Hello, is it going to measure the battery capacity with a multimeter? How to do it? Does it go to check the diode with a multimeter?

I mean standard AA batteries or batteries from the phone.

Using mA, we expect the rest of Ochma's law.

Because I just turned on the mA mode and nothing shows.

Turn on a series with a resistor or a light bulb. And count to the final voltage. Of course, you will unload the battery.

You need a receiver with a known power consumption and you need to measure the time until the voltage on the battery drops to the voltage at which the batteries are considered discharged. Check the fuse in the meter.

OK I understand. I have one more question, whether to measure the battery charging current in the car with an automatic meter, simply connect the black lead to com red to vmA and set the range on the voltage constantly? Does the red wire need to be connected to the 10A socket?

Did you short the battery with the meter in the mA range? The fuse was dropped as it suggests rafbid or the meter because even a fully discharged battery will show 50-200mA. You can shorten the normal AA battery temporarily (1-2 seconds) with a meter set to the 10 (or 20) A range. If the short-circuit current is above 3A, the battery is in good condition. Do not test the battery from the phone because you will destroy it.

So you will measure the charging voltage.

Mandatory 10A otherwise recommend a fuse or meter You set the 10A DC current range and not the voltage range.

Using a Multimeter to Measure Battery Capacity and Check Diodes: A How-To Guide

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#1 16343329 13 Mar 2017 18:34

kieraso341 kieraso341

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Post #1
16343329 13 Mar 2017 18:34

Hello, is it going to measure the battery capacity with a multimeter? How to do it? Does it go to check the diode with a multimeter?
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#2 16343345 13 Mar 2017 18:46

rafbid rafbid

Level 33

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Post #2
16343345 13 Mar 2017 18:46

And what is the battery?
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#3 16343388 13 Mar 2017 19:02

kieraso341 kieraso341

Level 5

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Post #3
16343388 13 Mar 2017 19:02

I mean standard AA batteries or batteries from the phone.
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#4 16343399 13 Mar 2017 19:07

kkknc kkknc

Level 43

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Post #4
16343399 13 Mar 2017 19:07

Using mA, we expect the rest of Ochma's law.

Moderated By dondu:
Skipping the typo in which Ohm in the grave falls over, the friend wants to damage the multimeter asking or at least a fuse!

Warning for repentance, in particular advising in the beginners department.
#5 16343402 13 Mar 2017 19:09

kieraso341 kieraso341

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Post #5
16343402 13 Mar 2017 19:09

Because I just turned on the mA mode and nothing shows.
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#6 16343414 13 Mar 2017 19:12

kkknc kkknc

Level 43

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Post #6
16343414 13 Mar 2017 19:12

Turn on a series with a resistor or a light bulb. And count to the final voltage. Of course, you will unload the battery.
#7 16343417 13 Mar 2017 19:13

rafbid rafbid

Level 33

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Post #7
16343417 13 Mar 2017 19:13

You need a receiver with a known power consumption and you need to measure the time until the voltage on the battery drops to the voltage at which the batteries are considered discharged.

kieraso341 wrote:
Because I just turned on the mA mode and nothing shows.
Check the fuse in the meter.
#8 16343484 13 Mar 2017 19:38

kieraso341 kieraso341

Level 5

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Post #8
16343484 13 Mar 2017 19:38

OK I understand. I have one more question, whether to measure the battery charging current in the car with an automatic meter, simply connect the black lead to com red to vmA and set the range on the voltage constantly? Does the red wire need to be connected to the 10A socket?
#9 16343495 13 Mar 2017 19:42

vodiczka vodiczka

Level 43

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Post #9
16343495 13 Mar 2017 19:42

kieraso341 wrote:
Because I just turned on the mA mode and nothing shows.
Did you short the battery with the meter in the "mA" range? The fuse was dropped as it suggests rafbid or the meter because even a fully discharged battery will show 50-200mA.
You can shorten the normal AA battery temporarily (1-2 seconds) with a meter set to the 10 (or 20) A range.
If the short-circuit current is above 3A, the battery is in good condition.
Do not test the battery from the phone because you will destroy it.
#10 16343503 13 Mar 2017 19:44

rafbid rafbid

Level 33

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Post #10
16343503 13 Mar 2017 19:44

kieraso341 wrote:
whether to measure the charging current of the battery in the car with an automatic meter, simply connect the black lead to com red to vmA and set the range on the voltage constantly?
So you will measure the charging voltage.
#11 16343506 13 Mar 2017 19:45

vodiczka vodiczka

Level 43

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Post #11
16343506 13 Mar 2017 19:45

kieraso341 wrote:
Does the red wire need to be connected to the 10A socket?
Mandatory 10A otherwise recommend a fuse or meter
You set the 10A DC current range and not the voltage range.
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Topic summary

The discussion focuses on using a multimeter to measure battery capacity and check diodes. Users inquire about measuring standard AA batteries and phone batteries, with suggestions to use a resistor or light bulb in series to unload the battery for accurate voltage readings. It is emphasized that measuring the charging current in a car requires connecting the multimeter correctly, with the black lead to COM and the red lead to the mA or 10A socket, depending on the measurement type. Caution is advised against shorting phone batteries, as this can damage them. The importance of checking the meter's fuse is also highlighted.
Summary generated by the language model.