How to Replace the Battery in a BAIC Weiwang M50F Key
2 Answers
Press and hold the black button on the widest part of the key, then apply downward force to remove the bright silver decorative cover. Use a small flathead screwdriver or your fingernail to apply downward force and remove the bright silver decorative covers on both sides of the key. Insert an appropriately sized flathead screwdriver into the recessed hole near the metal keyring attachment point, then apply lateral force to pry open the key cover. Once opened, you'll see the key battery - simply replace the old battery.
I've changed the battery for my BAIC Wevan M50F key several times, and it feels like opening a little treasure box. First, check the back of the key—there's usually a small groove or gap. Use a flathead screwdriver or a coin to gently pry open the casing, but don't use too much force, or it might crack. When removing the old battery, make sure to note the positive and negative orientation—it's usually a CR2032 coin cell, so don't install it backward. After inserting the new battery, snap the casing back together, ensuring the clips are properly secured. Finally, test the remote buttons—if the light comes on, it means you've succeeded. The whole process takes less than five minutes, but be careful not to damage the circuit board. After the replacement, the key signal is stronger, making driving much more pleasant. If you can't remember the battery model, check the manual or search online for details.
