Most charging and battery issues are simple to resolve and don't indicate a fault with your battery or charger. Because the Fusion Battery uses a smart Battery Management System (BMS) and communicates with a smart charger, the two devices perform saf

Most charging and battery issues are simple to resolve and don&apos;t indicate a fault with your battery or charger. Because the Fusion Battery uses a smart Battery Management System (BMS) and communicates with a&#xA0;smart charger, the two devices perform safety checks before charging begins.This article covers the most common questions and troubleshooting tips to help you identify and resolve charging issues, maintain your battery, and keep your system performing at its best.<h2 style="text-align: center;" id="isPasted">Charger Troubleshooting</h2><h2 id="charger-isnt-charging-the-battery">Charger isn&apos;t charging the battery</h2>The Fusion charger is a smart charger that communicates with the battery&apos;s Battery Management System (BMS) before charging begins. This &quot;handshake&quot; is a normal safety feature.Occasionally, if charging is interrupted (for example, the charger is unplugged while charging), the charger may not immediately restart when plugged back in.<h3 id="symptoms">Symptoms</h3><ul data-spread="false"><li style="font-size: 14px;">Charger remains solid green.</li><li style="font-size: 14px;">Battery does not begin charging.</li><li style="font-size: 14px;">Fan does not start.</li><li style="font-size: 14px;">Charger appears to have finished charging when it hasn&apos;t.</li></ul><h3 id="solution">Solution</h3><ol data-spread="false" start="1"><li style="font-size: 14px;">Disconnect the charger from power.</li><li style="font-size: 14px;">Wait 10&#x2013;15 seconds&#xA0;until:<ul data-spread="false" style="font-size: initial;"><li style="font-size: 14px;">the charger light turns completely off</li><li style="font-size: 14px;">you hear the internal relay click.</li></ul></li><li style="font-size: 14px;">Reconnect the charger to power.</li><li style="font-size: 14px;">Allow the charger and battery a few seconds to complete their handshake.</li><li style="font-size: 14px;">Charging should begin normally.</li></ol>When charging starts correctly you will notice:<ul data-spread="false"><li style="font-size: 14px;">the charging indicator begins flashing</li><li style="font-size: 14px;">the charger fan starts running.</li></ul>Tip:&#xA0;Around 99% of charging issues are resolved by fully power cycling the charger before reconnecting it.<h2 style="text-align: left;" id="charger-flashing-red-and-green">Charger flashing red and green</h2>A flashing red and green indicator typically means charging was interrupted unexpectedly, such as unplugging the charger while it was actively charging.This is simply a charger status indication and is easily resolved.<h3 id="to-reset">To reset:</h3><ol data-spread="false" start="1"><li style="font-size: 14px;">Unplug the charger.</li><li style="font-size: 14px;">Wait until all lights have turned off.</li><li style="font-size: 14px;">Plug the charger back in.</li></ol>The charger will reconnect to the battery and resume charging normally.<h1 style="text-align: center;" id="isPasted">Why Won&apos;t My Battery Top Up the Last 1&#x2013;2%?</h1>Fusion batteries use intelligent charging logic.If your battery is already very close to full, the charger may determine that the charging cycle has already been completed and may not restart for the final 1&#x2013;2%.This is completely normal.Once the battery reaches approximately 50V, it is effectively fully charged. Although the battery can reach around 50.4V, the additional runtime gained is only a matter of seconds and is not worth repeatedly attempting to achieve.If you&apos;re unsure whether charging has completed:<ol data-spread="false" start="1"><li style="font-size: 14px;">Unplug the charger.</li><li style="font-size: 14px;">Wait for it to power down.</li><li style="font-size: 14px;">Plug it back in.</li></ol>If charging resumes, the battery will top itself up. If not, the battery is already considered fully charged.<h2 id="isPasted" style="text-align: center;">Check You&apos;re Using the Correct Charge Mode</h2>If charging stops immediately after starting, check whether you&apos;ve selected Storage Charge.Storage Charge will stop automatically once the battery reaches the correct storage voltage.If your battery is already above storage level, charging won&apos;t begin.This is normal behaviour.<h1 id="isPasted" style="text-align: center;">Gen 2 Battery Checker Shows the Wrong Percentage</h1>The original Gen 2 inline battery checker is not compatible with Fusion Batteries.Because Fusion uses a higher battery voltage, the older checker will display an incorrect state of charge.Instead, check battery percentage using one of these methods:<ul data-spread="false"><li style="font-size: 14px; line-height: 2;">The Battery Caddy</li><li style="font-size: 14px; line-height: 2;">The Foil Drive App</li><li style="font-size: 14px; line-height: 2;">The Foil Drive unit when connected</li></ul>

