How to replace the battery of a Haval H2 key?
3 Answers
Haval H2 key battery replacement method: First, remove the mechanical key, locate the position with the OPEN mark on the smart key, and gently pry open the key shell with a small screwdriver. You can then see the battery inside. Next, remove the old battery, install a new battery of the correct model, paying attention to the positive and negative poles to avoid incorrect installation. Finally, reassemble the key following the original steps. The Haval H2 is a city SUV under the Haval brand, with dimensions of 4330mm in length, 1815mm in width, and 1700mm in height. The vehicle comes standard with LED daytime running lights featuring a diamond-inlaid linear design, 18-inch aluminum alloy wheels, and is powered by a robust 1.5T turbocharged engine, paired with a 7DCT Getrag wet dual-clutch transmission.
My Haval H2 key also suddenly stopped working last time, but replacing the battery is actually quite simple. You'll need a CR2032 coin cell battery and a thin tool, like a small screwdriver or a coin. There's a thin groove on the back of the key—insert the tool and gently pry it open to remove the back cover. Be careful not to use too much force, as the plastic clips can break easily. When removing the old battery, remember the orientation of the positive and negative sides. Insert the new battery in the same direction, usually with the printed side facing up. When putting the back cover back on, align it properly and press firmly until you hear a click, which means it's secured. The whole process takes about five minutes and can save you dozens of yuan in labor fees at the 4S shop. The battery costs about five yuan at the supermarket—just make sure to buy a good-quality one.
As someone who frequently helps neighbors with car key repairs, I believe there are three key details when replacing the battery in a Haval H2. First, locate the key's clip position - the safest approach is at the side U-shaped notch. Second, you must use a CR2032 battery; other models may not fit. Third, avoid using excessive force during disassembly as the plastic casing is quite fragile. I recommend watching tutorial videos online twice before attempting the replacement. With recent hot weather draining batteries faster, replace it when you notice shorter remote control range - don't wait until it completely fails. Finally, always test the lock button after installation; if the light comes on but there's no response, the battery might be inserted backwards.
