How to replace the battery of Changan CS75 car key?
4 Answers
To replace the battery of Changan CS75 car key, simply remove the old battery and install a new one. Here are the steps to replace the battery: 1. Use a flat-head screwdriver or a similar tool to pry open the remote control shell, remove the discharged remote transmitter battery, and place the new battery with the positive (+) side facing down into the compartment; 2. After installing the battery, securely close the remote transmitter cover, reinsert the remote control and key back to their original positions. After replacing the battery, check if the remote transmitter operates normally, ensure the battery is installed with the correct polarity, and avoid moving or touching any components inside the remote transmitter, as this may interfere with normal operation.
I've been driving the Changan CS75 for several years, and changing the car key battery isn't too difficult. First, hold the key steady. There's usually a small gap on the back—use your fingernail or a thin card to gently pry it open, but don't apply too much force to avoid cracking it. Once the back cover is off, you'll find a coin cell battery inside, typically a CR2032. The old battery might be rusty or dirty; use a plastic tweezer to remove it. Make sure the new battery is inserted with the positive side facing up, similar to replacing a watch battery. Snap the cover back on and test the unlock function. Once, I put it in the wrong way, and it didn't work, but after flipping it, everything was fine. Over time, car keys drain batteries faster, so I recommend replacing them every two years to avoid failure at critical moments. Stick to reputable battery brands—cheap ones tend to leak. If it still doesn't work after replacement, the key contacts might be dirty; just clean them with an eraser to save a trip to the dealership.
As someone who enjoys tinkering with minor car repairs, changing the battery in the Changan CS75 key is quite interesting. I always prepare the necessary tools: a small flathead screwdriver and a new CR2032 battery. First, observe the key's structure—there are clasps on the back. Use the screwdriver to gently pry open a small gap, being careful not to scratch the casing. When removing the battery, pay attention to its orientation; the side with the positive pole (usually the raised side) should face upward. Test the buttons immediately after replacement. If the signal is weak, it might be due to improper placement or a dead battery—I recommend using a multimeter to check the old battery's voltage; if it's below 3V, it's time to replace it. Don’t forget to clean any dust in the battery compartment to avoid poor contact. The whole process takes just five minutes, and doing it yourself saves on repair costs. For long-term use, I suggest buying batteries from reputable stores—don’t go for cheap ones to avoid damaging the circuit.
Owners of the Changan CS75 should be cautious when replacing key fob batteries. I always remind them not to operate inside the car to avoid accidental locking, and to use the spare key to open the door in case of failure. The steps are simple: locate the gap on the back cover of the key, gently pry it open, and remove the battery. The new battery is a CR2032 model, and make sure the positive side is facing up when inserting it. Before reassembling, test the unlock function from a distance for safety. If there's no response after replacement, the contacts might be loose—check if the back cover is pressed tightly. Don’t use old batteries for too long, as aging can cause sudden power loss. Avoid using excessive force during the process, as the plastic casing is fragile. If experienced, you can buy tools and replace it yourself.
