Posts: 8
Joined: Fri Mar 06, 2020 9:54 am

Step up transformer...

Tue Sep 08, 2020 11:11 am

So, I only have a standard socket to charge my 2016 egolf, and have been considering for a while my options.

I had an idea last night which I think could end up blowing my car up but I'll ask anyway, I have a step up transformer from the UK that converts 110v to 220v which I bought when I first moved to the states to get my UK appliances working...

My question is, if I charged my car through that, would it make it fast charge or just blow the whole thing up?!

Posts: 894
Joined: Fri Jan 23, 2015 1:18 pm
Location: SF Bay Area

Re: Step up transformer...

Tue Sep 08, 2020 2:14 pm

The transformer can not put out more power than it takes in (and due to entropic losses, it will output less power than it takes in) so I do not see the logic of doing this. Just use your L1 station if that suits your needs or get a proper 240 V circuit installed and buy a L2 EVSE.
2017 e-Golf LE, Multi Coat White with Black Vegan Leather interior

Posts: 46
Joined: Tue May 28, 2019 5:49 am
Location: Atlanta, GA

Re: Step up transformer...

Tue Sep 08, 2020 3:17 pm

Like F1 says, all it'll do is convert your 110v 15a socket to a 220v 7.5a but your wattage will remain constant. A 240v socket will be rated for 40 or 50 amps, so your wattage (which equals voltage times amperage) will be 9.6-12 kW. I don't think your converter will hurt (I imagine that it has a some sort of maximum wattage that would prevent over-pull and fry your system), but it certainly won't hurt.
2016 e-Golf SE
2018 Chrysler Pacifica Plug-In Hybrid

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