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Home charge points (purchase/problems/questions) (See mod note post#1)

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Comments

  • Registered Users, Registered Users 2 Posts: 3,032 ✭✭✭Buffman


    Is that the car telling you 1.6-1.8kW or the socket? When I was working off a 10A granny charger on a 'smart' socket which showed actual consumption, it was always pulling around 2.0-2.1kW. Allowing for transmission losses along the fairly 'thin by EV standards' granny charger cable, AC-DC converter and battery pack, a fairly normal 10-20% transmission loss would have you down around 1.6-1.8kW.

    The below is a general 'signature' and not part of any post:

    FYI, if you move to a 'smart' meter electricity plan, you CAN'T move back to a non-smart plan.

    You don't have to take a 'smart' meter if you don't want one, opt-out is available.

    Buy drinks in 3L or bigger plastic bottles or glass bottles or cartons to avoid the DRS fee.



  • Registered Users, Registered Users 2 Posts: 34,358 ✭✭✭✭listermint




  • Registered Users, Registered Users 2 Posts: 6,108 ✭✭✭TheMilkyPirate


    Picking up a 2020 e golf this week and getting home charger installed next Wednesday. It's a sync ev from forkearn. Just wondering should I get the tethered or untethered? Two cables come with the car a granny cable and the other one. Would they be sufficient or should I go tethered? I'm fairly clueless

    It's an extra 100e for the tethered. Basically does anyone know if the type 2 cable that comes with an e golf a 32amp? I've read some places saying 16amp



  • Registered Users, Registered Users 2 Posts: 9,194 ✭✭✭micks_address


    totally depends... is the charger very visible and you want it to look 'tidier' then go untethered.. will you use it much? do you care about times you want to charge and its raining etc.. and you might get wet? tethered is handy just to be able to plug in and not be taking the cable out of your boot and plugging in and unfurling etc.. some will say its no big deal.. very subjective.. i have a tethered zappi and i charge at night a fair bit just to get the night tariff so its handy to be able to plug in/out and my charger is on the side of the house so you can't really see it.. an installer once told me always go untethered as the cables will eventually get damaged coiling/uncoiling... and with untethered you can get just get another cable... but that's true of tethered as well, you'd just need to get it wired into the the wall unit. also tethered usually means the cable is sticking out in some direction.. might be an issue for example in a narrow passageway where you have to bring bins past.. but i just take mine out of the mount when bringing things by that it might get bashed by...



  • Registered Users, Registered Users 2 Posts: 7,343 ✭✭✭witnessmenow


    I have a tethered charger at home and there is a untethered charger at work.

    Personally I think tethered is the way to go unless you have a specific reason to have untethered (maybe like your also using or potentially using an older car with type 1).

    Taking out the cable from the boot and uncoiling it and the reverse when putting it away, potentially while raining, is a bit of faffing I would happily pay a once off €100 to avoid! For the few weeks I'm not in work I can throw the cable under the floor in the boot, if I was using it regularly it would either take up room in the boot or take extra time to put it under the floor every time.



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  • Registered Users, Registered Users 2 Posts: 4,420 ✭✭✭...Ghost...


    Tethered all the way. Take the easy life option

    Stay Free



  • Registered Users, Registered Users 2 Posts: 6,108 ✭✭✭TheMilkyPirate


    Thanks! Is anyone here using a BG sync?



  • Registered Users, Registered Users 2 Posts: 13,409 ✭✭✭✭prawnsambo


    You should definitely be getting more than 1.6-1.8Kw. I checked my granny charger today and was getting 2.3Kw. One thing to note though, cold weather can adversely affect the charge you get as some of the power can be diverted to keeping the batteries at the correct temperature. And it was very cold last night.



  • Registered Users, Registered Users 2 Posts: 2,310 ✭✭✭madcabbage


    Anyone based in the Kerry/Cork region who can recommend an EV charger installer for me? Trying a few places currently for quotes on the work needed. I'm considering a Zappi 7kw untethered, anyone already have one of these. Any issues with them that I should be aware of?



  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    I just got my 7.2kw charger installed. I will only be using it for the 9 hours overnight. So it will be idle for 15 hours everyday.

    Question - do most of you leave the charger powered on all the time. Or would you switch it off during day etc.

    Post edited by obi604 on


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  • Registered Users, Registered Users 2 Posts: 34,358 ✭✭✭✭listermint




  • Moderators, Society & Culture Moderators Posts: 42,191 Mod ✭✭✭✭Gumbo


    100%
    Used a granny to charge a leaf nightly for a year.



  • Moderators, Society & Culture Moderators Posts: 42,191 Mod ✭✭✭✭Gumbo


    True that some power is diverted to heat, condition the batteries but the granny cable itself should still pull 10a or 2.3kw.



