Hello everyone, this is a quick article to explain a feature on the Mosquito which may present itself as an error. We would like to highlight a characteristic of the BMS ( Battery Management System ) that may reduce the performance of the unit upon initial delivery and first ride. I would like to explain the factors involved below:
What is a Battery Management System (BMS)?
A battery management system is any electronic system that manages a rechargeable battery, such as by protecting the battery from operating outside its safe operating area, monitoring its state, calculating secondary data, reporting that data, controlling its environment, authenticating it and / or balancing it.
What is The Issue ?
We have seen that some units, even when fully charged out of the box are only able to achieve speeds in the 16-18 mile per hour range. Users may also experience diminished hill climbing and acceleration ability.
Why, and How To Correct It ?
This reduced performance is a by-product of the BMS limiting the output of the battery after it has been unused for some time to prevent an excessive amount of current being taken from the battery in a low voltage situation. Think of current as the volume of electricity, and voltage as the “pressure” the electricity travels at within the wire. The reason the BMS is limiting the current output of the pack is that over the initial shipping and warehousing period it may lose track of what a full charge and discharge cycle looks like for that specific pack. To regain its bearing it waits for a true full charge to reset itself, before this happens it reduces output to mitigate any potential damage from accidental over discharge.
The fix for this situation is simply fully charging and discharging the unit 1-2 times. Once completed the scooter should be able to achieve its full rated performance. If you find after performing this that your unit is still behaving abnormally please feel free to contact us.