Will the motorcycle battery be damaged if not used for a long time?
2 Answers
Long-term non-use of motorcycle batteries can cause damage: Vehicle lead-acid batteries belong to the type that requires maintaining a relatively high voltage. If the motorcycle is not ridden for an extended period, it will lead to power loss, rapid aging and decomposition of the lead plates, and evaporation of the electrolyte. Basically, a battery left on the motorcycle for more than six months without any maintenance can be considered scrap. When a motorcycle battery is not used for a long time, it is best to unscrew the positive and negative terminal screws and charge the battery at least once a month. When you need to use it next time, simply reattach the positive and negative terminal screws. The function of a motorcycle battery is to store a certain amount of electricity, which is used to provide power to the starter motor the next time the vehicle is started. Additionally, the starter motor has certain voltage requirements, needing at least 12V to drive it, thereby enabling the motorcycle to start.
I've been riding motorcycles for over a decade, and leaving a battery unused for too long can indeed render it useless. Even when not in use, batteries self-discharge at a rate of over 10% per month, especially lead-acid ones. Once when I was away on business for three months, I returned to find the bike completely unresponsive when I turned the key. Upon checking, the voltage had dropped to 8V, making it impossible to recharge. Worse yet, the internal plates had sulfated and clumped together, rendering the battery completely dead. My advice is to disconnect the negative terminal if the bike won't be used for more than two weeks. If you have garage access, it's best to hook it up to a charger for a couple of hours each month. A smart charger with pulse repair function costs just a few dozen bucks. Modified bikes require extra attention—those equipped with GPS anti-theft devices are particularly power-hungry, and prolonged inactivity is practically a battery killer.