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Thread: Battery Discharge Graphs and comparisons

  1. #1
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    Battery Discharge Graphs and comparisons

    14500 1 amp.jpg16340 1A.jpgIMR 10A.jpgprotected comparo 5A.jpgunprotected batts 5A.jpg
    Thought I would start putting up some graphs for some batteries that may be vaping related. I have heaps of tests of many batteries but will stick to the popular ones for now.

    It's getting a bit late so I'll just put up the graphs and come back and comment later.

    Just a note, there is a 60mv loss per amp on the left axis that seems to happen on every machine I have and is the best I can get it using gold contacts, clamps and thick short wires. Total loss through connections and cables total less than 5mv per amp, the rest is in the machines. So if it says 2.2 volts at 5 amps, it is really 2.5 volts at the battery etc. but it's all relative anyway.


    from left to right.

    14500's at 1 amp 16340's at 1 amp, a couple of batteries at 10Amps, protected batteries at 5amps, unprotected batteries at 5amps.

    I put in a couple of popular ebay ones in there just to give a relative indication of what we are looking at. Two of the best sellers (thousands sold) are in there. Namely Ultrafire 4000mAh from ebay australia and blue 16340's from ebay USA.
    lastchance likes this.
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  2. #2
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    Bit hard to see the colours. May edit pictures later.
    Oh, bottom axis is time (seconds)
    Last edited by supersports600; 15-10-12 at 01:15 AM.
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  3. #3
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    the ebay 16340 jobby certainly sucks.

    what do you use to test with ?
    In order of useful: Provari V2 and V1, vamo, eGo twist, Katana v3, Hex, Orion v2, LavaTube, eGo x 6, VMAX, 510N, Tick V2, Tick V1, noEgo 18650, noEgo 14650 , Indulgence x 2, 905 6v mod, KR808D



  4. #4
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    Quote Originally Posted by Stoney View Post
    the ebay 16340 jobby certainly sucks.

    what do you use to test with ?
    Yeah, unfortunatley there are plenty around like that. I picked a couple of comparo's that don't cross over so much and easier to read.

    0to1 amp, imax b6, 1-5amp imaxb8+, 5-10 amps imaxb8+ and imaxb8. Logview software. I used to use a $600 jig before I blew it up and found it to be no more accurate than the plain old Imax. They do have a limited hidden calibration feature. There is also a components kit to help improve accuracy but I don't think its worth it. If you know where the inacuracies are, you can compensate eg, the B8 draws 5.05amps at 5 amps and the B8+ 4.95 amps at 5 Amps. But being relative, it doesn't really matter as long as all batteries are treated the same.

    I'll put some more up later. The AW's in 18500 and 18350 size seem to be really good.
    Last edited by supersports600; 15-10-12 at 05:20 PM. Reason: added 18350
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    hey SS,
    I've got an Imax C-403 that I used to use to charge 18650's one at a time in.
    Is this a charger i should look at using instead of my Ultrafire/trustfire Dual battery charger? and will it look after the batteries better?
    Just interested cause from memory everything on the iMax used to come off at 4.2V where the other seems to be 4.1V even with new batteries.

    ps, when you gonna start stocking AW's in 18500 and 18350 size
    Quit date : 10/5/2011

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    I have been charging virtually all of my batterys with an imax B6 for a year or so, its not so good on protecteds, it was not designed for it so it takes longer and slows to a trickle due to fixed 4.2v output, it also needs good solid wiring and decent clamp to work at much more than 1A or so.
    Its nice to see the mAh being put into each cell as you go though. Lets you know if there is something odd going on with the mod or give you an idea how low you went with a mecha mod.
    In order of useful: Provari V2 and V1, vamo, eGo twist, Katana v3, Hex, Orion v2, LavaTube, eGo x 6, VMAX, 510N, Tick V2, Tick V1, noEgo 18650, noEgo 14650 , Indulgence x 2, 905 6v mod, KR808D



  7. #7
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    Quote Originally Posted by D1git View Post
    hey SS,
    I've got an Imax C-403 that I used to use to charge 18650's one at a time in.
    Is this a charger i should look at using instead of my Ultrafire/trustfire Dual battery charger? and will it look after the batteries better?
    Just interested cause from memory everything on the iMax used to come off at 4.2V where the other seems to be 4.1V even with new batteries.

    ps, when you gonna start stocking AW's in 18500 and 18350 size
    couple of things, with the imax, there are two settings, LiIon (4.1v) and LiPoly. Make sure it's on LiPoly (4.2V). If so, then put a volt meter on the battery (not the contacts) and compare the voltage to the imax. If it is out, there is a calibration setting holding buttons while turning on, to fix it. Can check it out later , at work till late tonight, typing fast. Also, check contact resistance in connections snd springs. If you charge at 1 amp, it will terminate at 100ma but if resistance is high, voltage drop will be high. To fix, do second charge at 0.2 amps and it will terminate at 20ma. Better for batt not to charge to 4.2 anyway.

    There are two common ultrafire chargers. One pulsates the crap out of it with minicycles. 2 steps forward and one step back, wears the battery out very quickly, bad design. Charges and discharges at the same time and pushes voltage up to over 4.3v to end at 4.2. Put voltmeter on battery while charging to check it out. Battery ends at 4.2v but when you test capacity, it will be down by 20% compared to a clean charge. As far as I know, both ultrafires have 1 power source and a switching thingy so charge time slower with 2 batts instead of 1.

    Imax is clean. Soshine is clean and indepndant. Both better for the batt but in reality, you will probably wreck the battery in other ways before you wear it out. (with quality cells that is). haven't checked xtar but it is 500ma charge which is very slow for high capacity batts so haven't bothered with it. Multichannel chargers are much more convienient that using imax, but both will do the job

    sorry about rushed response
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  8. #8
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    oh, and anyone who bought an early ECDmeter and got the USB dongle has all the tools needed to use logview software if they get an imax B6 or B6AC.
    the connector on the side puts out TTL serial data at 9600 baud.
    WokinDog likes this.
    In order of useful: Provari V2 and V1, vamo, eGo twist, Katana v3, Hex, Orion v2, LavaTube, eGo x 6, VMAX, 510N, Tick V2, Tick V1, noEgo 18650, noEgo 14650 , Indulgence x 2, 905 6v mod, KR808D



  9. #9
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    Quote Originally Posted by Stoney View Post
    I have been charging virtually all of my batterys with an imax B6 for a year or so, its not so good on protecteds, it was not designed for it so it takes longer and slows to a trickle due to fixed 4.2v output, it also needs good solid wiring and decent clamp to work at much more than 1A or so.
    Its nice to see the mAh being put into each cell as you go though. Lets you know if there is something odd going on with the mod or give you an idea how low you went with a mecha mod.
    Which protected cells are you using? If the PCM has high resistance, it will slow down the saturation phase by heaps due to voltage drop.

    Should be ok with quility protected, you will notice it gives a big zap before it comences to wake them up if need be.
    Shop at Supersports600 eBay Store for all your Battery and Nicotine testing needs

  10. #10
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    Quote Originally Posted by Stoney View Post
    oh, and anyone who bought an early ECDmeter and got the USB dongle has all the tools needed to use logview software if they get an imax B6 or B6AC.
    the connector on the side puts out TTL serial data at 9600 baud.
    I thinks that's a bloody great idea and was hoping to getting around to figuring out the hookup.
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