18650's - LC and TR

[Lupercal]

First, forgive me if this question has been asked before: it has literally been many years since I posted here. And if anyone remembers me from 2006 or whenever - hi.

Over the last few years I've been frustrated by the slight differences in 18650 Li-Ion batteries. Some are a few mm longer than others, and have slightly different +/- ends. No biggy you would think, but I began to realise that some are branded LC 18650, and others TR 18650. It's only a rule of thumb, but generally my older flashlights tend to only work with LC's, and my more recent ones with TR's. 2x18650 flashlights I own work with 2xLC, or 1 of either, but not with 2xTR.

Sellers who I've asked about this never have a clue. I just bought a light from someone and it came with LC's, so I'm going to buy a bunch from them so I have some spares for my old flaslights (like my dear old incan 2x186540 'Scorpion' which is still a sentilemental fave, and which I have a bunch of spare bulbs and reflectors for)

I just want someone else to tell me they've noticed this and have had similar problems - and again, apologies if this is ancient knowledge: I have been so long out of the

Loop

Tasmania

 

[HKJ]

I do not believe that the TR and LC has anything to do with size, but there is size difference on the batteries and the positive end has different shapes (small button top, large button top and flat top).
In my reviews I do list both size and shape of top, together with some photos.

 

[jasonck08]

First, forgive me if this question has been asked before: it has literally been many years since I posted here. And if anyone remembers me from 2006 or whenever - hi.

Over the last few years I've been frustrated by the slight differences in 18650 Li-Ion batteries. Some are a few mm longer than others, and have slightly different +/- ends. No biggy you would think, but I began to realise that some are branded LC 18650, and others TR 18650. It's only a rule of thumb, but generally my older flashlights tend to only work with LC's, and my more recent ones with TR's. 2x18650 flashlights I own work with 2xLC, or 1 of either, but not with 2xTR.

Sellers who I've asked about this never have a clue. I just bought a light from someone and it came with LC's, so I'm going to buy a bunch from them so I have some spares for my old flaslights (like my dear old incan 2x186540 'Scorpion' which is still a sentilemental fave, and which I have a bunch of spare bulbs and reflectors for)

I just want someone else to tell me they've noticed this and have had similar problems - and again, apologies if this is ancient knowledge: I have been so long out of the

Loop

Tasmania

Not sure about the TR, but I've seen LC on some cells which I believe just stands for LiCo or Lithium Cobalt. I don't believe this is a brand name, and that instead they are just generic cells with chemistry markings on them.