Monday, July 7, 2025

How to Fix Xhorse VVDI MB FBS3 KeylessGo Key Battery Drain?

Problem: Users of the Xhorse VVDI MB FBS3 Smart Key have reported issues with excessive battery drain, leading to frequent battery replacements. This problem often stems from a design flaw in the key fob, where improper handling can cause a short circuit, resulting in rapid battery depletion.

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Solution (3 Steps)

1. Open the Key - Carefully pry apart the key fob.


2. Insulate the Contact - Cover the exposed metal battery contacts with insulating tape (Kapton tape works best).


3. Reassemble & Test - Close the key and check if all buttons work.

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Prevention Tips

1. Avoid pressing buttons too hard.

2. Use quality batteries.

3. Buy the improved version like VVDI BE Key Pro.


For further assistance, visit www.xhorse.co.uk.


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