![]() ![]() We recommend double-crimped terminals, with solid metal-to-metal connections and heat shrink tubing for waterproof protection. Be sure to use tin plated copper connectors as well, for the least electrical resistance and the best corrosion protection. Moisture, vibration, heat, abrasion and chemicals are major enemies of all electrical system components, and only marine rated wire (like that from Ancor Marine) is built to withstand these conditions. We recommend low-resistance, tinned copper wire in all applications. Heavy-Duty Stainless Steel Lug Crimper will crimp #6 to 4/0 AWG wire using a hammer or vise. Batteries, especially the flooded type, must also be easy to get to for service. If there is insufficient natural ventilation you may have to add a sparkproof exhaust fan to eliminate gas buildup and to lower the temperature. This presents a dilemma for many battery installations since you want short runs of battery cable to your engine’s starter or alternator to prevent a loss of voltage, but your battery won’t last long in a hot engine room and must be ventilated.īatteries, especially the flooded type, give off lighter-than-air explosive hydrogen gas when charging, so they must be vented from the top directly to the outside of the boat. If the proposed battery location is too hot for you, it is also too hot for your battery. Batteries are temperature sensitive, needing a temperature that is comfortable for a person, and high temperatures dramatically shorten their life. This credo works as well for batteries as it does for real estate. Be very careful with uninsulated tools that might short across the battery terminals. Be careful of using unshielded droplights or any open sources of heat or flame around the batteries. Be sure to wear safety glasses when working on batteries and have a water hose or other available method of flushing battery acid out of the eyes and off the face.For inboard engine applications, you should use clamp-on battery terminals connected to the correct gauge of battery cable. For outboard engine applications we recommend replacing wingnuts on the tops of the battery with nylock nuts or hex nuts and lock washers that are tightened to at least 10-foot-pounds of torque.This means having clean metal-to-metal connections, the right size terminals which are properly crimped and waterproofed and secure mechanical fasteners. ![]()
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