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Sealed lead-acid batteries
Found in many cars and motorbikes, sealed lead-acid batteries are a safe and maintenance-free type of rechargeable battery.
Sealed lead-acid batteries are capable of carrying a high current, which makes them ideally suited to power the starter motors in cars. The batteries are also noted for their low initial purchase and maintenance costs.
These advantages have made sealed lead-acid one of the favoured technologies for:
In many vehicles, the sealed lead-acid battery powers the ignition, starter motor and the lights. It may also be used to power any electric systems in a boat.
Maintaining sealed lead-acid batteries
Unless you are a trained professional, tampering with sealed lead-acid batteries can be highly dangerous and should not be attempted.
However, if you are storing your car or boat for an extended period of time, you should remove the battery, ensure that it is fully charged, and store it in a cool dry place.
A top-up charge should be applied every six months to ensure your sealed lead-acid battery continues to work at its full capacity.
Other tips to remember include:
- Always wear gloves and safety goggles when handling a battery.
- Ensure the battery has cooled before trying to remove it.
- Do not smoke or allow any sparks near the battery.
If you are using a traditional lead-acid battery, as opposed to a sealed unit, you should also keep ammonia solution near by to cover any spillages.
Uses for sealed lead-acid batteries
Because there is no risk of spillages, sealed lead-acid batteries are often used as marine batteries. Depending on the power of the boat and experience of those on board, a variety of batteries are available, including:
Gel batteries are also often used in boats, as they are able to cope with the constantly changing angle better than other types of battery.
Sealed lead-acid batteries are versatile, value for money and easily recycled, which is a major factor behind their popularity.
