Cheers thanks, tried calling but they are closed until the 6th Jan. Will try again then as I doubt ovo will have replied or done anything by then!
-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Do not buy kaluza smart+ charger
- Thread starter m3p_uk
- Start date
Phoned chargedev and they are sending someone to look at on Thursday.
Does your charger also get to 32A? Mine only maxed out at 31A and was told that was the limit of the unit even though it says 32A on it.
Glan gluaisne
Active Member
Some charge points only advertise around 30 A to the car, some advertise the full 32 A. It tends to depend on the charge point components. Running a 32 A rated RCBO at 32 A for hours on end will make it run pretty warm. If the charge point has a 40 A RCBO (perfectly safe to protect the 6mm² normally cable used), then it will run a bit cooler at 32 A.
I've also seen charge points that are limited to 30 A because of the current limit of the relay they use, as 30 A is a common off-the-shelf rating.
A lot of charge points just give a typical power rating, and these can be a little confusing. UK mains voltage is supposedly 230 VAC, with a tolerance of +10% and -6%. In reality, it's usually much closer to 240 VAC, as when we harmonised our supply voltage under the EU harmonisation provisions, we chose not to actually reduce the voltage from the older 240 VAC standard, we just changed the tolerance so we could keep with 240 VAC but officially call it 230 VAC.
This means that power ratings for appliances and charge points may often use 230 VAC, together with the current rating, when stating the maximum power, and often this will be a bit lower than the real power when in use. For example, a 32 A rated charge point will deliver ~7.36 kW at 230 VAC, or 7.68 kW at the more likely 240 VAC. To make matters even more confusing, the power ratings are often rounded to a higher or lower number, so a 32 A charge point may be referred to as either a 7 kW unit or a 7.5 kW unit. The chances are that much of the time it will be delivering somewhere between those to figures.
A 30 A charge point run at a typical 240 VAC will still deliver 7.2 kW, so could, arguably, still be called a 7 kW rated unit.
There's also a tolerance on the way the car measures current; it only seems to measure to the nearest amp, and we don't know if it rounds up or down.
There has been an issue with some M3s and certain smart chargers thanks to a recent Tesla update, this could be your issue.
zappi 2 - Firmware Version 2.142/2.143 - (Tesla "mini-fix") Release Notes - myenergi
zappi 2 - Firmware Version 2.142/2.143 - (Tesla "mini-fix") Release Notes - myenergi
Thanks but the issue happened between updates. There was at least 2 weeks before the issue and after the issue where the car didn't have an update installed
Update - the engineer was really good and swapped the unit out with a replacement in under an hour and all looks to be working fine again!
However still really disappointed with the kaluza attitude and that it has taken so long to replace the faulty unit. Especially if I didn't phone chargedev directly I would still have kaluza adamant that the unit was working fine...
However still really disappointed with the kaluza attitude and that it has taken so long to replace the faulty unit. Especially if I didn't phone chargedev directly I would still have kaluza adamant that the unit was working fine...
Similar threads
