Test/review of Vapcell Internal Resistance Tester YR1030

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
9,715
Location
Copenhagen, Denmark
[size=+3]Vapcell Internal Resistance Tester YR1030[/size]

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This is a meter designed to measure internal resistance in batteries.



I got the meter in a cardboard box with specifications on the back.

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The box contained the meter, 4 terminal probes and a manual.

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The meter is in a standard box, i.e. not a box manufactured for the meter.

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There are two connectors, a micro usb for charging the internal battery and a usb for probe connections.
Generally I do not like using usb connectors anything but usb connections, but in this case I do like it, because it makes it very easy if I want to make my own probes. The labels above the usb connector is signal names for the connections.

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The probe looks home build, a usb connector with shrink wrap around.

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The other end is two pogo pins in aluminium tubes with shring wrap around.
This means I can easily make new probes if I damage the supplied ones.
The dual pogo pins means that it uses true 4 terminal measurement, there is no errors from contact or cable resistance.

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The display shows the battery status, resistance and voltage.
Both voltage and resistance can be in manual or auto range.

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There is a couple of buttons:
Power is used to turn on/off the device.
Hold/Zero is used to freeze the ohm reading or zero the ohm reading
Range R is used for manual range select on ohms (20m, 200m, 2, 20, 200, auto).
Range U is used for manual range select for volts (2V, 20V, 28V, Auto).

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In addition to this Power can be used to activate the menu system. Here Power is the enter key, Hold is the escape key and the two range buttons are up/down.
In these menus a grading system can be setup, this will make it easy to sort batteries according to voltage and internal resistance in 3 bins. It is also possible to calibrate the meter and set some preferences.



[size=+2]Measurements[/size]

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Due to the way the meter works it do not need a battery to measure resistance, but can be used as a general milliohm meter.
Here I am testing on some resistors and comparing to a very precise meter.
The precision is very good.

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The same with voltage, again the precision is very good.

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The meter is using a 1000Hz sinus for measuring the resistance

The meter uses 1uA when off and 60mA when on without background light.



[size=+2]Tear down[/size]

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I had to remove four screws to open it.

















[size=+2]Conclusion[/size]

I like this meter, it is very useful for a lot of stuff, not only batteries. It can measure the resistance in a switch, a tail spring, a atomizer and a lot of other stuff.
When used to measure resistance it will give same value as an ordinary DMM except for much better resolution at low values. On batteries the value cannot be compared to the values chargers measures, but usual the datasheet value is measured this way.



[size=+3]Notes[/size]

I got the meter from Vapcell.

As reference I used my Keithley DMM7510, it can do 4 terminal ohm measurement.

Internal impedance/resistance of batteries
 

sim_v

Newly Enlightened
Joined
May 17, 2013
Messages
20
Location
France
Hi,

I got one from aliexpress (without Vapcell logo) but setup menus are in chinese . . . Hopefully test screen is the same.
Are any way to turn them in english ? ? ?

-Simon-
 

sim_v

Newly Enlightened
Joined
May 17, 2013
Messages
20
Location
France
Seller says that their is a chinese and english are distinct firmwares . . .
 

mactavish

Newly Enlightened
Joined
Jun 23, 2013
Messages
126
[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold]Thanks for the review HKJ![/FONT][/FONT]
[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold]Just bought the meter, just wondering if there is a chart, or formula that would describe how to interpret the IR numbers?[/FONT][/FONT]
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[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold]For example, the Sony spec sheet for NEW a Sony VTC4, lists the IR= 12. Lets say 6 months or a year later, you get a reading of IR = 24. That would be double, but what does that really mean, at what point or IR resulting measurements, give you an indication that the battery should perhaps be retired?[/FONT][/FONT]
[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold][/FONT]
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[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold]Maybe that later IR reading would need to be 96, 8x higher then when the battery was new, to trigger replacement. [/FONT][/FONT]
[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold][/FONT]
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[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold]Just not sure how to interpret the scale of IR readings this meter will tell us over time, in terms of battery health. [/FONT][/FONT]
[FONT=.SF UI Display][FONT=.SFUIDisplay-Semibold]Thanks again. [/FONT][/FONT]
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