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Testing new battery with ohms meter
2875 37 2015-4-28
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Gerry1124
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I just bought a new 6000 MaH battery and when I connect it to the PT2 program, it says it is a 5200 MaH battery.  Is there a way to test the battery with an ohms meter to see just what it is?
2015-4-28
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Gerry1124
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this is the battery and the readout from the PT2 program.
6000 mah battery.jpg
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2015-4-28
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JtrJr-Droner
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Gerry1124 Posted at 2015-4-28 19:51
this is the battery and the readout from the PT2 program.

Gerry,

Not sure how to test it. If someone else doesn't chime in first I'll take a look later today. There's got to be a way, just not sure how the connections work on the battery. It is interesting that you've obviously got a 6000 in your hand showing 5200 in the software. I'll be following this one.

Jerry
2015-4-28
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Gerry1124
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JtrJr-Droner Posted at 2015-4-28 20:08
Gerry,

Not sure how to test it. If someone else doesn't chime in first I'll take a look later tod ...

I think I'll tie it to the floor and run it in the house about 1 foot off the floor until the alarm goes off, then do a 5200 battery and see if it will have a different time.
2015-4-28
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Yug
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Australia
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Gerry1124 Posted at 2015-4-28 20:10
I think I'll tie it to the floor and run it in the house about 1 foot off the floor until the alar ...

I saw a post once where someone put a piece of wood through the legs and weighed the ends of the wood with books.

Save you drilling holes in the floor

Yug
2015-4-28
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johnwarr
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Well if you cant believe the advertising on a Chinese clone battery, who can you trust ?  lol
Personally I would never put anything other than genuine DJI batteries in my Phantom.
Some of these batteries on Amazon are advertising 34 minutes flight time with a Phantom Vision....
2015-4-28
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Gerry1124
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Yug Posted at 2015-4-28 20:13
I saw a post once where someone put a piece of wood through the legs and weighed the ends of the w ...

That's what I'm going to do,  I have some 25 pound weights, tie one on each side with 2 feet of rope and put the seat cushions under it so when it stops running Gertrude won't get hurt.
2015-4-28
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Yug
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Gerry1124 Posted at 2015-4-28 20:16
That's what I'm going to do,  I have some 25 pound weights, tie one on each side with 2 feet of ro ...

Don't forget to turn the egg timer over and over and over...

Yug
2015-4-28
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nrgwise
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First - you never put voltage to an Ohmmeter.  You should read infinity across the smart terminals for resistance and nothing for voltage or amperage.  Across the battery terminals - a volt meter will read the potential stored in the battery but you need to have it in series with the meter with a load to read the amperage.  Not practical really.  If you want, I can try and go home at lunch and get a battery and test it here in the lab and see if I can get anything reasonable.  Can't guarantee I can get home at lunch though.  I can bring one with me tomorrow but that may be too late for your purposes.
2015-4-28
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Gerry1124
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johnwarr@live.c Posted at 2015-4-28 20:14
Well if you cant believe the advertising on a Chinese clone battery, who can you trust ?  lol
Person ...


I got it from Syracuse, NY.  70 miles from me.   UMPA got 1 from Banggood and swears by it.  Perfect performance.
2015-4-28
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Gerry1124
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Yug Posted at 2015-4-28 20:18
Don't forget to turn the egg timer over and over and over...

Yug

Just run the video, that will give me the time.
2015-4-28
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johnwarr
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Yes, but its not a genuine DJI battery, its like this one on Amazon LINK
The few comments seem to suggest that its not really 6000mah.
2015-4-28
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Gerry1124
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nrgwise Posted at 2015-4-28 20:23
First - you never put voltage to an Ohmmeter.  You should read infinity across the smart terminals f ...


That's ok,  I'm just going to tie it to the floor and run the 6000 battery against a 5200 battery to see if I get different times.  That will tell me for sure, but thanks for the offer.  I appreciate it.
2015-4-28
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Gerry1124
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johnwarr@live.c Posted at 2015-4-28 20:27
Yes, but its not a genuine DJI battery, its like this one on Amazon LINK
The few comments seem to su ...

Do you know if the DJI APP will display anything above 5200 MAH?
2015-4-28
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johnwarr
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I don't know for sure, the first comment says it shows 5600mah in the assistant and his genuine one 5200mah...
2015-4-28
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Gerry1124
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johnwarr@live.c Posted at 2015-4-28 20:32
I don't know for sure, the first comment says it shows 5600mah in the assistant and his genuine one  ...


