Battery links

12 volt batteries

AA batteries

AAA batteries

Camcorder batteries

Camera batteries

Duracell batteries

Laptop batteries

Lithium batteries

Mobile phone batteries

Motorcycle batteries

Rechargeable batteries

Watch batteries

Marine batteries

Marine batteries are designed to be used on a boat, which means they have to offer extra protection compared with conventional batteries. It can be very dangerous if you do not use a specialised boat battery while travelling on water. For example, hydrochloric acid and salt water produce chlorine gas if they are mixed.

Moreover, a battery that doesn't have the stronger plates and separators found in marine batteries can potentially cause an electrical fire or explosion when used in a boat.

Conventional batteries simply wouldn't cope with the demands placed on a marine battery. For example, they need to be capable of working at a constantly changing angle due to the undulations of the sea. Many batteries would simply cut out in this situation.

To make sure that none of this happens, always ensure your boat is equipped with a marinised gel battery or a sealed maintenance-free battery.

Safety should always be your first concern when choosing a marine battery.

Choosing a boat battery

Although they work in a similar way to automotive batteries or motorcycle batteries, marine batteries need to cope with more difficult conditions.

After all, no amount of potholes could mimic the conditions of a rough sea. Depending on the size of the boat, many types of marine batteries are available, including:

• 6v batteries.
• 9v batteries.
• 12 volt batteries.

Deep cycle batteries are a popular choice in the boating community, as they give a reliable and constant flow of power.

Marine battery performance

If you use marine batteries correctly and safely, they should offer a long service life. Some tips to remember include:

• Do not use batteries if the case is broken.
• Use safety equipment when servicing the battery, especially if you use a lead acid battery.
• Ensure the battery is in a well ventilated area during charging.
• Make sure the battery has cooled before beginning any work on it.

Marine batteries are one of many types of rechargeable battery. It is recommended they are charged when they reach 50 per cent capacity.

By following this advice, your marine battery packs should last for a long time on the ocean.