L1 and on-board inverters

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ej1155

Member
Joined
Feb 3, 2013
Messages
5
Location
midsouth
For L1 (110) charging, how does the onboard inverter impact charge time? For example, we currently trickle charge using our 3.3kW on-board charger. If our beloved Evie had a 6.6kW on-board charger, would the L1 trickle charge time significantly differ? Thanks in advance.
 
Nope. L1 is 1.44 KW (12 amps x 120 V), less into the battery and it doesn't matter whether the charger is 3.8 KW, 6.6 KW, or 1000 kW. The 120 V circuit won't put out more, and the stock cord won't won't put out more either. However, there are some cases where modified cords and 20 or 30 amp circuits can put more into the 6.6 KW charger.
 
Any EVSE be L1 or L2 is constrained by the pilot tone duty cycle. A stock Nissan charger signals it has 12A available. Even though a current enhanced leaf could charge at 16A on a 20A circuit it must respect the pilot tone. It is more likely that you are going to plug into a 15A circuit so that is what Nissan designed for.

After all we have already had horror stores about melted sockets. If we stressed them higher many more problems will surface.

Consider a L2 EVSE for your car. 240V times 16 amps is over 3800 watts.
 
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