Will error 430 come back after I fix it?

If your bike is used at least weekly, the internal battery stays charged and error 430 should not recur. Long storage with the battery removed will cause it to reappear.

Is error 430 dangerous to ride through?

Error 430 is a low-severity notification. Motor assistance is not always disabled. The main consequence is potential loss of ride data and clock accuracy.

Bosch E-Bike Error 430: Internal Display Battery Depleted Fix

Bosch E-Bike Error Code 430: Internal Display Battery Depleted

Marcus Heidler March 20, 2026 4 min read @MarcusHeidlerEbike

What Error 430 Means

Error 430 indicates that the internal backup battery (RTC battery) inside the display has fully discharged. This small cell maintains the display clock, ride statistics memory, and configuration data when the main traction battery is removed.

Fix Procedure

Step 1: Recharge by Riding

Install a fully charged main battery, power on, and ride normally for 30 to 60 minutes. The internal battery recharges during operation and error 430 should clear on the next power cycle.

Step 2: Leave Plugged In

If riding is not immediately possible, leave the main battery installed with the system powered on for 1 to 2 hours.

Step 3: Replace the Internal Battery

If error 430 returns frequently despite regular riding, the backup battery has reached end of life. Replacement requires display disassembly by a Bosch-certified dealer and typically costs EUR 30 to EUR 60 including parts.

Prevention

During winter storage, leave the main traction battery installed at 40 to 60 percent charge to keep the display backup battery topped up.

Marcus Heidler @MarcusHeidlerEbike

Bosch eBike Systems Specialist

Former Bosch eBike technician with 11 years of field experience. Certified in Performance Line CX diagnostics and Smart System integration.

Frequently Asked Questions

: If your bike is used at least weekly, the internal battery stays charged and error 430 should not recur. Long storage with the battery removed will cause it to reappear.
: Error 430 is a low-severity notification. Motor assistance is not always disabled. The main consequence is potential loss of ride data and clock accuracy.