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Author Topic: Can someone explain charging to me? :)  (Read 866 times)

TheRan

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Re: Can someone explain charging to me? :)
« Reply #15 on: August 09, 2022, 09:05:21 PM »

The battery voltage is going to be lower than what the charge station is putting out. For example when his display was reading 22A and 2.2kW that means the battery voltage was at 100V, fully charged it would be around 116V so the current would drop to around 19A if it maintained the same 2.2kW. If the charge station is putting out say 220V then you could pull 10A from it for that 2.2kW but it would be more than double the current going into the battery from the on board charger.
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opengl

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Re: Can someone explain charging to me? :)
« Reply #16 on: August 09, 2022, 09:55:11 PM »

^^ Exactly. Watts = Volts X Amps. The battery runs 100V-ish so it's quick math.
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2020 Zero SR/F
2019 KTM Duke 390
2014 Yamaha FJR1300
2006 Honda 919

zend

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Re: Can someone explain charging to me? :)
« Reply #17 on: August 14, 2022, 09:00:41 PM »

The 2020 SR/S has up to three charging modules. A standard edition has a single 3kW AC unit physically tucked on top of the battery. The Premium edition has a second 3kW unit nestled next to it. The Rapid Charger is a 6kW unit that stacks on top and more or less fills up the 'tank pocket'.

Thanks for explaining this, @Mvetter!

I'm in the US and have a new 2022 SR/S (non Premium).  Do you know whether or not my bike would have come with that second 3kW unit you describe as being nestled next to the battery? The Cypher Store Builder suggests that I'll be able to add 100% Faster Charge to my bike for $1,495 and I'm trying to understand if, in practice, that means that they included that second charger and $1,495 is the cost for unlocking it.

I didn't fully understand this when I bought the bike but as it stands, the bundled L1 charger gets me 1.4kWh. L2 (either at home on my 50A L2 charger or at a ChargePoint station) gets me 3kWh. If that additional charger really is bundled on the bike, am I correct in assuming that if I pay the $1,500, it will have no impact on L1 but would let me get ~6kWh off a L2?

What's the 10% thing do? That's seems even sillier.

Man...the Cypher Store idea didn't bother me all that much when I was considering my purchase but now that I'm looking at a total of $4,295US to unlock everything, I'm pretty turned off by the whole thing.
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MVetter

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Re: Can someone explain charging to me? :)
« Reply #18 on: August 14, 2022, 09:38:47 PM »

If you'd only kept reading down further on the same post you'd have seen the following:

Quote
Now, to FURTHER confuse things, Zero scrapped this setup with the model year '22 SR/S and SR/F bikes. Instead of two smaller 3kW chargers, they have introduced what is known as the "Flat 6". This is a single 6kW unit that, on standard edition bikes is set to deliver only 3kW unless you upgrade it to 6kW via a software unlock from the upcoming Cypher Store.
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zend

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Re: Can someone explain charging to me? :)
« Reply #19 on: August 14, 2022, 10:08:39 PM »

If you'd only kept reading down further on the same post you'd have seen the following:

Quote
Now, to FURTHER confuse things, Zero scrapped this setup with the model year '22 SR/S and SR/F bikes. Instead of two smaller 3kW chargers, they have introduced what is known as the "Flat 6". This is a single 6kW unit that, on standard edition bikes is set to deliver only 3kW unless you upgrade it to 6kW via a software unlock from the upcoming Cypher Store.

Ahh....sorry for missing that. Wasn't laziness on my part....I think I filtered that out because it was below a long underline and my brain assumed that everything below that line was just a signature.

I don't think my dealer understood this and I certainly didn't until this moment. Thanks very much for the info.
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Tony

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Re: Can someone explain charging to me? :)
« Reply #20 on: August 14, 2022, 10:59:50 PM »

I got the Zero back from service now, so I could snap some pics of the cable and charging screen. The cable is of type 3 phase and 32A.

I now got a more sensible 27A and 2.9kW speed on the charger marked 7.3kW, indicating a single phase charging station almost able to max out one of the two 3kW receivers on the bike. That makes more sense than the 2.3kW I saw before the service was done on the same charger, so seems the fixes they did (replace faulty wiring, update to latest firmwares) helped the charging speed.  8)

Question: Since the cable is marked as 32A, would that mean I get 32A per phase max? I am sure I have seen A in the range 50-60 while charging at a more powerful phase 3 charger.
« Last Edit: August 14, 2022, 11:34:34 PM by Tony »
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SandyGnomes

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Re: Can someone explain charging to me? :)
« Reply #21 on: August 15, 2022, 12:17:26 AM »

Those are mains voltage amps on the cable rating.  They are per phase though but your Zero will actually only be pulling about 15A at the mains per phase, which will be around 30A per phase battery current.  I tend to talk in kW, it makes life easier when voltages are changing.
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- 2021 Zero SR/S Premium

MrBlc

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Re: Can someone explain charging to me? :)
« Reply #22 on: August 19, 2022, 08:40:50 PM »

I got the Zero back from service now, so I could snap some pics of the cable and charging screen. The cable is of type 3 phase and 32A.

I now got a more sensible 27A and 2.9kW speed on the charger marked 7.3kW, indicating a single phase charging station almost able to max out one of the two 3kW receivers on the bike. That makes more sense than the 2.3kW I saw before the service was done on the same charger, so seems the fixes they did (replace faulty wiring, update to latest firmwares) helped the charging speed.  8)

Question: Since the cable is marked as 32A, would that mean I get 32A per phase max? I am sure I have seen A in the range 50-60 while charging at a more powerful phase 3 charger.

32A on the cable means 32 per phase yes. That range you've read is what is going into the battery, not what's coming from the charge station.
In .no, using type2 mode3 charging, you will only see stations marked 3.6 kW, 7 kW, 11 kW, 22 kW and in some rare outdated cases supporting the older generations of Renault Zoe, 44 kW.
DC charging on the other hand is a totally different bag of tricks and numbers.. :P
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