I got this message from the place of purchase.

Hi, We get the confirmation from the technician just now it is really 6000mah .

As the APP only recognize the 5200mah is the original one . so it will just show it is the 5200mah even it is real 6000mah .

The test way is try to fly with this 6000mah battery , it will last longer time than 5200mah .

So pls test it and use i


So, I'm going to strap it to my weights and run it in the house 2 feet off the floor until the battery alarm sounds.
2015-4-28
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JtrJr-Droner
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nrgwise Posted at 2015-4-28 20:23
First - you never put voltage to an Ohmmeter.  You should read infinity across the smart terminals f ...

Well there you go then! And to think, I was going to head down to the shop and just start poking and prodding the little thing later. Sounds like you may have a better way!

Jerry
2015-4-28
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Gerry1124
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JtrJr-Droner Posted at 2015-4-28 20:59
Well there you go then! And to think, I was going to head down to the shop and just start poking a ...


It will be a controlled run so the Phantom will have the same load on it for both batteries.    Thanks for the offer to help.
2015-4-28
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HermosaDrones
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Please post your results, Gerry.
2015-4-28
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Gerry1124
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HermosaDrones Posted at 2015-4-28 22:11
Please post your results, Gerry.

I will, guaranteed.
2015-4-28
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grangerfx
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Stupid question: That's not a DJI battery is it? I don't think they make 6000mAh batteries. Perhaps the software sees it as a standard 5200mAh battery because that's what the battery says it is so that DJI's software will accept it as an official battery? Remember that another battery maker had their batteries so compatible with the DJI software that it was able to install an update to it and brick the battery.
2015-4-28
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Gerry1124
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grangerfx@gmail Posted at 2015-4-29 02:58
Stupid question: That's not a DJI battery is it? I don't think they make 6000mAh batteries. Perhaps  ...

No, it is not an official DJI battery.  DJI has pulled that battery update.  What I was concerned about was the program did not even recognize it as a 6000 MaH.  It said it was a 5200.  Others have 5400 and 6000 MAH batteries and are not having any problems with them.  I was wondering why it didn't reflect the 6000.  I'm going to run it tethered to the floor and compare it to the 5200 battery also tethered to the floor to get maximum run times.  That will tell me exactly what it is.
2015-4-28
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yorlik
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Gerry1124 Posted at 2015-4-28 20:29
Do you know if the DJI APP will display anything above 5200 MAH?

both my dji 5200mah batts show over 5400 on FULL CAPACITY line, FWIW....

actual test sure sounds like easiest test, otherwise  a smart charger will fully charge then discharge and list the mah put in and taken out if you have one of them....  
2015-4-28
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Gerry1124
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yorlik Posted at 2015-4-29 08:47
both my dji 5200mah batts show over 5400 on FULL CAPACITY line, FWIW....

actual test sure sounds  ...

I have the battery charger that came with the Phantom 2 vision plus.  I fully charged the 6000 MaH battery.  All 4 lights fully on and when I connected it to the PT2 assistant, it said it was a 5200 MaH as in the pics.  I'm going to run the battery strapped down to the floor and compare to run time for a 5200 battery.
2015-4-28
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yorlik
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recall I did similar.... I did not know at the time that when I blew through all my new 9450 and am using the cheap 9443 models from ebay since....  so my 2# load would not lift..... bet it would with the higher thrust OEM ones, but, alas, they are too expensive for my taste so I now use the cheap lower thrust ones....  but I digress...

I would be concerned Gerry doing that since from my experiment,  it seems that you either get idle speed or max thrust full speed;  nothing in between when strapped down.  This means you pull 30 amps from battery instead of holding amps nominal of 16-17amps...  I would be worried about overheating motors, ESC, and battery since you will not be able to modulate current to something reasonable....

The battery, the ESC, and the motors are not rated for this 30 amp current for the 6 minutes they will run!  They will likely overheat and something fail.

Be careful or just turn and idle - that 12 amps w/o lifting will deplete the 5ah battery still in about 35 minutes and not hurt anything in the process.....
2015-4-29
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PanamonCreel
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Mexico
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simply discharge an OEM and the Aftermarket battery down to about the same voltage via normal flight then check the time it takes to charge both of them with the OEM charger, that should give you a good indication if the actual capacity is higher on the AM battery.
2015-4-29
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Yug
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PanamonCreel Posted at 2015-4-30 06:09
simply discharge an OEM and the Aftermarket battery down to about the same voltage via normal flight ...

That is the best tip here. I am kicking myself for not thinking of it myself. Been too long out of the game I suppose.

