Typically, a boat needs deep cycle batteries as well as outboard start batteries. Deep cycle batteries generally provide battery power to keep the boat's basic systems running. A starting battery is also required to start the engine, which can occur several times during a day on the sea or lake.
Both batteries are equally important. In general, deep cycle batteries require less current, and there are many options. But the outboard starter battery generally needs to provide a high current for a short period of time in order to get the burst of power (high current) needed to start the engine - typically 75-400 amps for 5 to 15 seconds, depending on the boat's engine.
Usually you will see an outboard marked with CCA or MCA, the difference between the two is: CCA is the cold cranking current, the battery can provide 30 seconds at 0°F while maintaining its voltage above 7.2 volts Amperage, MCA is marine starting current, similar but measured at 32°F instead of 0°F.In general, to calculate a battery's MCA rating compared to its CCA rating, multiply by 1.25.
Below is some our Boat Outboard Starter Battery for your reference:
At the same time, in order to save customers' money, OSN POWER has launched a dual-purpose battery, that is, the battery can be used for both deep cycle batteries and start-up batteries.
When using M8 screws, it can be used as a deep-cycle battery. When you need it as a starting battery, you can lock it with a custom-made brass terminal.
We made this terminal. The physical picture is as follows.
Generally, boats need a starting battery and a deep cycle battery. (Or batteries, depending on size.) Deep cycle boat batteries provide power continuously. The starter battery provides the short, large surge needed to start the boat.
Any problems，pls send the email to sales3@osnpower.com or whatsapp:+8615244662250