Can the EVSE be adjusted to allow a higher (or lower) charge power?
For the Nissan, Honda, and Mitsubishi branded upgrades; Yes, not only can it be adjusted, but it is a simple procedure you can do yourself. Unfortunately due to hardware limitations the Toyota-branded units do not support this feature. The output power can be adjusted in 1 amp increments which can be set to a minimum of 6 amps (SAE J1772 limitation) and the maximum is dependent on what voltage you have the unit connected to, and what brand/model unit you have. Full instructions are furnished with each upgrade on how this works, and the unit reports it's present amp setting back to you so you will always know it's setting.