Lithium IMR vs ICR vs IFR

[SissySpike]

Some cool battery info I ran across today.

First off, this will explain their names:

In the case of IxR, the first Letter "I" just means that the cell is a Li-ion rechargeable. Second letter refers to the cathode material. The last letter "R" just means the cell is round.

ICR = Li-ion Rechargeable, the "C" = Cobalt.

IFR = the "F" stands for the element "Fe" which is Iron

IMR = the "M" stands for Manganese, or "Mn".

Lithium-based Batteries Information This is link to everything you could want to know about Lithium batteries

 

[steved5600]

Thanks for the research. I've used that site before. Some good info. I believe they have testing info also on that site. Each battery has an Internal resistance new and that changes over time. For sealed PV's you can't test them but for tubes you can. Only exception would be the ones with protection added. I will have to see if I can add that to this thread if I can find it again. Again thanks for the foot work.

 

[yzer]

To that I will add that only protected ICR batteries should be used in a PV or APV. Protected ICR batteries have a PCB, protective circuity to help prevent dangerous outgassing in the event of battery failure.

IMR batteries are a safer choice than ICR. The IMR battery chemistry is inherently safer than ICR. IMR batteries need no protection circuity.

ICR batteries offer more capacity per size than IMR. IMR offers a higher discharge rate (C rating) than ICR.

 

[Symmetry]

That's very helpful info, thanks. I'll make sure to stick to IMR or ICR batteries, likely IMR.

 

[SissySpike]

I found this when doing some research to see if ICR and IMR batteries would be interchangeable. This was a couple different posts in a flashlight forum. I also had no Idea there are flashlight enthusiast but anyway they are pretty knowledgeable about batteries.

 

[yzer]

I found this when doing some research to see if ICR and IMR batteries would be interchangeable. This was a couple different posts in a flashlight forum. I also had no Idea there are flashlight enthusiast but anyway they are pretty knowledgeable about batteries.

You would be surprised. I built a 250 mW red laser into a Mini-Mag flashlight using two 14500 protected ICRs.