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kerzappy
Rank 1
October 3, 2026
Solved

hyundai kona 2024 charging issue with hypervolt and ovo anytime

  • October 3, 2026
  • 2 replies
  • 22 views

My kona charged fine until last weekend. Since then it goes into a constant loop cycle of starting, then cuts out after about 2 seconds. The only way I can get charge into the Kona was to drop the charging rate to 60% in the car. This works until household electricity demands are greater, such as oven, etc. It then drops out, restarts, drops out again.

The hypervolt home charger was professionally installed on its own circuit as standard.

The only other thing I would add is that this started after I used a bokeman 3 pin charger at work to top up.

Im finding it really difficult to charge my ev at the moment. Does anyone have any advise?

Best answer by kerzappy

Just as an update on this... we research some more and ended up calling national grid out to test the system. Turns out that the fault was a resistive load on the return neutral wiring out on the road outside our property. Obviously a really serious problem. 

Thankfully the sensitivity of the hypervolt charger kind of indicated something really wrong, so if anyone has a similar issue, dont hesitate to call 105 for an emergency check.

2 replies

Rank 1
kerzappyAuthorBest Answer
Rank 1
October 3, 2026

Just as an update on this... we research some more and ended up calling national grid out to test the system. Turns out that the fault was a resistive load on the return neutral wiring out on the road outside our property. Obviously a really serious problem. 

Thankfully the sensitivity of the hypervolt charger kind of indicated something really wrong, so if anyone has a similar issue, dont hesitate to call 105 for an emergency check.

    Peter E
    Super User
    Peter ESuper User
    Super User
    October 4, 2026

    Hi ​@kerzappy 

     

    Thank you for taking the time to come back with the answer. That is an interesting fault which I had not heard of before. It gives us another factor to consider when responding to issues. Resistance in the neutral (or live) will cause your supply voltage to drop under load to the point where equipment (charger) starts to malfunction but reset itself when charging is stopped. Only for the cycle to repeat.

     

    Calls to 105 (your network supply company) are taken very seriously and they should respond promptly and if you register with them they can supply updates to your local or more widespread issue by text message.

     

    Peter 

     

    Reducing my yearly fossil fuel usage with an EV (-900 litres petrol saving about £950/year), A2AHP (-8,700 kWh gas, cost neutral) and Timed Immersion heater (-1,500 kWh gas, £20/year more expensive but reducing as the gas price goes up)
    Terms & ConditionsAccessibility statement

    OVO Energy Ltd, Floor 5, Crescent, Temple Back, Redcliffe, BS1 6EZ, (Company no. 06890795) registered in England and Wales.

    OVO (S) Gas Limited is registered in England and Wales (Company No. 02716495) at Floor 5, Crescent, Temple Back, Redcliffe, BS1 6EZ.

    OVO (S) Gas Limited is part of OVO Group Ltd