[gbgb]

Thanks for a great write up Mike. Thanks for taking the time to do it.

You really were lucky to be in a place where there was an IT staff or a good collection of technical whizzes. That is some charger they whipped up for you!

I have a suggestion for anyone else who runs into a similar problem when far from home. We did this in England many years ago. Just go to any automobile parts dealer or hardware store and buy the cheapest and smallest automobile charger you can find. It will be correct for your local voltage and will have the correct plug.

Your chair has, most likely two 12 volt batteries, just hook the alligator clips on the charger to one battery and charge it up, after a few hours move them to the other battery. It may take a few days for you to get used to how long you need to charge them to get a full charge.

To estimate how long divide the ampere hours of the battery by the charging amps on the face plate of the charger, that is roughly the number of hours each battery needs.

The other thing I’d suggest is that the next time you buy a new chair or a new charger you insist on a multi voltage, international, charger with a two prong, not three prong, plug. Then the only thing you have to worry about is the physical plug adapter not the voltage etc.

BYW there are two kinds of chargers, the big old heavy  transformer chargers that may or may not have a 120/240 volt switch and the newer switching power supply chargers that say “100 to 240 volts” and “50/60 Hertz”. The switching type is what you want.