While losing power during a ride is not a common experience, there are certain variables that can cause this type of malfunction. If your Aventon bike loses all power (and the display turns off) unexpectedly, follow this checklist to determine the cause of the problem.
- Preliminary Inspection: Check the cables and connections for the main components (display, controller, terminal, and harnesses) for damage or loose connections. Also, inspect the battery for signs of damage or swelling. If any plugs are loose, clean and reconnect them. If any cables or components are damaged, replace the damaged part and retest the bike for proper function.
- Battery Charge Level: If an ebike is ridden until its battery dies, the power will eventually cut out. It is important to always pay attention to your charge level and ensure you are able to make it to your destination by conserving battery by pedaling and using a low assist level. Note: Keyless bike models like the Abound SR will cut off motor assist once 4% battery level is reached. The rest of the system will stay on allowing the battery to be removed using the electric battery lock. To remedy this situation, charge the battery back to 100% and proceed with regular use.
- Auto Power Off Setting: While this setting will not interfere with the bike's power while in use, if the Auto Power Off setting is set too low, sometimes the bike may shut off if the rider takes a short break or is stationary for too long. This can cause confusion if the rider is unfamiliar with this setting on their bike. If this setting becomes an issue, the possible solutions are to either change the setting to a longer duration or simply turn this feature off. Both of these changes can be made within the Ebike Settings page once the bike is powered on and connected to the app.
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Loose battery fitment: The most common physical cause of this issue is improper fitment of the battery within the bike. Since batteries on Aventon bikes power the bike through a port-to-terminal system, a loose or improper fit can cause the battery to break its connection with the bike. If the upper or lower battery bases are adjusted improperly in the bike frame, the fitment of the battery can be too loose or too tight. If the fitment is adjusted too loose, the battery may wiggle, the connection can be intermittent, or the battery lock can disengage due to a lack of alignment. The best way to fix this is to loosen the terminal and/or lock assembly bolts, readjust the alignment to the battery, and tighten the bolts back into place. Test fit the battery and ensure the connection is secure while still allowing the battery to be released when the battery lock is disengaged.
Note: On Pace models, tightening the lockrings on the battery and terminal ends can also remedy loose connection issues. (As shown in the "lock ring" photo below). Poor overall battery fitment on Pace models can be corrected by following the Pace .2/.3 Battery Fitment Adjustment
Terminal Adjustment
Pace Lock Ring
- Arcing or Scorching on the Terminal/ Battery Interface: If the battery appears to be charged, undamaged, and secure, but the bike is shutting off, inspect the terminal and battery port. Arcing or scorching can show signs of a poor connection which can be caused by bad alignment, moisture, overheating, damage, or contamination. Arcing or scorching can appear as discoloration to the metal terminal pins or ports as well as discoloration or melting of the plastic adjacent to the metal connections. As a general rule, if any of these symptoms are present, the battery AND terminal should always be replaced together. If only one of the components are changed, it is likely that the newly replaced part will get damaged by the old, scorched part that was left in place. Once both parts are replaced, retest the bike for proper function.