  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    Agree. Used a granny charger for 4.5 years on my 24kw leaf. Worked perfect.

    It was on its own dedicated 20amp fuse with dedicated 2.5 cabling running to it.



  • Registered Users, Registered Users 2 Posts: 34,358 ✭✭✭✭listermint




  • Registered Users, Registered Users 2 Posts: 10,032 ✭✭✭✭CoBo55


    Never occurred to me to turn it off, why would you?



  • Registered Users, Registered Users 2 Posts: 10,032 ✭✭✭✭CoBo55


    Big big difference between a Leaf and a modern EV.



  • Moderators, Society & Culture Moderators Posts: 42,191 Mod ✭✭✭✭Gumbo


    big difference in battery capacity but if your daily routine has not changed much then grant cable can still work. The newer stuff is more efficient so you’re actually getting more km per kWh now in a Model 3 for example compared to an older leaf (20kwh/100km in the leaf V 15 kWh/100km in the M3).

    Anyway, no wrong choice. Different options for different people.



  • Moderators, Society & Culture Moderators Posts: 42,191 Mod ✭✭✭✭Gumbo


    Agree, No reason at all. I haven’t turned my charger off since it was installed.



  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    Nothing really, was just wondering - Maybe it’s my old school train of thought of not leaving things on standby doing nothing.



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  • Registered Users, Registered Users 2 Posts: 4,420 ✭✭✭...Ghost...


    I would be of the frame of mind that it's better to leave it on. Turning something on and off all the time can cause problems. An occasional reboot if there are any bugs is all you need.

    By the way, how is the new charger going?

    Stay Free



  • Registered Users, Registered Users 2 Posts: 10,032 ✭✭✭✭CoBo55


    Maybe not a wrong choice but I found the painfully slow charging very limiting and that was with a phev. I certainly wouldn't like to be depending on a granny charger on an EV that was the only available vehicle in the house, maybe it's just me but I'd be constantly worrying if something happened etc.



  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    fair enough. Thanks. new charger is going well, so good to be able to charge at 7.2



  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    oh yes. Big time. The granny charger worked for me for 4.5 years and was perfect. I just essentially plugged it in every night without a thought and utilised night rate electricity. Was always fully charged next morning no matter how low the battery was. Leaf was the ‘’local’ car. Rarely brought outside the county.

    Now I have an EV with a 70kw + battery. Will the granny charger work well here - not a notion. Which is why I just installed a new 7.2kw charger.

    So all depends on your use case.



  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    I have a volkwagen ID4, I removed all scheduling from the car………………as it never seemed to work as it should. I then decided to setup scheduled charging from the EV charger instead

    Had my hypervolt EV charger installed at weekend. I set scheduled charging up on this. start at midnight, end at 9am, all good.

    I don't have solar or anything funky, just a charger for charging the car.

    This morning woke at 7am, expecting car to be charged and it was not, upon checking was only charging at 3.7kw. Load on rest of house was only 0.4kw so no issue there.

    I have charger set in boost mode/32 amps etc so all should be good.

    Paused the charge from the EV charger app and restarted again and this time charging kicked off at 7.2kw

    contacted ev company, their advice was

    "so it looks like the car is not fully active when the schedule charge is starting. Would you be able to set up a small schedule to start a few minutes before your current schedule please? That should wake the vehicle up and allow it to charge at the full rate.

    If you wanted the schedule you currently have set to work, you can start the 'wake up' schedule at 23:55 - 23:59. That will then allow you to charge at the full rate for your full schedule!

    I believe that some Volkswagen vehicles require the car to be 'awake' for it to be able to charge at the full rate."

    Has anyone experienced this? that the car has to be woken up to charge at the full rate?



  • Registered Users, Registered Users 2 Posts: 4,420 ✭✭✭...Ghost...




  • Registered Users, Registered Users 2 Posts: 34,358 ✭✭✭✭listermint


    How confident are you that the hypervolts CT clamp is installed correctly on the incoming tails to the Consumer unit ?..



  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    it’s giving me real time updates via the hypervolt Home Screen of when car is plugged in and when kettle or dryer etc is turned on. And the charging at 3.7kW for x number of hours charging matches with the kw consumed is the app. So I guess it’s ok.

    But I think the car is the issue.



  • Registered Users, Registered Users 2 Posts: 13,409 ✭✭✭✭prawnsambo


    You were getting the full whack when you restarted the charge weren't you? If that's the case, it's not the charger.



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  • Registered Users, Registered Users 2 Posts: 6,322 ✭✭✭obi604


    Correct. Seen I was getting 3.7kW on the hypervolt EV charger app, paused it for 5 seconds, then unpaused……and straight away got 7.2kw



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