Yug
2015-4-29
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Raybro
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Gerry1124 Posted at 2015-4-29 08:54
I have the battery charger that came with the Phantom 2 vision plus.  I fully charged the 6000 MaH ...

Gerry,
We are all eagerly awaiting your results. Take your time ole buddy...........
2015-4-29
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Raybro
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Gerry1124 Posted at 2015-4-28 20:10
I think I'll tie it to the floor and run it in the house about 1 foot off the floor until the alar ...

Gerry, is the battery test complete? I'm looking at getting a couple of extra batteries and was looking at that one you have. Thanks,
Ray
2015-4-30
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gil
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I've seen some "Lipo Battery Smart Discharger" for the Phantom on eBay for about $20.  Looks like it uses a lightbulb or a fan as a load to discharge the battery.
(Includes the usual Chinese-Engrish instructions)
   Mode1: Auto discharge to 3.85V to long time storage
   Mode2: Auto discharge to 3.5V, deep discharge, DJI suggest 20 times rise-fall, do deep discharge.

Anybody tried one of them?

2015-5-4
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Raybro
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Gerry1124 Posted at 2015-4-29 08:54
I have the battery charger that came with the Phantom 2 vision plus.  I fully charged the 6000 MaH ...

Gerry, I just ran across this 6000mah battery on Amazon. They claim they got 34 minutes of flight time from it. I like the LCD display on the end of it. That's a nice feature. Cheaper than the stock battery too.
http://www.amazon.com/Ofeely-600 ... d=1432418779&sr=1-5


Ofeely Battery

Ofeely Battery
2015-5-23
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Michael Starley
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United States
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Rayrbro   Have you had the chance to use this battery,if so,would love to hear the results.Thanx A Million.
2015-5-25
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blasco403
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Canada
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Hello,

I use a regular lipo RC charger that has PB mode and will deliver 12V to the Phantom battery, during the charge cycle it displays how many Ma of charge it has supplied. I hacked an old PC power cord to remove the 2 flat prongs that are the exact fit into the connections on the battery, then use alligator clip leads from the RC charger. I have a 10 Amp charger as well, and the batteries are easily charged at 2C so they also charge much faster.

If you face the front of the battery (with the lights) to the left and have the connection side facing up, the negative connection will be the farthest away from you.

I do not have a 6000Ma battery but it also appears that the 5200Ma holds more the 5200 - mine appear to be around 5400Ma for the stock batteries.

Also,

I have one of the Lipo Battery Smart Dischargers referred to in post 30 and it works great. Takes battery down to approx 3.8 to 3.85 volts on setting one and 3.5 to 3.55 volts on setting 2. Be very careful as the light gets very very very hot.... I modified mine with a 3 light harness to discharge faster and reduce the heat that the single light produced.... One benefit is the little lady and I used it as a light to play cards by when camping since I had to discharge them anyway!!!

Good luck.

Ron
2015-5-25
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Raybro
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Michael Starley Posted at 2015-5-26 01:22
Rayrbro   Have you had the chance to use this battery,if so,would love to hear the results.Thanx A M ...

No, I just ran up on it on Amazon. Gerry states he has a 6000 mah battery but he has yet to post his findings on it. I don't think his has the lCD screen readout though.
2015-5-25
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Michael Starley
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Cool  Thanx
2015-5-25
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DJI-Dave
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johnwarr@live.c Posted at 2015-4-28 20:14
Well if you cant believe the advertising on a Chinese clone battery, who can you trust ?  lol
Person ...

I agree....
2015-8-19
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roy
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The battery being a 6200 exceeds the software range that was designed to run the 5200 battery. It's like a car speedometer says 120 but they can go faster it just won't register. The 6200 will give you a few more minutes flight time but doesn't register in the app. Best is to fly and time it.. With my calculations and strange math you should get about 7 minutes added flight time or close to that. Can't see it making it to 35 min flight time. I calculate around 27 minutes pushing it. Give it a try  Gerry and see what testing shows.
2015-8-20
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rodger
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I wouldn't use an oHm Meter. Unless you mean a volt Meter that has an oHm Meter function on it as most do.  In any event a Volt Meter will not give you the current capacity of a battery. It will give you the voltage and it will give you the amount of current that is being drawn. There is a meter that will tell you the capacity of the battery. I have one that I use for work but it is not in front of me right now and I can't think of the name. It comes from a European Manufacturer and it is a real asset. If you are interested I will grab the info for you.
2015-12-13
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