Fusion Charger Troubleshooting

This article covers common Fusion battery questions, troubleshooting tips and best practices to help you get the most from your battery. Some board and mast combinations place additional compression on the Fusion unit, making the battery slightly har

This article covers common Fusion battery questions, troubleshooting tips and best practices to help you get the most from your battery.<h2 style="text-align: center; line-height: 2;" id="battery-troubleshooting">Battery Troubleshooting</h2><h2 id="isPasted" style="line-height: 2;">Battery Difficult to Remove</h2>Some board and mast combinations place additional compression on the Fusion unit, making the battery slightly harder to remove.If this happens:<h3 style="line-height: 2;" id="method-1">Method 1</h3>Open both battery latches.Place your thumbs inside the latch recesses while holding the latches with your fingers.Use the latches for leverage to gently push the battery away from the unit.Many users find this provides much better leverage than simply pulling on the battery.<h3 style="line-height: 2;" id="method-2">Method 2</h3>If the battery is still difficult to remove, slightly loosen the front mast bolts by one or two turns.Reducing compression often allows the battery to slide out easily.This can occur because different boards and mast systems vary in shape and stiffness.Watch the video below for a visual explanation<h1 id="isPasted" style="text-align: center;">Battery Won&apos;t Top Up the Last 1&#x2013;2%</h1>If your battery is already very close to full charge, you may notice the charger doesn&apos;t restart to add the final 1&#x2013;2%.This is normal.Once the Fusion Battery reaches approximately 50V, the charger considers the battery effectively full. The remaining voltage difference provides only a negligible increase in runtime.If you&apos;re unsure whether charging has completed:<ol data-spread="false" start="1"><li style="font-size: 14px; line-height: 2;">Unplug the charger.</li><li style="font-size: 14px; line-height: 2;">Wait a few seconds.</li><li style="font-size: 14px; line-height: 2;">Plug it back in.</li></ol>If charging resumes, it&apos;ll finish topping up the battery.If it doesn&apos;t restart, the battery is already considered fully charged.<h2 id="isPasted" style="text-align: center;">Gen 2 Battery Checker Shows the Wrong Percentage</h2>The original Gen 2 inline battery checker is not compatible with Fusion Batteries.Because Fusion uses a higher battery voltage, the older checker will display an incorrect state of charge.Instead, check battery percentage using one of these methods:<ul data-spread="false"><li style="font-size: 14px; line-height: 2;">The Battery Caddy</li><li style="font-size: 14px; line-height: 2;">The Foil Drive App</li><li style="font-size: 14px; line-height: 2;">The Foil Drive unit when connected</li></ul><h2 id="isPasted" style="text-align: center;">My Battery Got Wet</h2>If water enters the battery compartment, don&apos;t panic.<h2 id="isPasted" style="line-height: 2;">If Salt Water Entered the Unit</h2><ol data-spread="false" start="1"><li style="font-size: 14px; line-height: 2;">Remove the battery.</li><li style="font-size: 14px; line-height: 2;">Drain all water from the unit.</li><li style="font-size: 14px; line-height: 2;">Rinse the battery compartment thoroughly with fresh water to remove salt residue.</li><li style="font-size: 14px; line-height: 2;">Allow the unit to drain and dry.</li><li style="font-size: 14px; line-height: 2;">Dry the battery connector.</li><li style="font-size: 14px; line-height: 2;">If the battery terminal is free of corrosion, reapply dielectric grease to the battery terminals.</li><li style="font-size: 14px; line-height: 2;">Reinstall the battery once dry.</li></ol>Removing salt is the most important step, as salt accelerates corrosion.Important: If there is damage to the battery heat shrink or outer shell - do not use the battery or attempt to charge it. Reach out to <a href="mailto:support@foildrive.com">support@foildrive.com</a> with clear, detailed photos so we can assess the battery.&#xA0;<h2 id="isPasted">If Fresh Water Entered the Unit</h2>Fresh water is much less of a concern.Simply:<ul data-spread="false"><li style="font-size: 14px; line-height: 2;">Drain the water.</li><li style="font-size: 14px; line-height: 2;">Dry the compartment.</li><li style="font-size: 14px; line-height: 2;">Reapply dielectric grease to the connectors.</li><li style="font-size: 14px; line-height: 2;">Reinstall the battery.</li></ul><h1 id="isPasted" style="text-align: center; line-height: 2;">Need More Help?</h1>If you&apos;ve worked through these troubleshooting steps and are still experiencing battery issues, please contact the Foil Drive support team with details of your battery model, and a video capturing the charger behaviour and any indicator lights shown during charging.Watch the video below for more Fusion battery tips&#xA0;<iframe width="100%" src="https://www.youtube.com/embed/OiUmQ6uuGDk?&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable"></iframe>

