Volvo Owners Club Forum - "Charge" Button on Screen

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koolade

Nov 11th, 2019 09:41

"Charge" Button on Screen

Morning Team

Potentially dumb Q here. The "Charge" button at the top of the screen on the right hand menu.

Does this use EXTRA petrol to charge the battery when enabled or not? If it doesnt use extra petrol, then why isn't this featured enabled in the background, as default (it seems silly to NOT charge the battery when using it in petrol / ICE mode). Driving along the motorway, I've also noticed it charges the battery WAY faster than plugging it in to a normal socket at home (waiting for a proper charger to be fitted)

I'm assuming it does use extra fuel, but wanted to check

Thanks all!

Clan	Nov 11th, 2019 10:18

Quote:

Originally Posted by koolade (Post 2570906)

Morning Team

Potentially dumb Q here. The "Charge" button at the top of the screen on the right hand menu.

Does this use EXTRA petrol to charge the battery when enabled or not? If it doesnt use extra battery, then why isn't this featured enabled in the background, as default (it seems silly to NOT charge the battery when using it in petrol / ICE mode). Driving along the motorway, I've also noticed it charges the battery WAY faster than plugging it in to a normal socket at home (waiting for a proper charger to be fitted)

I'm assuming it does use extra fuel, but wanted to check

Thanks all!

yes you cant get energy for nothing so the cost is in fuel ...

Milliner

Nov 11th, 2019 10:43

Never used it myself, but would be interesting to know how much extra petrol is used to charge the battery on a long motorway trip and how that compares to the cost of electricity at home. The B mode and brake regeneration chip in too presumably which is 'free', kind of, depending on how you look at it.

Clan	Nov 11th, 2019 10:51

Quote:

Originally Posted by Milliner (Post 2570937)

The charge function could be useful if you had a no diesel zone which is what will be happening in Bristol City Centre . They have not sorted out the finer details yet but they may let hybrids in if they are running on electricity only ...
You could use CHARGE about 10 miles from the city to get you home on electricity . it does charge pretty fast on this charge function . even better if your journey was down a 5 mile hill before home !

koolade

Nov 11th, 2019 15:55

Quote:

Originally Posted by Clan (Post 2570926)

yes you cant get energy for nothing so the cost is in fuel ...

...Hmm, I'm no scientist but I would argue the motion of the wheels going round would be energy to harness to re-charge the battery! (whether that motion is driven from battery or petrol, it seems ripe to be leveraged)

Anyhow, I'd love to learn more about this feature. The manual is pretty light here I think...

Milliner

Nov 11th, 2019 16:21

Harvesting otherwise 'wasted' energy lost through the braking or engine braking won't cost more fuel, but drawing power from the petrol motor to charge the battery will.

First law of thermodynamics and all that.

TimNiceBut

Nov 11th, 2019 16:26

Quote:

Originally Posted by koolade (Post 2571069)

Well, the wheels going round use energy unless you can eliminate, for instance, gravity, drag and friction. It takes a certain amount of fuel to drive the car. It takes extra fuel to regenerate battery energy unless the aforementioned forces can be overcome.

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