Foil Drive logo
Foil Drive logo

All articles

Testing the Voltage of a Foil Drive Battery or ChargerUpdated 9 days ago

Instructions on how to test the voltage on your Foil Drive battery and charger. This process can be used across the entire range of batteries: Standard, Power, Sport, Performance and Endurance as well as the 28v & 40v chargers.


POTENTIAL FAULTS

- Charger connected to mains power and displays a green solid light. When connected to drained battery, the light remains green which indicates an issue. 

-When plugged in to the battery, the battery charger displays a flashing green light.

TESTING OUTPUT DATA OF CHARGER, BATTERY AND BMS


What you'll need:

1. Multi-meter

2. Charger

3. Battery

4. Paper clip (or similar), potentially.

Instructions:

1. Adjust multi meter to DC voltage 

1. Test charger first - red cable - Positive; Black cable negative. Test positive to positive, negative to negative. 

Note: 33.4v - 34.7v is a normal range of power output. 

TESTING THE BATTERY

1. Check cables, and connect positive to positive, negative to negative as you did when testing the charger. 

Note: Take note of this percentage as you will compare it to your BMS voltage next. 

(Ref video voltage = 27.98v (Testing cell charge)

TESTING BMS VOLTAGE 

1. Negative prong into tiny hole between two larger holes. If your tip is too short, insert a small paperclip or similar. 

2. Insert positive to positive and check voltage.

Note: 27.98v matches the battery voltage tested above. This indicates a good reading of BMS circuitry to battery cell voltage.

If you need further assistance, please contact [email protected]


Related Articles - Click to read:
 Lithium Battery Care, Use and Storage
 Foil Drive Battery Grease for Gen2 Systems
Gen1 & Gen2 Foil Drive Battery Comparison
 Charging the Foil Drive Batteries


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!

Was this article helpful?
Yes
No