Using a Type 2 to Type 1 adaptor with a Tesla Wall Charger
We have a considerable number of clients who drive a Tesla and have subsequently purchased another pure EV more often than not a Nissan LEAF as a second EV.
With an existing Tesla charger the question we are often asked is how to charge a LEAF with a Type 1 connection from the Type 2 Tesla Wall charger.
T2 – T1 Adaptor
The Type 2 – Type 1 adaptor or converter enables you to charge a Type 1 car like the LEAF version 1 or the Outlander from any single phase Type 2 outlet.
However there are a few points to understand with the Tesla chargers and we have spoken to many different residential and commercial customers about their Tesla charger setup.
These are the key points to bear in mind.
For newer Tesla wall chargers that are bought for domestic purposes, when the wall charger is plugged in, it uses SWCAN to communicate with Teslas (the Leaf does not use this, it uses J1772 signalling). After 30 seconds of being plugged in without any communication via SWCAN the Tesla wall charger will revert to “Legacy” J1772 signalling. Then the LEAF will respond. – So wait 30 seconds for a sign.
For some Tesla charges – specifically those bought as “Tesla only destination chargers” – the switching does not happen automatically as it requires a configuration change.
A Dip Switch needs to be changed in the charger. The manual for the domestic chargers documents this switch as “Switch Position 2: DIP Switch Position 2 should always be in the UP position.” – where the UP position is “Normal (SWCAN) Communication”. On the inside of the wall charger there is a sticker which says “Dip Switch 2 | Function: Communication | Up (ON): Normal | Down (OFF): Legacy* | * Contact Tesla before using this setting”.
The “DOWN” setting will force the wall charger to only use J1772 signalling, and it will not use SWCAN. Tesla vehicles can communicate in J1772 protocol, so with the position set to DOWN both Leaf and Tesla will charge.