When charging deep cycle marine batteries, you first need to understand deep cycle marine batteries, which are designed to provide a large amount of power to start a starter motor in a short period of time and are required to provide long periods of stable power for the various electrical appliances on board to work. Charging is important for any battery, and deep cycle marine batteries are no exception. Proper charging will extend the life of the battery without causing damage.
1.1 Check deep cycle marine battery
1.1.1 Check the appearance of the deep cycle marine battery for dents or protrusions, which may affect the integrity of the case and affect charging.
1.1.2 Check the appearance of the deep cycle marine battery for cracks or crazing, which may cause leakage.
1.1.3 Check the appearance of the deep cycle marine battery for any foreign matter or contamination, any foreign matter or contamination will affect the performance of the battery and reduce the use efficiency of the battery.
1.1.4 Check whether the wiring harness connection terminals of the deep cycle marine battery are connected reliably.
1.2 Check the deep cycle battery charger
1.2.1 Check whether the parameter specification of the charger corresponds to the deep cycle marine battery, using ordinary charger will result in incompatibility between the charger and the deep cycle marine battery, resulting in failure to charge, replace the charger with the same parameter specification.
1.2.3 Check whether the appearance of the charger has corrosion, etc. Corrosion of the charger may also lead to failure of charging.
1.2.4 Check whether the charger line has broken or damaged phenomenon, there is damage will occur leakage or can not charge fault.
1.2.5 Check the charger port, the port has a foreign body can also lead to poor contact or can not charge.
1.3 Check the safety equipment
Check insulated gloves, goggles, protective clothing for damage to prevent sparks or electrolyte leakage causing injury.
The first thing we need to do is to turn off the main power of the boat, and then identify the positive and negative terminals of the battery, which are usually labeled with a plus sign (+) and a minus sign (-). Connect the positive terminal of the rechargeable battery to the positive terminal of the battery and the negative terminal of the charger to the negative terminal of the battery. During operation, be careful to connect the positive terminal first and then the negative terminal, avoid having metal objects on your body or touching other metal objects.
Deep cycle marine batteries have a variety of charging rates, we need to charge the battery according to the specific charging rate of the battery. Avoid too low or too high current, when the current is too low it will not charge, too high current will burn the components of the battery, the battery will heat up, and in serious cases, the battery will catch fire.
After all devices are properly connected, the power can be turned on to charge the deep cycle battery. If the power is turned on to charge before the connections are complete, electric shock may occur.
When the battery is charging, you can use a multimeter to check the voltage status of the battery, the voltage of the battery will rise with the charging time, and when it is fully charged, the voltage of the battery can reach about 12.5V. If you find any abnormality, please disconnect the power immediately and ask a professional.
After the deep cycle battery is fully charged, disconnect the negative terminal then the positive terminal. Then check if the battery can work properly and finally wipe the battery with a clean cloth or towel.
When charging deep cycle batteries, pay attention to personal safety equipment and battery inspection matters, as well as the subsequent charging steps, in order to maximize the protection of the battery and personal life and health safety.
