After leaving the scooter for a good 9 months I attempted to recharge it with no success. Searching the web, all I can find was how to get at the battery and replace it, but at over £110 for a new one and at least 2 weeks to receive from China I decided to have a go at fixing it.

This link shows how to get at the battery    • How to replace the front wheel of M25...  

A little bit of trouble shooting should find where the issue is.

Hope you find it helpful.