Almost all modern day boat battery chargers and on-board battery pack chargers these days has two voltage system capability both for 12 and 24-volt Black and Decker batteries with variable-current charging system like 30, 15 and 6 amps. They are also complete with a 3 stage charging system that makes it possible for it to charge different types of batteries to its full potential. It works by firstly releasing a high current followed by a low current and a much lower current when it is almost full. The voltage and current induced by the charger and the timing between changing from every stage is completely different depending on the type of battery you use. For instance if you have a Gel Cell electric battery, you can use the settings for this kind of battery through display control unit.
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 switch between the various forms of batteries like the Flooded, Gel and AGM cell Black and Decker battery packs. Other important capabilities that normally integrated to a more advanced boat battery charger is the capability to adapt in any weather condition and ambient temperature, many chargers now incorporate an option that enables you to choose between different temperature presets. Different temperature configurations affect how the chargers work to obtain its highest possible effectiveness even in the coldest and hottest part of the year.
A good charger must have safety functions built into it aside from the ordinary circuit breaker and glass fuse that normally bundled when you obtain them and are also common circuit safety equipment in most automotive vehicles and big boats. It needs to have a reverse polarity protection circuit to prevent the electric battery and the charger from short circuiting just in case you unintentionally miss-wired it.
Many manufacturers even have a fail-safe system that uses a timer so that it will automatically turn to servicing mode when it exceeds the regular time it normally takes to charge a certain kind of electric battery. This will ensure that it will not get overcharged and damage the electric battery even if you left it unmonitored. Considering that you are using it on a boat, you should obtain one that can stand up to rust from moisture and salt water. Boats are often subjected to shocks specially when there is a storm or large wave, your product should be shockproof.
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