12V power socket - how to protect the battery

[dx4100]

I have a electric tyre air pump that plugs into the 12V socket. On my ICE car I have to have the engine running so the battery doesn't go flat.

How does it work on these EVs ? If I power on the car will it draw power from the main battery and protect the 12V battery ?

Bit of a noob question but I am a noob

 

[Alb]

If you put the car in READY mode the 12V Battery will be maintained by the Traction Battery

 

[EvTek23]

The 12V power outlet is only rated to 10A (120 watts) so check that the air pump is less than this.
I use a self contained battery version that has plenty of power to adjust the pressure on all 4 tyres when needed.

 

[dx4100]

The 12v power outlet is only rated to 10A (120 watts) so check that the air pump is less than this.
I use a self contained battery version that has plenty of power to adjust the pressure on all 4tyres when needed.

View attachment 41449

Thanks for points this out. The inflator is 12 V, 180 W, and 15 A so thats a no go....

 

[5teep]

Thanks for points this out. The inflator is 2 V, 180 W, and 15 A so thats a no go....

Get yourself a rechargeable lithium inflater in the sales, should find a decent one for £30 or so.

 

[EvTek23]

The one I bought is on the left. I've found it to be very good, easily adding a few psi to each tyre due to seasonal pressure changes and the otherwise usual TPMS alerts, however it is currently unavailable. A close match is the picture on the right.

 

[Ian Key]

I got the Goodyear cordless tyre inflator as I wanted a brand I recognised and that would hopefully meet the UK regulations for charging safety and not a corner cutting Chinese import.

Goodyear Cordless Car Tyre Air Inflator Compressor | Digital Screen | Also Inflates Motorcycle Motorbike Cycle Bicycle Bike Tyres Inflatables : Amazon.co.uk: Automotive

Cordless, digital air inflator with preset PSI, USB recharging, and accessories for car, bike, and inflatables. Compact, lightweight design for easy on-the-go use.

amzn.eu

 

[MG Clive]

I got the Goodyear cordless tyre inflator as I wanted a brand I recognised and that would hopefully meet the UK regulations for charging safety and not a corner cutting Chinese import.

Not sure if it was meant as a joke, but I just had to laugh at the 'corner cutting Chinese import'.