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Old 07-07-2015, 01:31 PM   #1 (permalink)
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Default e-fuel gauge 150A pro

Is it safe to use the e-fuel gauge 150A pro when I occasionally have spikes around 200A? Is 150A the continuous rating?
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Old 07-08-2015, 03:06 PM   #2 (permalink)
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Check the website... I saw peak spike rating up to 1000 amps. It's in the manual as well. The weak link is the end users solder capability / skill set.
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Old 07-08-2015, 03:56 PM   #3 (permalink)
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And yes, 150A is the continuous rating.
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Old 07-09-2015, 01:10 PM   #4 (permalink)
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Thanks for the info. Wow..1000 amps?? I see it on the page now http://www.tje.dk/efuelgauge/
I unsuccessfully tried the jlog on my CC HV 120 with a spectrum. Now that I have switched to the 14SG, this looks like a great option for monitoring mah used.
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Old 07-09-2015, 05:15 PM   #5 (permalink)
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I've been using them for a while now with my 14SG and am super happy with them!
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Old 07-10-2015, 07:20 AM   #6 (permalink)
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I just installed one on my E5s and like it. Just remember to set your limits correctly if you use more than 1 pack. Series packs add voltage, but the capacity stays the same (12c 5000 mAh stick packs, set your limit based off 5000, not 10000). I found that the hard way, I should have known, and the first pack I flew, I put over 95% back in!!
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Old 07-19-2015, 11:20 AM   #7 (permalink)
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Yes, the standard sensor is 150A version. The same sensor is available from 50A - 200A, only the magnetic gain circuitry is trimmed differently.

So actually, 200A continuous current is supported, but the 150A sensor saturates just above 160A, and will not count correctly for that high currents. In reality, these spikes should be rather short (unless we're talking hotliners). Check the sensor datasheet by googling "Allegro ACS758".

As correctly mentioned, the weak point will be the cable-soldering onto the solid copper (1x4mm) pins of the sensor itself. For crazy-high currents, you can simply short the sensor using 10cm 10AWG wire, and the current will divide between the wire and the sensor. It will require re-calibrating in-site, but is doable. This has been done succesfully for >400A applications.

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Old 11-05-2015, 03:36 PM   #8 (permalink)
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I finally decided to go with the e-fuelgauge on both of my goblins and it is awesome. Not only does it save your batteries from over discharging, but there is an alarm when you accidentally plug in a discharged pack. I was a little concerned that transmitting telemetry data may degrade 3D flight performance and I have not noticed any change in responsiveness.

Tucked nicely under my KSE 700.
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I could of went with the smaller one on my 570, but I found a good place to mount the pro. It even has a soul patch to protect it from canopy rash!!
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Here are some metrics from my KSE 700. There is a slight variance in what the charger is putting back in, but it is in the acceptable range.
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Old 01-22-2016, 07:42 PM   #9 (permalink)
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Where can you get the efuelgauge in the USA?
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Old 01-24-2016, 09:18 AM   #10 (permalink)
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There not available in the US. You have to order them from here. http://shop.tje.dk/catalog/index.php...f1s87fjuslh932. HTH
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Old 01-26-2016, 09:23 PM   #11 (permalink)
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Mine came from Fast Lad in the UK, but they are out of stock at the moment.
http://www.fast-lad.co.uk/store/adva...e-fuel&x=0&y=0
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Old 01-27-2016, 12:07 PM   #12 (permalink)
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I just placed my order directly from the website yesterday. Used PP. It will be a couple of weeks because of low stock and shipping. It was great to be able to email Thomas with all my questions and get direct answers.
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Old 10-11-2017, 01:29 PM   #13 (permalink)
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Just ordered a few myself. Looking forward to having the info at our fingertips going forward.

Does the flight pack voltage display in the 14sg screen also?
The video he shows it, but the voltage wasn't showing up.
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Old 10-11-2017, 01:31 PM   #14 (permalink)
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I see your review on the e store site Rodney.
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Old 10-11-2017, 01:36 PM   #15 (permalink)
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Quote:
Originally Posted by vburge View Post
. There is a slight variance in what the charger is putting back in, but it is in the acceptable range.
Attachment 617867
I wonder if there is some way of 'adjusting' the counter to make the numbers match closer? something like 98%

At least its erring on the higher side, so you can set your alarm for 82% and land with 80 I suppose.
Doesn't seem like its very far off.. 50-150 mah
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Old 10-11-2017, 04:10 PM   #16 (permalink)
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Quote:
Originally Posted by smittylube View Post
I see your review on the e store site Rodney.
I just bought another one recently for my 516.

Thomas is a super nice guy and more than happy to answer any questions you have if you have any, or have any issues.
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Old 10-11-2017, 08:46 PM   #17 (permalink)
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I just ordered 2 of the new magnetic ones from Thomas. I have 2 of his 150A and love them.
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Old 10-16-2017, 12:54 AM   #18 (permalink)
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Anyone using this on the RX pack on an nitro/gasser heli? I'm sure the sw isn't designed for multiple cumulative sessions on the same pack, so just have to write down mah consumed after each flight? Can it handle LiFe as well as Lipo?
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Old 10-17-2017, 09:57 PM   #19 (permalink)
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The one we use is not for that. And this one has cumulative setting if needed.

He now has a new small one, possibly would work, not sure id trust it.
I just use an external voltage sensor with my opto and my nitro. Don't fly lower than 7.5v

And it's best to check it with a load, but I haven't been lately.
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Old 10-17-2017, 10:02 PM   #20 (permalink)
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Got my EFG mounted and sorted out.
MAH works great, voltage warning when you plug in works, that's a safeguard so you know if your pack is charged.

What a slick setup. I bought a few for my e helis.

First flight I already could have gone another minute easy- 100% worth the money and effort.
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