internal resistance for many type of batteries

[Ewald Andre]

The internal resistance of the battery is an important parameter to measure the discharge performance of the battery.

Generally speaking, the lower the internal resistance of the battery is, the higher the discharge current of the battery is.

The resistance of the battery need professional instrument test, and the multimeter can only directly test the resistance of the uncharged metal

Here are some of the internal resistance tests for high drian batteries
sanyo NCR20700A (8.96mΩ)

LG HG6 (9.26mΩ)

Sanyo NCR20700B (13.66mΩ)

Samsung 30T (6.77mΩ)

LG HG2 (13.89mΩ)

Samsung 25R (12.74mΩ)

Sony vtc5A (9.87mΩ)

Sony vtc5 (12.75mΩ)

Sony vtc4 (11.94mΩ)

Sony vtc6 (12.83mΩ)

Samsung 30Q (12.78mΩ)

LG HE4 (12.77mΩ)

LG HB6 (11.18mΩ)

LG HE2 (13.77mΩ)

LG HB4(10.97mΩ)

Samsung 48G (14.09mΩ)

Sanyo NCR20650A (9.58mΩ)

LG HD2C (11.95mΩ)

LG MJ1(30.4mΩ)

Sanyo 18650GA (24.5mΩ)

Sony 18650 VC7 (24.4mΩ)

Sony 18650 VTC4A (10.5mΩ)

And some rewarp brand batteries

Awt 18650 3000mah (12.88mΩ)

Ijoy 20700 new version (12.47mΩ)

Ijoy 26650 4200mah (10.35mΩ)

vapcell 18650 2000mah 38A(7.16mΩ)

BUSBARS 18650 1750mah (10.24mΩ)

 

[Cliffyboy1962]

Thank you for your post @Ewald Andre

So let me try and understand this then. Every battery has a small internal resistance. The internal resistance seems to be inversely proportional to the batteries stated max rated current output.

So are you saying that that these resistance values can, in some way help us know something about the capability of a particular battery?

I know that, knowing the internal resistance and voltage of a battery will allow you to calculate the current flow that would occur if you were to short it out. Ohms law.

Apart from that I don't know what these values can tell us.

 

[Ewald Andre]

Generally speaking, the lower the internal resistance of the battery is, the higher the discharge current of the battery is.
also can identify the battery it is original or fake via the internal resistance value.

 

[Ewald Andre]

Thank you for your post @Ewald Andre

So let me try and understand this then. Every battery has a small internal resistance. The internal resistance seems to be inversely proportional to the batteries stated max rated current output.

So are you saying that that these resistance values can, in some way help us know something about the capability of a particular battery?

I know that, knowing the internal resistance and voltage of a battery will allow you to calculate the current flow that would occur if you were to short it out. Ohms law.

Apart from that I don't know what these values can tell us.

Generally speaking, the lower the internal resistance of the battery is, the higher the discharge current of the battery is.
also can identify the battery it is original or fake via the internal resistance value.

 

[Cliffyboy1962]

Yes, I can see how that could be useful. So any internal resistance tester will do?

 

[Cliffyboy1962]

The vapcell you are using comes in at about $25 from Alibaba. Wonder if there is an alternative, at that price in the UK?

 

[Ewald Andre]

The vapcell you are using comes in at about $25 from Alibaba. Wonder if there is an alternative, at that price in the UK?

i bought it from alibaba vapcell .$27/pc .i am not sure the price is UK .