I'm hoping someone might be able to help me. For 3 years I have had no problems with my scoot but this morning it did not want to start, it was dead.

I last used it last Friday, I use it all year round Monday to Friday with the occasional run out at the weekend. Is it the battery

When I got home tonight I put a volt meter on it to check, it was showing 12v, so tried to start it while the meter was still attached, it dropped to just under 10v but no life from the scoot. I did get it going when I attached jump leads from the car, it started first time.
I am not mechanically minded so wouldn't know were to start if it is anything else.