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  • Bad Raven: I would'nt know but obviously you have had the experience.....  :evil
    June 17, 2018, 13:08:09
  • shawdreamer: his boyfriend couldnt wait..... :whistling:
    June 17, 2018, 11:58:37
  • hoverfly: Keckon, is usually the result of typing with your mouth full. :whistling:
    June 16, 2018, 16:37:24
  • Bad Raven: Keckon???  Where did THAT come from??
    June 16, 2018, 16:13:17
  • Bad Raven: I keckon you have bootleg Domino's................  And HF , I ALWAYS give a tip, it's "don't upset me"....
    June 16, 2018, 16:08:46
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    June 16, 2018, 13:19:02
  • hoverfly: Blue boxes are used to indicate to the delivery bloke they won't get a tip at that house.. :laugh:
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  • Bad Raven: And on another more important matter, wny is your domino's box red, ours are blue!!!   :blink :laugh:
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    June 15, 2018, 23:47:19
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    June 15, 2018, 22:41:37
  • shawdreamer: oh it'll fly...... like a piece of 5hit with a big arse motor attached..... but it'll fly :laugh:
    June 15, 2018, 22:25:24
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    June 15, 2018, 22:14:50
  • DarkButterfly: :smiley:
    June 15, 2018, 21:02:23
  • DarkButterfly: Need to get some electronics on this and see if it flies [link]
    June 15, 2018, 21:02:14
  • atomiclama: I used the solder ones [link] as I do't have a crimp tool and should be able to reuse the connector if required
    June 15, 2018, 14:50:33
  • VaNDAL_UK: Nice one. I'm gonna go for it. just looking for the SMA connectors with the crips as Ive had a few break at the root.
    June 15, 2018, 14:44:53
  • atomiclama: these are my first attempts, got better since then [link]
    June 15, 2018, 10:57:11
  • atomiclama: Yeah could've got mine cheaper but wanted it in reasonable time. Go for it, It's rewarding to see something you have made yourself.
    June 15, 2018, 10:54:38
  • VaNDAL_UK: atomiclama: I was pricing up the cable 0.08 copper wire and SMA connectors came out to about £15 and I could have made 5 meters worth of antennas!
    June 15, 2018, 10:31:48
  • hoverfly: Betaflight RC1...Interesting  if you go to the O.S.D  settings and then change the font  by lining up the icons in the correct precise order then hit  enter,...... It opens up the  O.C.D.  screen. :smiley:
    June 15, 2018, 09:01:13

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Author Topic: How to measure one cell lipo with a GT Powr Battery Controller/Checker?  (Read 513 times)

Offline Two-Six

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I have one of these:
https://www.banggood.com/GT-Power-Capacity-Lipo-Battery-Tester-With-Balance-Function-For-RC-Models-p-989621.html?cur_warehouse=CN

I want to be able to make a little lead/adapter to measure the voltage of a one cell lipo using this thing but I can't make it work. 

I am not sure which connectors to use.  I am also not sure if it will work at all with just one cell.

Any suggestions as to how I should hook up the battery or as to why it doesn't work?
Nighthawk Pro, Trex 450 L Dominator 6 cell *FLOWN*, Blade 450-3D, MCPX-BL, MCPX-V2, Hubsan X4, Seagull Boomerang IC .40 trainer, HK Bixler, AXN Clouds fly,, Spektrum DX7, Taranis, AccuRC

Offline Bad Raven

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Don't know that SPECIFIC checker, but many (if not most) will not work on only 3.?? (used battery) supply as they cannot drive the internal cct and display.

I have done it OK with SOME of the tiny checkers by making a 3S balance plug to various 1S battery connections.

One of the ISDT checkers I have will display 1S, but you have to make connections to the balance port.

Offline mo_miah

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easiest way to check a 1s lipo is with a multimeter
multimeters, even a cheap one, is a must have in my opinion for anyone working with electrics
just measure to output voltage on the output lead

Offline jamesb72

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Some of the cheap led checkers which flash through total volts and each cell voltage work down to 1s, i made a harness with all the usual connectors so i can check small lipos.

The one i used is like this one

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F122933775359

Offline trebor

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Depends on your 1 cell battery connection there all different. Most of these only go down to 2 cell for attaching your lipos https://www.banggood.com/JST-XH-Balance-Port-Adapter-for-Chargers-p-1060396.html?rmmds=search&cur_warehouse=CN

Offline trebor

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Here is a good picture  ~~ http://www.4-max.co.uk/gt-lipo-capacity-tester.htm

Not sure if this will fit your lipo, down near the bottom of the list  http://www.4-max.co.uk/cables.htm

I've got this meter might be the same controls without the wattmeter  http://www.4-max.co.uk/pdf/GT-Multifunction-Watt-Meter.pdf
« Last Edit: March 10, 2018, 09:48:17 by trebor »

Offline Two-Six

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Thanks for the info!  Those little battery checkers look good.  I do have a multi-meter or two, its just the pins are so small its a bit fiddly measuring the cell voltage.  I was just wondering why I couldn't use my existing battery checker. That thing about about one cell not having a high enough voltage to power it makes sense.

When I fly my new XK K110 helicopter, if I fly to my timer they usually end up at almost exactly 3.80 volts, perhaps I could push another minute out of them. 

This heli is still in the experimental stage...It works pretty well now I have almost sussed out the gyro in it, which has the ability to stabilise it so much its totally unflyable it is so docile at one end of the scale and so agile that it is a real handful and needs very delicate control inputs at the other end of the scale.  I have got it just about right now. Agile and nippy but with a little stabilisation.
Nighthawk Pro, Trex 450 L Dominator 6 cell *FLOWN*, Blade 450-3D, MCPX-BL, MCPX-V2, Hubsan X4, Seagull Boomerang IC .40 trainer, HK Bixler, AXN Clouds fly,, Spektrum DX7, Taranis, AccuRC