pc500
Well-Known Member
It's actually very possible to change it by software, but only in a downward directionIt's impossible to change the level 1/2 charge rate via software, because that's simply what the circuit you are on is providing. What DID happen, is related to the work on vampire drain, and they reduced the drain of non charging related sources, which improved the net amount of energy that is going into the battery per unit of time. So yes, the rate at which the battery fills has gone up, but not because of a change in the power being delivered to the vehicle.
For example, at the full 48 amps and after the normal 7%-10% of typical charging losses, the Rivian was only about 93% efficient in getting that remaining energy into the battery on a net basis (so around 86% efficient overall). It is now 96%. But that is somewhat of a fixed drain in terms of energy, so the efficiency improvement at lower rates is massive. Level 1 was less than 50% efficient before the update for example.
My main ask is to make sure the display is correct. Measure 10kwh at the EVSE delivered at a rate of 1kw/hour. At the end of 10 hours, do you have 9.6kwh in your pack added?
Don't trust the R1T display.
That seems overly good at only 40 watt/hour fixed efficiency loss. Leaf is even 250. Rivian was 500-600 watt/hour efficiency loss prior, and at 1,200 that was nearly 50% loss. That's why I don't trust it. This and there was absolutely nothing about it in the release notes.
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