If the battery does not charge, when the battery is removed from the bike frame and plugged into the charger directly.
This is likely a blown or defective 5A charging fuse, or an issue with the charger.

The light on the charger brick will turn from green to red when the charger is actively charging the battery. It will turn green, or stay green if the battery is full, or not actively charging.
Picture below for reference:





If possible, please replace the 5A fuse in the battery with a new fuse, and let us know the results. This will either resolve the issue or point towards the charger being the issue.
Please let us know if you are not able to source the fuses yourself, and we will send you a set of fuses.


Potential causes for a fuse to fail:
(also may just be a defective fuse, this information is just for general knowledge and battery care)

If the charger is plugged into an outlet while being first plugged into a battery. Or this can be caused by a power surge from an unprotected outlet or power supply.
Our chargers are not grounded, so if there is not caution taken the fuse will blow to protect the electronics inside the battery.



To troubleshoot this, you will need a replacement 5A "mini/micro" fuse.
These can be found at a nearby hardware or automotive store.

Please do not inspect the fuse that is currently inside the battery to determine the issue, a new replacement fuse must be used to diagnose this issue.



Here is a guide for how to replace a fuse:

Replacing Fuses in your Battery
Tools Required: 2mm Allen Key

Step 1. Remove your battery from the frame

Step 2. Remove 4 bolts from the bottom side of the battery

Step 3. Gently remove bottom piece back to reveal wires and fuse boxes



Step 4. Remove Fuses (Paying attention to which box each fuse came out of, reference photo below).
There will be 2 different Fuses. (a 5A charging fuse, and a 30A power supply fuse).
The 5A fuse goes in the box with only one wire on each end. The 30A fuse goes in the box with two red wires on one end.

 

Step 5. Remove Fuses & hold up to a light to see if they are blown or intact. 

Example 

Step 6. If any of the fuses are bad, replace fuse with a matching number fuse. If the fuses  are good, reinstall fuse back into its correct original box.

Step 7. Gently tuck in fuse boxes and wires and seal bottom piece. Be sure no wires are caught between the battery body and cap

Step 8: Screw in the 4 2mm allen bolts back into the spots they came from

Stem 9: Reinstall battery to frame