zeldamum
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Post by zeldamum on Jul 24, 2014 10:31:39 GMT
I am not very good when it comes to voltages etc.
A customer popped in to check the voltage of the Kangertech charges I have so he could compare it to his Liberty Flights, both said 4.2.
The Vision Spinner 1 he is charging goes up to 4.8v.
The customer said that you wouldn't be able to get 4.8v out of the Spinner if the input is only 4.2v
If this is correct (and I am not doubting the customer, just don't know) why does the Spinner go upto 4.8, seems a bit pointless.
Sorry if I come across as seeming totally thick, electrics are for electricians.
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fred
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Post by fred on Jul 24, 2014 10:37:00 GMT
Course you can. I think the technology used is called a buck transformer? ronaldo?
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VapingBad
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Post by VapingBad on Jul 24, 2014 10:38:14 GMT
There is a conversion circuit inside that boosts the voltage like Vamos and DNAs, the batteries inside do have a max voltage of 4.2 V.
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arron
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Post by arron on Jul 24, 2014 10:46:33 GMT
Agreed with the above, inside the PCB is an amplifying circuit
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zeldamum
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Post by zeldamum on Jul 24, 2014 10:49:47 GMT
Cool thank you
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ruffdog
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Post by ruffdog on Jul 24, 2014 10:50:33 GMT
within reason with transformers you can make any battery deliver a much higher voltage. think camera flashes, tazers, VV e-cig devices etc. With some valve equipment of yesteryear (and modern Ham radio and audio amplifiers for example) you have a bloody great transformer inside to up the voltage to kilo-volts.
It's all just electrical magic and i wouldn't' get bogged down in it, BUT your customer is talking bollox, the output on the charger has nothing to do with what the device is capable of once charged. the battery will only charge to 4.2v regardless but as stated, you can use magic to make it deliver more than 4.2 volts to an atomizer.
ruffie. x
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charliehorse
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Post by charliehorse on Jul 24, 2014 10:54:02 GMT
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DiscoDes
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Post by DiscoDes on Jul 24, 2014 11:15:28 GMT
The Spinner 2 has a "voltage buck/boost circuit" BUT possibly more important is that what this circuit does is keep the output voltage stable while the voltage in the battery drops as it discharges. So the battery comes off the charger at 4.2v (ish) and gradually discharges with use down to about 3.6v when circuitry cuts off to stop the battery being discharged too much avoiding damage. However you set it on the dial at say 3.9 volts output, so initially the circuits limits (buck's) the 4.2v from the battery to 3.9 volts then as the battery discharges the circuitry boosts the voltage to 3.9 volts keeping it vaping the same. Standard Ego's work the same as this, giving a constant 3.7 volts as they're not adjustable, Riva's (Ego Clone) were known to give the full battery output at the atomiser gradually falling as the battery discharged, both still have the circuitry to stop the battery over discharging.
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ronaldo
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Post by ronaldo on Jul 24, 2014 18:10:00 GMT
all good answers but zeldamum remember your vamo goes up to 6v and your battery is no where near that
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zeldamum
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Post by zeldamum on Jul 24, 2014 18:45:35 GMT
all good answers but zeldamum remember your vamo goes up to 6v and your battery is no where near that Very true. Thank you everyone. Next time I see the customer I can explain it to him.
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hijack
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Post by hijack on Jul 24, 2014 19:02:11 GMT
Show him this My SVD with a voltage checker on the end
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ruffdog
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Post by ruffdog on Jul 24, 2014 19:17:24 GMT
Show him this My SVD with a voltage checker on the end Now is that 2 stacked 18350's ? I ask because I know you can only go to 11w with an 18650. I've never tested the voltage output though. ???
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hijack
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Post by hijack on Jul 24, 2014 19:21:11 GMT
No its an 18650 ruffdog Why do say you can only go to 11w? I think the mod has a 5A limit and 15W limit whichever it hits first
The steamengine calculator I noticed has a new Mod range section on it steamengine Don't know how useful it is but I think it can give a gauge between max power and adjustability on your VV/VW mod.
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ruffdog
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Post by ruffdog on Jul 24, 2014 20:16:11 GMT
Was thinking svd which states you canny get the full 15w unless you stack 2 x 18350 batts.
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hijack
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Post by hijack on Jul 24, 2014 20:53:52 GMT
I think it depends on the resistance and higher resistance coils >2.4 can struggle to hit 15W But a 1.5 using a 18650 hit 15w ok PBasardo has done his thing with the oscilloscope, and it seems to perform very well with a 18650 around the 1.5 Ohm range. PBasardo SVD
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