There have not been any new firmware releases since MX_1.5.1 (7/25/18) and EX_1.2.1 (7/25/18) right? If so, then I should still have the latest one.
MX/MXR Firmware
Cool. Now I know that too!
I guess I knew that with diodes it matters which way to install them, but I had no idea it matters with the light emitting types too. Turns out it does.
Your standard charger is capable of both 120V and 240V. It comes with a 120V plug.
The optional rapid charger is also capable of both 120V and 240V. It comes with a 240V plug.
You can surely install a 240V plug on it. Of you can make an adapter. This thread has the instructions for a 240...
If you want to try riding a little faster, I would take your bike to a suspension tuner and ask them to install these shims into the fork and shock:
Factory developed Redshift MX suspension shim stack specs
Cool! So, basically, the guy made a housing for this thingie:
https://www.ebay.com/p/AC-100a-Power-Meters-Monitor-Volt-Amp-kWh-Watt-Digital-Combo-Meter-Ac110v-230v/1775376674