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Maintenance and Management of Marine Battery

Types and Uses of Marine Battery

Boat battery can be divided into two categories: acid and alkaline, with capacity generally calculated at 10-hour discharge rate (ampere-hours). As backup and emergency power sources on board, they are primarily used for emergency lighting, telephones, alarm systems, radio equipment, electronic charts, etc., and are also used to start emergency generators, lifeboats, rescue boats, etc.

There are now maintenance-free storage batteries that can be replaced directly at the designated time. A record should be made when replacing storage batteries.

Maintenance and Management of Marine Battery

  • Keep the surface of the battery clean, tighten the filling hole plug to prevent electrolytes from spilling out due to ship movement.

  • Ensure reliable conductivity and pay attention to whether the pole clamp of the battery is corroded or oxidized (apply some Vaseline) and tighten the screw of the connection clamp.

  • Regularly check whether the battery voltage and electrolyte specific gravity meet the requirements. Pay attention to the height of the electrolyte and the presence of sediment, and replenish distilled water in time (do not add diluted sulfuric acid at will).

  • Boat battery, like marine battery 200Ah, should avoid long-term undercharging and overdischarging, prevent plate sulphation (i.e., aging), and avoid damage to the battery or decreased performance (i.e., the voltage is quickly sufficient and quickly drops). To maintain good battery performance, it is necessary to periodically conduct strong charging and full capacity discharge to promote uniform and full activity of the electrolytic substance. The charging current and temperature should not be too high, otherwise the plate will deform or the container will rupture and damage the battery.

  • A-load-free storage battery should be charged and discharged once a month.

  • Do not mix old and new batteries.

Methods for Judging the Charging Status of Lead-Acid Marine Battery

  • Judgment by cell voltage: the cell voltage at the end of charging reaches the required value and remains unchanged for a long time.

  • Judgment by measuring electrolyte specific gravity: the electrolyte specific gravity at the end of charging reaches the required value and remains unchanged for a long time.

  • Uniform air bubbles on the plate and the electrolyte turns from milky white to slightly clear.

  • A large amount of bubbles are produced.

Safety Issues to be Noted in the Use of Boat Battery

Because hydrogen gas is released during charging, the exhaust vent on the marine battery should not be blocked. Ventilation should be done before entering the battery room, and smoking and open flames should be prohibited. Also, prevent metal tools from falling on the poles of the battery, resulting in a short circuit, and prevent electrolytes from splashing on the eyes, skin, or clothes. Moreover, it is best not to wipe the battery with dried polyester cloth to avoid static electricity ignition or explosion.

As a well-known Chinese marine battery manufacturer, JYC Battery Manufacturer Co,. Ltd provides dual-use boat battery using AGM technology with a lower internal resistance, higher starting power, and stronger charging acceptance than other deep cycle batteries. AGM batteries can accept the highest charging current, which means they charge faster. Long life, low self-discharge rate, and excellent performance make AGM batteries the ideal choice for boats that need both fast starting power and reliable deep cycle capability.

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+60 17-535 9299
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No. 8, Lot 3302, Jalan Permata 2, Arab Malaysian Industrial Park, 71800 Nilai, Negeri Sembilan, Malaysia
+60 17-535 9299