|
The supplied device is 10A, while the vehicle can accept up to 16A. If your voltage is 220vac, power=volts*amps, so 2200W/hour. If you upped it to 16A at the same voltage, it would be 3520W/hr, or nearly 150% faster. It's up to you whether that extra speed is worth the expense. If I were going to do it, I'd probably run wiring that was larger than required to support a bigger EVSE. So, down the line, with your next vehicle, you'd only need to buy a larger EVSE rather than having to replace the wiring, too.
In the USA, the supplied EVSE is still 10A, but it's designed to plug into our 120vac sockets, so is maybe not as useful, since overnight won't fully recharge the X5 45e. Codes in the US require a device that can run continuously for the time something like an EVSE to be limited to 80% of the mains wiring, so you'd want a circuit capable of at least 12.5A, but the local codes may differ. It's still a good idea, even if it isn't required.
The internal conversion from ACV to DCV needed to recharge the batteries isn't perfect, so you'll need to put in more watts than eventually will be stored. Some of that goes into heat during the inefficiencies, and some may be used for cooling during the process, depending on conditions.
|