Can the battery capacity of a underbone motorcycle be increased?
2 Answers
No, the capacity cannot be increased. If the battery capacity is larger than the originally specified capacity, the battery will often be in an "undercharged" state. This causes the chemical reaction between the electrolyte and the plates to always occur in the shallow part, while the deep part of the electrolyte and the plates remain dormant. The normally shed material between the plates can easily accumulate in large quantities, forming a "short circuit between plates," which accelerates the "self-discharge" rate, thereby quickly shortening the battery's lifespan. Battery lifespan: The lifespan of a battery is generally about 300 full charge-discharge cycles, meaning the higher the frequency of use, the shorter the lifespan. Typically, a battery can last from one to three years. Battery capacity: The size of motorcycle batteries is categorized as follows: 4-6 amps for 110cc displacement, 7-9 amps for 125-150cc displacement, and 9 amps for 200-250cc displacement.
Well, I'm quite familiar with this topic because I've been repairing motorcycles for over a decade and have worked on many underbone models. In theory, increasing the battery capacity is feasible, but it depends on the specific motorcycle's configuration. The battery compartment in underbone motorcycles is inherently small, so a larger battery might not fit, and you might even need to modify the frame, which can be quite troublesome. The charging system also needs to be compatible. If the generator's output isn't sufficient, a higher-capacity battery could charge more slowly or even overheat and damage the circuitry, which would be a significant loss. I recommend checking your motorcycle's user manual first to see the original battery specifications before blindly opting for a larger one. If you really want to try it, it's better to consult a professional repair shop for an assessment. They can use tools to measure current and check space compatibility to avoid unnecessary hassle. Overall, increasing the battery capacity can be effective under specific conditions, such as frequent start-stop usage or in cold regions, but only if the vehicle supports it.
