Battery Charging

[Hopkirk]

Does it take more power to charge an electric car from 90% to 100% than from 10% to 20%?

[bhg481]

What you really need to do is look at the predicted range say 10 mins into your journey. That will take into account the real capacity of your battery and also what accessories you're using that day (wipers, heater, lights etc).

[Zacs-Master]

Been rapid charging my EV for a year and zero loss of miles / charge.

Slow charging is not all good news: ‘ However one final point of charging for extended periods with a domestic plug, consistent current over many hours could be a risk. Which is why we recommend a dedicated EV charger installed at home by an accredited professional.’

https://insideevs.com/news/446204/speed-charging-ev-advice/

‘ A 3-pin domestic socket is not designed for continuous high-power usage and so most manufacturers recommend three-pin charging only in emergency situations’
https://wepoweryourcar.com/3-pin-plug-charger-vs-dedicated-home-charger/

[Hopkirk]

No problem for my house Zacs. It's a new build, so there is no worry about old wiring or connectors. The electrician who originally wired the house fitted the external socket for me. He knew what it was for and told me it is no problem using it for car charging.

[Canary42]

Widening this into ordinary rechargeable domestic batteries, my experience suggests that after a few re-charges the life time rapidly reduces and the batteries seem to spend more time in the recharger than in the powered device.

[douglas9401]

Saving the planet is a tough gig.

Plundering scarce and finite resources in far going places so you can feel all cost and look down your nose at oil burners, the emissions of which are much less harmful than the old days.

Still, keeps the kids off the streets if they're out there mining for your conscience.

[Hopkirk]

At least I haven't got an exhaust pipe.

[douglas9401]

I'll give you a toot during the predicted power cuts.

[Hopkirk]

If there are power cuts it will be at times of peak usage.
I deliberately don't charge at such times anyway.
I'll give you a toot next time the ecoprotesters block the oil refineries and you are queueing for fuel.

[ZebuSanctuary]

// rapid charging that causes most 'wear'. I do the opposite, very slow charging //

A prudent practice!

Overcharging was certainly one of the causes that would result in the plates buckling in a Lead acid battery.

I seemed to remember reading a journal (unable to find it at the moment) which deemed it ok to rapidly charge a Lithium (based) battery to 65% of its maximum charge. Subsequently the charging current should then be reduced.

As for overcharging, this should be prevented with onboard electronic circuit protection.

[dustypuss]

Walk

[Hopkirk]

No