to boats, RVs and other 12V equipment. On a fishing boat, the extra capacity may support electronics, pumps or other accessories for longer periods between charges. It is a battery connection kit, not a device that changes voltage or boosts a battery's rated output.

Marine-grade components and quick-connect fittings reduce the number of loose connections involved in a conventional battery hookup. It pairs 6 AWG battery connections with an 8 AWG parallel lead for supported accessory loads. The connectors are compatible with lithium battery installations. Wire and fuse sizing still need to follow the equipment and battery manufacturers' requirements.

The same parallel-battery layout can be useful in cabins, agricultural equipment and mobile power systems where 12V runtime matters. Both batteries remain part of the same electrical bank, so battery matching and correct charging are important. Compared with connecting temporary jumpers each time, a dedicated harness gives the installation a more orderly arrangement. See our battery cable accessories for other ways to rig an onboard power system.

• Allows two 12V batteries to operate as a parallel bank
• Quick-connect fittings simplify battery disconnection
• Marine-grade wiring components for onboard installations
• Suitable for marine and off-grid 12V equipment