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  1. bapgood

    Battery Internal Resistance Measurements

    Retested the 1200 round nano's after charging and they were about the same ~42mΩ. However DrMA brings up a good point that I overlooked.....break in All the batteries tested except for the round nano's should be good and broke in. The nano's haven't really been used, so that might skew the...
  2. bapgood

    External fuse for both overcurrent and reverse polarity protection with the DNA...

    lol....I had to think twice the first time I read your OP.....I was thinking this won't work because the fuse doesn't care about polarity and etc....then I realized what was confusing me was that there is no way to really test it without hooking it to a DNA.....Bravo to you for that!!!
  3. bapgood

    The "WeekEnder"

    So the middle cell was lower, but not by a lot. On Mamu's raptor she indicated "Metering the batts, the dominant batt read 2.75v and the other read 3.44v" so almost 0.75v. Do you always use 3S with the LM? Oh and you need one of these so you don't have to take video.....or wait :D
  4. bapgood

    The "WeekEnder"

    Have you ever looked at the balance of the lipo after discharged in one of these mods to see if the the lipo suffers from the same imbalance as round cells in a battery holder?
  5. bapgood

    The "WeekEnder"

    That's like the 6k I have....I think they are very similar in size.
  6. bapgood

    The "WeekEnder"

    Good thing chargers are relatively cheap and typically fairly easily to swap out. I have recently became the inlaws tablet repair service, recently swapped out a screen on a nexus 7 and replaced the USB connector on a kindle fire. Let's just say I much prefer modding ecig stuff :D
  7. bapgood

    The "WeekEnder"

    Yep it works pretty good. I'm not sure what mamu uses but I think she typically does some kind of light pipe. Breaktru posted about using clear weed eater filament. We use clear acrylic rod at work for light pipes and seems to work pretty good.
  8. bapgood

    Battery Internal Resistance Measurements

    Yes to some degree....how much of a change....idk???? The real telling thing that I haven't even tried to look at is IR under load.
  9. bapgood

    Battery Internal Resistance Measurements

    Turnigy nano round cells 800/900/1200mAh all at around 3.95v.....all were right around 42mΩ....testing at the leads on the batteries....I tested three of the 1200's....I have two 1200's charging and will see if there is any difference at full charge. I wouldn't say to necessarily stay away from...
  10. bapgood

    Battery Internal Resistance Measurements

    All of the batteries except the lipo were fully charged....some had been setting for a while.....the lipo was almost drained ~3.6v IIRC. I have always been with you DrMA....I just like to have the means of testing and comparing. Some of the 18650's are getting pretty good....I ordered some of...
  11. bapgood

    Battery Internal Resistance Measurements

    ΩΩΩΩΩΩΩΩΩ....Ha!!!!! I just got the Greek keyboard for my phone and Bobs your uncle. BTW the meter also works great great it wattage mode to give you voltage/amps/watts/etc and keeps the max values afterwords. Just have to have power to the balance port for 1S voltage.
  12. bapgood

    Battery Internal Resistance Measurements

    How about on my phone :lol: IIRC it would alternate between 0 and 1. Like I said this was a relatively cheap meter and I'm sure it's not 100% accurate, but it should be accurate enough to compare battery to battery.
  13. bapgood

    Battery Internal Resistance Measurements

    Small m not big M :D
  14. bapgood

    Battery Internal Resistance Measurements

    I don't know how to make the ohm symbol, but it is reading in milliohms. I'm sure it's not the most accurate in absolute terms, but it should be accurate enough to compare readings from the same meter.
  15. bapgood

    Taifun GT Discusion!

    I took some battery internal measurements. If your interested the results are here - http://www.e-cigarette-forum.com/forum/battery-mods/510566-battery-internal-resistance-measurements.html
  16. bapgood

    Raptor Flip-Top VV Mod with 20A, 120W dc/dc converter...

    Here are some battery internal resistance measurements I took if anyone is interested - http://www.e-cigarette-forum.com/forum/battery-mods/510566-battery-internal-resistance-measurements.html#post11779441
  17. bapgood

    The "WeekEnder"

    Sure is :D
  18. bapgood

    The "WeekEnder"

    Measurements - http://www.e-cigarette-forum.com/forum/battery-mods/510566-battery-internal-resistance-measurements.html#post11779441
  19. bapgood

    Battery Internal Resistance Measurements

    Here is some battery internal resistance measurements I got using the Turnigy 7 in 1 from Hobby King. Take notice that I get a significantly different reading when the battery is in a battery holder or even off soldered lead wires. Sony 30a 2000mah 18650 (fairly new) in FT battery holder...
  20. bapgood

    The "WeekEnder"

    I have all the parts for my bench top raptor build minus the screen housings :lol:
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