I have to confess we made a mistake in buying the 230V version of this charger when we should have bought the 120v version. Clearly this charger has a 3 pin plug intended for 230v but will it work at 120v? I would be surprised if Victron doesn't have a single design which covers 100v to 240v AC and the 230v version is only the style of plug which we will be cutting off anyway.