I have a BYD seagull, this has a V2L of 2.2kw. It works, but a soon as you come close to 2kw it will drop the voltage to 195v from 230v, is this normal? The appliance i want to run works ok on 195v, but i don’t want to harm my car inverter.
BYD hires 110.000 engineers and 1 million workers. I'm sure they've thought of it and tested to make sure it's safe.
It is not normal. Most of devices powered from 230V can be powered also from 110V but in case of powering any direct powered induction motor you will get drop of torque or speed. Looking on standard notes voltage can change in +-10% (in range from 207v to 253v)
I measured it and it indeed starts at 212v not 230v. I powered a 1500w electric water heater together with some lights, internet and tv. Voltage dropped to 195v when the heater is off it restored the 212v. I have watched some yt videos from 2 seagull/dolphin mini owners they report the same behavior, so i think it just has a strange way of supplying the V2L function. I will probably buy a Ecoflow to power the house, and charge that with the car.
The voltage is too low but it shouldn’t harm the car however not all appliances act cool with such voltage. My suggestion is to double check tire data: how did you measure the voltage? Extension lead involved, at the end of head part was it measured? Can you try again using different meter?
You said “same behavior”, what exactly? Voltage drop is understandable, and should be safe for the car, they have protection to avoid damage. The potential issue here is usability for you as consumer if voltage drop is excessive. As others said, it works for majority of appliances but also you’re pushing limits there. In summary, my opinion is, if it works it should be safe.
I have a 20 meter extension cord, but it is very thick the conductors are 2.5mm2. That goes into a plug in my wall that is connected to a 10A fuse, voltage/kwh meter and transfer switch. The voltage with nothing connected is ~220v, i always turn off the high load fuses, so only basic needs are on 200-300w the voltage stays ~220v. But as soon as i turn on my coffee maker or water heater(both 1400w) voltage drops to ~190v, but it works… just expected a 7.4kw on board charger that only supplies 2.2kw of V2L to supply a stable 230v. And the car drops power for a few seconds if you try to connect a device with high inrush current, sometimes already if you plug in a laptop charger.
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