
Haojue scooter comes with a standard 12-volt 6-ampere-hour , i.e., 12V6AH. Below is relevant information: Scooter motorcycles: Scooter motorcycles mostly feature continuously variable transmission (CVT) with automatic clutch, similar to Mullan-style electric vehicles. They lack gear design—simply twist the throttle to move and release it to gradually decelerate until stopping. Additionally, scooter wheels are smaller than those on other motorcycles. Transmission system: The transmission system predominantly uses belt drive, commonly referred to as "step-through" or "women's" motorcycles. The term "scooter" refers to the wide footboard between the seat and handlebars, allowing riders to place their feet comfortably as if sitting on a chair, unlike straddle-style motorcycles.

Most Haojue scooter motorcycles use 12V -free lead-acid batteries, with the most common model being the YTX7L-BS specification. My own 125cc YuZhan model, when opened up, revealed a 7Ah capacity battery, about the size of a palm. Battery capacities vary across different models—for instance, the UCR125 uses a 6Ah battery, while 150cc models might require a 9Ah one. Choosing a battery depends on the motorcycle's starting current requirements, and the factory-installed ones are usually well-matched. I remember last winter when the temperature dropped to minus ten degrees Celsius, my neighbor's motorcycle wouldn't start, but after replacing it with a Yuasa battery of the same model, it worked immediately. These maintenance-free batteries are worry-free, but you still need to check the voltage every two years or so. If the battery is severely discharged, it might be rendered useless.

I've been repairing motorcycles for over a decade, and more than 90% of Haojue scooters use 12V -free batteries. Common models include YUASA's YTX7L-BS or GS's GTX7L-BS, with capacities ranging between 6Ah-7Ah. There's a detail many people overlook: when installing a new battery, you must verify the dimensions. Last year, I encountered a situation where an aftermarket battery was slightly larger and wouldn't fit into the bottom casing when replacing a Suzuki UE125's battery. These gel batteries are particularly vulnerable to deep discharge. If the vehicle sits unused for two months, the battery will likely be completely drained. It's advisable to install a power cutoff switch or at least start the engine for twenty minutes each month to recharge.

The original batteries for Haojue scooters are mostly 12V -free models, commonly seen with brands like Yuasa and GY. For 125CC displacements, the 7Ah specification is typically used, with replacement costs under 200 RMB. When I replaced the battery for my Neptune scooter two years ago, I learned a key point: always use a multimeter to check the voltage after installation. If it reads below 12.5V when the engine is cold, it indicates insufficient charge. Starting failures are especially common in winter. Once at -15°C, my scooter wouldn't start, and the mechanic said it was due to decreased electrolyte activity. It's advisable to buy a battery with an inspection window to monitor its condition easily; when it turns white, it's time to prepare for a replacement.

As a motorcyclist from the north, I know very well how crucial the is for Haojue scooters in winter. The 125 models generally use 12V6-7Ah maintenance-free batteries, but extra caution is needed in extremely cold areas: low temperatures can reduce capacity by 40%. Last year, my Suzuki Let's wouldn't start due to the cold, and I had to remove the battery and slow-charge it for 8 hours with a charger to revive it. When choosing a new battery, don’t just look at the price—CCA (Cold Cranking Amps) is more important. The original Yuasa YTX7L-BS can deliver up to 110A. If you frequently take short rides, it’s recommended to top up the battery with a charger every quarter, which can extend its lifespan by two years.

When replacing the on your Haojue scooter yourself, focus on three key points: First, ensure model compatibility by checking the label on the old battery for codes like 'YTX7L-BS'. Second, avoid reversing the polarity - connect the red wire to the positive (+) terminal. Finally, test the headlight brightness after installation. Last time I bought an aftermarket battery for 90 yuan at the auto parts market, and it fit perfectly. For long-term parking, always disconnect the negative terminal to prevent the alarm system from draining the battery. Considering the battery's location under the footboard (prone to moisture), choose an anti-vibration design for better durability.


