Aventon Mid-Drive Bikes – E49 Charger Mismatch TroubleshootingUpdated 2 days ago
This article explains how to troubleshoot the E49 “The Charger Does Not Match” error on Aventon mid-drive bikes.
Use this article if your bike:
- Shows error code E49
- Displays “The Charger Does Not Match”
- Does not charge properly
- Experiences intermittent charging issues
- Stops recognizing the charger
If you are unsure about any step or notice anything unsafe, stop troubleshooting and contact support.
Before You Start
Please prepare the following:
- order number
- Aventon model
- photo or video of the issue
- photo of the E49 error code
- when the issue first appeared
- whether the bike powers on
- whether the battery charges
- whether the charger powers on normally
- whether the issue happened after charging, transport, storage, water exposure, crash, impact, modification, or third-party repair
- photos of any visible damage
Safety Warnings
- Do not continue charging if the charger, battery, or charging cable is damaged.
- Stop immediately if there is overheating, smoke, sparks, burning smell, or liquid leakage.
- Do not use third-party or incompatible chargers.
- Do not open sealed electrical components.
- Stop and contact support if you are unsure.
What This Error Means
E49 indicates the bike does not recognize the connected charger or detects a charging system fault.
The issue may be caused by:
- using the wrong charger
- a damaged charger
- a damaged battery
- damaged charging cables or connectors
Possible Causes
- incompatible charger
- damaged charger
- damaged charger cable
- damaged battery
- worn cable
- broken connector
- internal open circuit
Troubleshooting Steps
Step 1 – Confirm the Correct Charger Is Being Used
Ensure the charger connected to the battery is the correct charger for your Aventon bike model.
Verify:
- charger voltage matches the battery system
- charger connector matches correctly
- charger is an official compatible Aventon charger
If the incorrect charger is being used
Disconnect the charger and use the correct charger.
After connecting the correct charger, check whether the E49 code remains.
If the issue clears
The issue was caused by using an incompatible charger.
If the issue remains
Inspect the charger, cables, and battery for visible damage.
Step 2 – Inspect for Visible Damage
Inspect the following components for visible damage:
- charger
- charger cables
- battery
- charging connectors
If the charger or charger cables are damaged
Replace the charger.
After replacement, check whether the E49 code remains.
If the battery is damaged
Replace the battery.
After replacement, check whether the E49 code remains.
If the issue clears
The issue was likely caused by the damaged component that was replaced.
If the issue remains
Replace the remaining charging system component.
Step 3 – Replace the Charger
Replace the charger if:
- the issue remains after confirming the correct charger is being used
- the charger or charger cable shows visible damage
- the bike intermittently recognizes the charger
After replacement, check whether the E49 code remains.
If the issue clears
The issue was likely caused by a faulty charger.
If the issue remains
Replace the battery.
Step 4 – Replace the Battery
Replace the battery if:
- the issue remains after replacing the charger
- the battery shows visible damage
- charging issues continue after replacing the charger
After replacement, check whether the E49 code remains.
If the issue clears
The issue was likely caused by a faulty battery.
If the issue remains
Please contact support for further diagnosis.
When To Contact Support
Please contact support if:
- the E49 error remains after completing the steps above
- there is visible damage
- the battery does not charge
- the charger overheats
- the charger light behaves abnormally
- the bike does not power on
- the issue appears related to the charger, charging cable, battery, connectors, or internal wiring
- the bike has been exposed to water, crash, impact, transport damage, modification, or third-party repair
- you are unsure how to safely complete a step
- you need warranty, repair, replacement part, refund, or replacement support
If the issue remains after this step, please contact our support team and include the photos/videos listed below.
What To Send Support
Please send:
- order number
- Aventon model
- photo or video of the E49 error code
- photo of the charger label and specifications
- photo of the battery area
- photo of charging connectors and cables
- photos of visible damage
- confirmation of whether the bike powers on
- confirmation of whether the battery charges
- confirmation of charger indicator light behavior
- confirmation of whether there was water exposure, crash, impact, modification, or third-party repair
- list of troubleshooting steps already completed
Important Safety Notes
- Do not continue charging if the E49 error remains.
- Do not use damaged or incompatible chargers.
- Do not ride or charge the bike if there is visible damage, overheating, smoke, burning smell, or water exposure.
- Do not open the battery, charger, controller, or sealed electrical components.
- Do not force connectors.
- Contact support if you are unsure.