Timeout in I1 Phase

What does 31 mean?

The battery charger experienced a timeout during the I1 (initial constant current) charging phase. This indicates that the battery did not reach the expected voltage or charging conditions within the allocated time for this initial phase, suggesting an underlying battery or charger issue.

• Battery internal resistance is excessively high or its capacity is significantly degraded, preventing it from reaching the voltage threshold within the expected time.
• Incorrect charger settings for the battery type, leading to an inappropriately short timeout value for the I1 phase.
• An intermittent connection or high resistance in the charging path, reducing effective current delivery.

Click steps to track your progress.

1. 1

   Verify the battery's health and internal resistance using a battery diagnostic tool.

2. 2

   Check the charger's configuration for the I1 phase timeout setting (parameter, if available) and ensure it is appropriate for the connected battery's specifications and age.

3. 3

   Inspect all charging connections and cables for signs of high resistance, corrosion, or looseness.