Ah, that's interesting. I noticed that when I left the battery in the gun (not something I normally do) it was very low on power two weeks later and t...

When Zero One looked at my MP40, the bloke said he charged the battery up one day and the next day it was flat.

As the bloke always says on our local forecast: "A bit of sun, a bit of rain, moderate winds, temperature average for the time of year..." ...

Alternatively, you could use a decharger.....