Ah

[Peter Ball]

Hi, We walked round Rutland water today and into their bike shop. Now being a bit of a numpty with Lecky bikes I noticed all theirs were advertised showing Wh and not Ah most were either 400 or 500 Wh. when I asked the assistants how this converts to Ah they couldn't answer the question.

Is there a conversion or does this mean something completely different?

 

[GLJoe]

Hi, We walked round Rutland water today and into their bike shop. Now being a bit of a numpty with Lecky bikes I noticed all theirs were advertised showing Wh and not Ah most were either 400 or 500 Wh. when I asked the assistants how this converts to Ah they couldn't answer the question.

Is there a conversion or does this mean something completely different?

I think it means you might want to consider visiting a different ebike shop ;-)

 

[brightonebikes]

Hi, We walked round Rutland water today and into their bike shop. Now being a bit of a numpty with Lecky bikes I noticed all theirs were advertised showing Wh and not Ah most were either 400 or 500 Wh. when I asked the assistants how this converts to Ah they couldn't answer the question.

Is there a conversion or does this mean something completely different?

DIvide by the voltage to get Ah.

Sent from my E5823 using Tapatalk

 

[flecc]

Hi, We walked round Rutland water today and into their bike shop. Now being a bit of a numpty with Lecky bikes I noticed all theirs were advertised showing Wh and not Ah most were either 400 or 500 Wh. when I asked the assistants how this converts to Ah they couldn't answer the question.

Is there a conversion or does this mean something completely different?

Just divide by the voltage of the battery, that's leaves the Ampere hours.

Watt/hours is more useful since it gives the total current available. For example you might see two e-bikes both with 10 Ah batteries, but the one with a 26 volt battery only has 260 W/h, while the one with the 36 volt battery has 360 W/h, 38% more current potential.

N.B. Crossed with Brighton e-bikes post.
.

 

[brightonebikes]

DIvide by the voltage to get Ah.

Sent from my E5823 using Tapatalk

So my 36V 522Wh battery equates to 14.5Ah.


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[Andy Bluenoes]

Which has the most range potential.....36v 13ah or 48v 12ah?

 

[VictoryV]

Which has the most range potential.....36v 13ah or 48v 12ah?

36x13=468, 48x12=576 - the larger the resulting figure the greater potential range

 

[Gubbins]

Just buy one with the biggest you can afford.

 

[brightonebikes]

Just divide by the voltage of the battery, that's leaves the Ampere hours.

Watt/hours is more useful since it gives the total current available. For example you might see two e-bikes both with 10 Ah batteries, but the one with a 26 volt battery only has 260 W/h, while the one with the 36 volt battery has 360 W/h, 38% more current potential.

N.B. Crossed with Brighton e-bikes post.
.

...but flecc provided a far superior explanation, go with that!

 

[brightonebikes]

36x13=468, 48x12=576 - the larger the resulting figure the greater potential range

Spot on. I was going to reply simply 'You do the Math'! *with American accent.

 

[Russelliow]

P=VI or power=volts×amps

 

[Gubbins]

P=VI or power=volts×amps

Why does it have to be so complicated? It would be so much easier to give it a number! How big is your battery? It's a size 11.

 

[brightonebikes]

Why does it have to be so complicated? It would be so much easier to give it a number! How big is your battery? It's a size 11.

Wow, yours goes up to 11 !
Crank it up then!

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[flecc]

Why does it have to be so complicated? It would be so much easier to give it a number! How big is your battery? It's a size 11.

Not so sure, could end up like shoes, size 11 wide fit or size 11 narrow fit etc.

I think only an improvement in schools teaching is necessary. The public understand gallons and litres, Watt/hours are the electricity equivalent and no more difficult, just a quantity.

I daresay there will be more understanding as more e-vehicles are brought into use. For example Nissan don't speak of voltage or A/h on the Leaf e-car, they just say the kW/h capacity of the battery. Their standard battery is 24 kW/h,. the longer range one 30 kW/h.

Simple.
.

 

[Gubbins]

Not so sure, could end up like shoes, size 11 wide fit or size 11 narrow fit etc.

I think only an improvement in schools teaching is necessary. The public understand gallons and litres, Watt/hours are the electricity equivalent and no more difficult, just a quantity.

I daresay there will be more understanding as more e-vehicles are brought into use. For example Nissan don't speak of voltage or A/h on the Leaf e-car, they just say the kW/h capacity of the battery. Their standard battery is 24 kW/h,. the longer range one 30 kW/h.

Simple.
.

It must be my age... I know what a pound of Apples looks like, I can even visualize a kilo of Apples.... but a litre of Apple's has me beaten.[emoji27]

 

[mike killay]

But 24,000 watt hours sounds so more impressive,
at least better than my 360 watt-hours.

 

[flecc]

But 24,000 watt hours sounds so more impressive,
at least better than my 360 watt-hours.

Until you strap it on your carrier.
.

 

[Gubbins]

Easy wheelies

 

[flecc]

It must be my age... I know what a pound of Apples looks like, I can even visualize a kilo of Apples.... but a litre of Apple's has me beaten.[emoji27]

I would hope so, a litre is a liquid measure.

By the same virtue a gallon of apples is no easier to judge.
.

 

[Gubbins]

I would hope so, a litre is a liquid measure.

By the same virtue a gallon of apples is no easier to judge.
.

I thought I was being clever by saying litres ... when actually using old money is much easier.. I can visualise a gallon bucket full of Apple's. But not a watt hour of sparks. I used to use the old one bar one kw electric fire to decide how much juce things used but it's gone way past that now.