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    how to care for A motorcycle batterY

    Discover our complete motorcycle battery guide:

    How to choose a motorcycle battery - What kind of battery for my motorcycle? - How to charge a motorcycle battery  - How to care for a motorcycle battery


    How to extend the life of your motorcycle battery


    Regular seasonal maintenance


    Pictogramme entretien batterie moto
    • Check the charge/voltage of your battery regularly. If the voltage is below 12.4V (or 6.2V for 6V batteries), charge it with a motorcyle battery charger compatible with the technology of your battery (conventional, AGM, LiFePO4, etc.).
    • Store your motorbike battery in a cool, dry place.
    • Clean the terminals to avoid corrosion.
    • Check that the cables and connectors are correctly connected.
    • For “conventional” batteries, make sure the acid level is above the LOWER LEVEL indicated on the front of the battery, add demineralised water (electrolyte) if required.
    • Ensure that the degassing tube is not bent or blocked.


    Before winter or a long storage period (more than 30 days)


    Pictogramme hivernage de batterie moto
    • Fully charge your battery, switch off or unplug any electrical equipment and, if possible, disconnect the battery from your motorcycle.
    • If possible, connect a smart charger to maintain charge. Otherwise, check the charge/voltage of your battery on a regular basis:
      • Every month for “conventional” batteries
      • Every 2 months for AGM and factory-activated AGM batteries
      • Every 3 months for lithium batteries.
    • If your battery must be stored below 0°C, we would advise you to keep it charged in order to avoid freezing. When a battery is discharged, the acid is less concentrated making freezing more likely to occur.


    Starting a motorcycle after winter


    • Remember to check your cluth before riding. Try kick-starting or push-starting if your bike doesn’t start up straightaway.
    • Avoid using your battery for more than 15 seconds with the starter motor. Recharge the battery then try again for 15 seconds max. If the starter motor weakens, don’t insist and charge the battery instead.
    • For “conventional” batteries, if the acid level has dropped below the minimum fill level, it’s very important that you fill to the maximum level with demineralised water/electrolyte.


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    How often should I charge my motorcycle battery?

    You should charge your motorcycle battery at least once a month, in order to:

    Reduce self-discharge

    Pictogramme auto-décharge batterie moto

    Self-discharge is an electrochemical reaction provoking a progressive drop in charge level depending on temperature conditions. Self-discharge is a completely natural occurence as time goes on.

    If your motorcycle battery hasn’t been used for a long period of time, you should disconnect it from any electronic equipment until the next time you use it.

    We also recommend using a smart charger with a charge maintenance feature. Batteries that discharge completely and remain discharged for long periods of time risk not being able to fully charge later on.


    Avoid battery sulfation


    Pictogramme sulfatation de batterie moto

    One of the main causes of battery failure is sulfation, which occurrs when a battery has been stored for a long period of time. When a motorcycle battery is used normally, lead sulphate crystals can form.

    This chemical reaction is a natural phenomenon which often occurs when a battery is stored in a discharged state (or if the battery has been activated with acid but not charged immediately afterwards).

    A sulphated battery can result in a loss of cranking power and a shorter life.

    In order to guarantee your battery works properly, we advise you to fully charge your battery on a regular basis.

    Sulfation is a serious problem for motorcycle batteries, but it can usually be resolved.

    There are two different types of sulfation: reversible sulfation and permanent sulfation.

    The first type of sulfation occurs when the battery has not been used for a short period of time (a few weeks, for example). It is not irreversible. A battery affected by reversible sulfation can achieve its normal performance if charged for a long period of time.

    Some chargers have a desulfator. If a battery hasn’t been used for a few months or regularly charged, permanent sulfation may occur. Permanent sulfation makes it difficult to use the battery afterwards. In this case, we would advise you to replace your motorcycle battery.


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    Common causes of battery failure after installation

    If your motorcycle battery fails after only a few days of use, it could be due to one of the following reasons:

    • Battery preparation (conventional batteries) or activation (AGM batteries) has not been carried out correctly. It’s important to carefully read the installation guide that comes with your battery.
    • A short circuit in the motorcycle’s electrical system (or dirty/incorrectly connected terminals).
    • Battery sulfation occurs when there has been a long lapse of time between activation (acid filling) and the first charge, which is necessary to completely activate the battery’s electrochemical properties.
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