43V Standard Charger FAQ'sUpdated 14 days ago

The charger isn’t switching to charge mode:

Work through these in order:

1. Power & reset: Plug the charger into a reliable AC 100–240 V outlet (protected circuit). If charging doesn’t start within ~20 s, turn the charger OFF, wait 10 s, and turn ON again to reset.
   
   
2. Correct voltage & polarity: The charger voltage must match the battery (e.g., 43 V battery → 43 V charger). Ensure the plug orientation is correct; reversed polarity triggers a fault.
   
   
3. LED meaning:
   
   
   • Flashing Green = charging to 100%
     
     
   • SLOW Flashing Yellow = Storage Charge (to ~50–60%)
     
     
   • FAST Flashing Yellow = Standby
     
     
   • Solid Green = full; Solid Yellow = storage‑charge complete
     
     
   • Alternating Red/Green (with battery connected) = output short circuit / reversed polarity
     
     
4. Environment & condition: Don’t charge if wet/damaged; charge away from flammables / out of direct sun.
   
   

If faults persist, stop and contact Foil Drive with the LED pattern you see.

How does Storage Mode work? Will it discharge my battery?

• Storage Mode limits charge to ~50–60% SoC to preserve long‑term battery health. The LED is SLOW Flashing Yellow during charging, Solid Yellow when done.
  
  
• It will not discharge a battery that’s already above ~50–60%—use the Battery Caddy to discharge to storage level.
  
  

Can I leave the charger running overnight / unattended?

No. Monitor the charge cycle and remove the battery immediately after charging. 

Why is my charger only charging the battery to approx 80%?

When the battery if first charged up, the individual cells may not yet be fully balanced, this can take some time and a number of cycles to balance. The battery management system (BMS) will stop allowing charge if it has noticed that one of the cells is over-voltage.

• Cycle the battery a number of times, run it to the highest charge it will go, take it out and ride it.
• When battery is nearing the % it usually cuts out, connect to the app and watch for any alerts/alarms appearing - note take a screenshot or screen recording to help Foil Drive support with any diagnostics.

What are the charger specs and protection features?

• Input: 100–240 V, 5.0 A, 47/63 Hz · Output: 50.4 V 12 A · Protection rank: IP66.
  
  
• 3‑stage program (bulk/absorb/float) with overload, over‑voltage, over‑heat, short‑circuit, and reverse‑polarity protection.

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To learn more, check out the other articles on our Help Centre which can be found under the 'Support' tab on the website.

As always, if you have any questions, please reach out to us at [email protected]. 

Happy Foil Driving!