We all have serious need for electricity onboard and a good working battery is one of the most important crew members. It’s not encouraging, yet it’s a fact: batteries degrade over time. At some point, you shall be looking forward to buying a new one.
It’s important that you choose the right battery for your boat. But … which is the right one? It’s very difficult to select as there are countless choices. The most important factor that you must consider is the purpose of the battery.
Do you require a battery only for starting the boat or also for running the various power-hungry electronics onboard? Or perhaps both. According to the demand of usage, basically there are three types of marine batteries:
Other basic considerations before purchasing a new battery are:
Check your owner’s manual for the recommended battery types and ratings. Substituting the recommended battery type for the other is generally not a good idea. Always choose along with the rating equal to or greater than the recommended value.
These types of batteries offer high bursts of power for short periods of time to kick over your engine and power your boat. The cranking battery sends power to the engine when the ignition switch is activated. Starting batteries are intended to put out a large amount of current for a short period of time.
A cranking battery has more number of lead plates that are thinner and with more surface area to provide the necessary power.
If you are looking to power onboard electronics and accessories the deep cycle battery is what you’ll need. A deep cycle battery puts out a smaller amount of energy for a long period of time. It can handle long discharge cycles while the engine is off.
A deep cycle battery consists of fewer lead plates that are thicker to provide continuous power output over long periods of time.
It’s a hybrid battery that has been designed in a way it can be used as both cranking and deep cycle. Dual purpose batteries are sort of a blend of properties of the two. Like many 2-in-1 options, they do not always allow your boat to perform at the same level as two batteries would.
When purchasing a new battery, don’t forget to recycle your old one. Lead acid batteries can be safely completely recycled when done properly in the right facilities.
Marine batteries lead a pretty tough life and take more abuse than any other battery: pounding waves, seasonal use, long hours without recharge. Investing in a battery monitor solution like Simarine Pico to prolong your baterry’s lifespan just makes sense.
Thousands of batteries are either chronically under-charged or chronically over-charged which makes them kaput. Using Simarine battery monitoring solutions you can:
Information is golden and there is never too much info about your battery. Still, if you find that you are replacing your batteries more frequently than you should be, check and upgrade your electrical system.