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Almost all new boat battery chargers and on-board electric battery chargers today has a double voltage system functionality both for 12 and 24-volt batteries with adjustable-current charging system like 30, 15 and 6 amps. They are also equipped with a three stage charging system that allows it to charge various types of batteries to its utmost potential. It works by initially launching a high current followed by a low current and a much lower current when it is almost full. The voltage and current stimulated by the charger and the time between changing from each phase is different depending on the kind of battery you use. For instance if you have a Gel Cell battery pack you can use the options for this type of battery by using display control system.

With the built-in special software allows it for a slightly lower charge voltage and higher store voltage to protect sensitive true Gel Cell batteries. Working with a selector switch, you can shift between the various kinds of batteries such as Flooded, Gel and AGM cell electric batteries. Other important functions that usually integrated to a more advanced battery pack charger is the ability to adjust in any kind of weather condition and ambient temperature, most chargers now incorporate a program that permits you to choose between several hot and cold temperature presets. Different temperature configuration settings have an effect on how the chargers run to achieve its highest possible effectiveness even in the coldest and hottest part of the season.

A good charger should have protection features built into it aside from the ordinary circuit breaker and glass fuse that normally included when you buy them and are also typical circuit protection in almost all automotive vehicles and large boats. It must have a reverse polarity protection circuit to protect the battery pack and the charger from short circuiting just in case you unintentionally miss-wired it.

Some companies even have a fail-safe system that utilizes a timer so that it will automatically change to servicing mode when it surpasses the standard time it takes to charge a specific type of battery. This will make certain that it won't get overcharged and ruin the battery pack even if you left it alone. Because you are using it on a boat, you should find one that can stand up to corrosion from humidity and salt water. Boats are always subjected to shocks particularly when there is a storm or large waves, your device should be shockproof.

Whenever you order a completely new unit it normally includes all the things you need to mount and hook up it to the battery. It is usually included with the standard mounting bracket and the screws to keep it in place. The wire to hook up it to the battery and the terminals and alligator clamp for temporary connection are also bundled. The span of the wires is long enough so you can place the charger near the battery.

If you want to install it away from the batteries, you need to obtain longer wires. Same with the input, usually it only have about 6 feet of cord wire so you need to use an extension cord or if you want you can wire it using a heavy-duty on-board charger inlet so you can just connect it from the outside of the boat. You need to also find one with the correct size or capacity, you can select from 30, 15, 10 and 6 amps charger. Choosing an underrated one will take it more time to charge and sometimes will lead to a malfunction triggering the fail-safe protection timer that forbids it from overcharging.

For additional info about the various types of boat battery chargers or marine battery charger you can visit www.boatbatterychargers.net and get the best prices.