Fusion Battery Troubleshooting

If you have a 43V Foil Drive Battery, you may notice that both the Battery Caddy and the Foil Drive App display 100% State of Charge while the battery remains connected to the charger and is still actively charging. This is completely normal and is p

<div data-block="true" data-editor="6bnr0" data-offset-key="6fs8r-0-0" id="isPasted">If you have a 43V Foil Drive Battery, you may notice that both the Battery Caddy and the Foil Drive App display 100% State of Charge while the battery remains connected to the charger and is still actively charging.This is completely normal and is part of how lithium battery charging and the Battery Management System (BMS) work.<h2 id="isPasted" style="text-align: center; line-height: 2;">Why does this happen?</h2>The Battery Management System (BMS) continuously estimates the battery&apos;s State of Charge using several factors, including:<ul data-spread="false"><li style="font-size: 14px; line-height: 2;">Battery voltage</li><li style="font-size: 14px; line-height: 2;">Current flow</li><li style="font-size: 14px; line-height: 2;">Battery behaviour during charging and discharging</li></ul>As the battery approaches full charge, the charging process slows significantly to protect the battery and maximise its lifespan.Although the app may display 100%, the charger may still be:<ul data-spread="false"><li style="font-size: 14px; line-height: 2;">Balancing the individual battery cells</li><li style="font-size: 14px; line-height: 2;">Gently topping up the final portion of the battery&apos;s capacity</li></ul>This ensures every cell reaches the correct voltage before charging is complete.<h2 id="isPasted" style="text-align: center; line-height: 2;">A simple analogy</h2>Think of charging your battery like filling a car with fuel.Most of the fuel goes in quickly, but as the tank nears full, the fuel pump automatically clicking off when the tank is essentially full.If you&apos;ve ever gently squeezed the nozzle after the first click, you&apos;ll know you can often add a small amount more before the tank is completely full.Lithium batteries behave in a similar way.The Foil Drive App and Battery Caddy display 100% once the battery is effectively full for normal use, while the charger continues the final balancing and top-up process in the background.</div><h2 id="isPasted" style="text-align: center; line-height: 2;">Why doesn&apos;t the percentage keep increasing?</h2>The battery percentage is an estimate of usable charge rather than a direct measurement of every individual cell.Once the battery reaches its usable full capacity, the displayed State of Charge remains at 100%, even though the charger may still be performing the final balancing process.This is expected behaviour and does not indicate a fault with the battery, charger or Battery Caddy.<h2 id="isPasted" style="text-align: center; line-height: 2;">A closer look at your battery</h2>Unlike many battery-powered products that only display a simple percentage, the Foil Drive App provides detailed battery information, including:<ul data-spread="false"><li style="font-size: 14px; line-height: 2;">State of Charge (%)</li><li style="font-size: 14px; line-height: 2;">Total battery voltage</li><li style="font-size: 14px; line-height: 2;">Individual cell voltages</li><li style="font-size: 14px; line-height: 2;">Remaining amp-hours (Ah)</li><li style="font-size: 14px; line-height: 2;">Charging status</li><li style="font-size: 14px; line-height: 2;">Cell balancing information</li></ul>This provides a real &quot;look under the hood&quot; of what the battery is doing internally. Rather than simply showing Full or Empty, the app allows you to monitor the health and behaviour of the individual cells that make up the battery pack.<h2 id="isPasted" style="text-align: center; line-height: 2;">Is this normal?</h2>Yes.If your 43V battery shows 100% while it remains connected to the charger, this simply means the battery has reached its usable full capacity and the charger is completing the final balancing and top-up process.&#xA0;You can remove the battery from the charger once it reaches 100% charge, but if you&apos;re not in a rush, leave it connected to the charger to finish the final balance charge.

Why Does My 43V Battery Show 100% While It's Still Charging?

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