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The electric car charging thread

johndoh · 2024-04-04T10:09:57Z

I thought I would keep this one separate from the main car thread as I have some specific questions regarding charging/options/methods etc with my first electric car being delivered later this year. If it helps answer any questions, the car is a Lexus Rz and the cost of any charger installation and ongoing charging costs will be paid via my business (which trades as a partnership so no BIN issues). Home chargers Are they all equal? Is there any benefit of one over another? We have a drive and we can charge whenever we want so won't need to rely on charging from public outlets (ie, 99% of the time I will be charging from home). 3 pin chargers Apparently the car comes with one – I assume this means I can plug it into any standard UK 3-pin charger if out and about? How long would it take to charge an (assumed almost empty) 70kWh battery? Charging networks Are they all the same (ie, can I use any that I come across)? I know that some charge more quickly than others, but otherwise can I plug into any that I come across? SuperCharger networks I hear about these mentioned lots (on the other thread) – are they Tesla only? Cost The car has a 70kWh battery, with a claimed 28kWh / 100 miles (although I have read that it is less efficient than that on normal conditions). I am currently on a tariff with a unit rate of 21.33p kWh and it's tied in for a further 6 months after I get the car. I could switch to an electric car tariff (EDFs is 9p kWh overnight, 27p kWh during peak hours) with a £50 exit fee (or of course I could switch supplier altogether). Of course this means that daytime costs for electricity usage would be higher so wondering if it is worth the hassle. I am not bothered about trying to save a few £££s each month (as I can claim the cost back via my business) but if the cost of staying on the current tariff would run into hundreds a month, then I would swap. Bear in mind that I probably only do a maximum of around 8,000 miles a year. I think that's it, is their anything else I need to know?

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retrorick

Posts: 2082

Full Member

Posted by: MadBillMcMad

↑

Regards using 10amp, I've been thinking much the same. Our typical daily mileage is sweet fa, so could be ok, just keeping it topped up.

I've not had any issues charging my ioniq with the 3 pin charger that came with the car. 10amp adds around 2.2kw/hr which for local miles is enough.

I have probably continuously charged via this method for up to 10hrs in one go. It didn't cause any issues to my electrics and the tapo smart plug that I was controlling the charge times with.

I'll continue with this method until I decide on a specific home charger which might a system which operates from a battery 🤔

Posted : 08/04/2026 3:16 pm

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