Here's a hypothetical.

[H4X0R46]

Here's a hypothetical question because I'm sleep deprived and need to get my ass to sleep haha So I was just thinking about how everyone says "married" sets of batteries are super important. What if, say your mod fails and you end up buying the same mod to replace the old one, can you still use the old cells in it and still be considered a "married" set? Or would it be safer getting new cells with the new mod? (exact same type)

 

[nightshard]

The batteries are married to each other, not to the mod.

 

[OBDave]

The batteries are married to each other, not to the mod.

This. I have a handful of married pairs of 18650s, and a handful of dual-18650 mods. I don't care which pair is going into my KBox 120, my Fuchai 213, or my Hohm Wrecker, just that the pair is matched up and goes through life under the same or similar (each side of the battery sled in most mods is usually a little different) set of wear conditions.

You don't run into problems, for example, with a pair of batteries that's each been discharged 50 times to about the same voltage as one another before hitting the charger. You might, however, if you take a battery that's been through 100 charge cycles and pair it with a brand-new cell that's going to hold a charge better, as your old cell will crap out sooner and your new cell will end up over-taxed trying to make up for its' partner's shortcomings.

 

[H4X0R46]

The batteries are married to each other, not to the mod.

Ah, that answers my hypothetical. I've heard people say that a married set should never be used in a different mod, that say, 18650s in an RX200 should only be used in that mod. is this entirely false? Knowledge is power after all!

 

[H4X0R46]

This. I have a handful of married pairs of 18650s, and a handful of dual-18650 mods. I don't care which pair is going into my KBox 120, my Fuchai 213, or my Hohm Wrecker, just that the pair is matched up and goes through life under the same or similar (each side of the battery sled in most mods is usually a little different) set of wear conditions.

You don't run into problems, for example, with a pair of batteries that's each been discharged 50 times to about the same voltage as one another before hitting the charger. You might, however, if you take a battery that's been through 100 charge cycles and pair it with a brand-new cell that's going to hold a charge better, as your old cell will crap out sooner and your new cell will end up over-taxed trying to make up for its' partner's shortcomings.

You've never ran into problems using them in different mods? A lot of people on the forum say that's a bad idea. But is it REALLY, that's the question here

 

[OBDave]

You've never ran into problems using them in different mods? A lot of people on the forum say that's a bad idea. But is it REALLY, that's the question here

I've had multiple dual-cell mods for about a year and a half, never any issue switching between them. But you bring up the RX200 - that's a triple-cell mod. I'd only interchange married sets of those batteries with other triple-cell mods (not sure if any actually exist, I haven't been active much on the forums lately). The problem switching married sets between dual and triple mods is that you've got some batteries getting more charge cycles through them, and operating under different conditions. But my mostly unqualified view is that there's no issue switching between mods with the same number of cells.

For the past several months, my KBox and Fuchai have been my go-to mods. I have 3 sets of batteries - some LG HE2s, some LG HE4s, and some LG HG2s. Two sets are in the mods, the third on the charger. Whenever I kill a set, I throw them on the charger and take whatever backup pair is available, not giving a hog's fart in Havana about which mod they were in previously. I haven't blown up yet.

 

[nightshard]

Ah, that answers my hypothetical. I've heard people say that a married set should never be used in a different mod, that say, 18650s in an RX200 should only be used in that mod. is this entirely false? Knowledge is power after all!

If you were to take the 3 batteries from the RX200 and then put one aside and use 2 of them in a 2 battery mod then the 3 will no longer be married, just the 2 used.
If you put the 3 in another 3 battery mod other then the RX they will remain married.

That's why for the RX2/3 you would need to have 2 batteries for the 2 battery config and different set of 3 batteries for the 3 battery config.

 

[Paratech]

I have a pair of RX200, 3 RX2/3s, a Koopor Primus, a Vapmos Spartans and a Eleaf Istick TC200, they are all triple 18650.
I have 10 married sets I keep just for these mods.
All my other mods are dual 18650.
I have over 50 sets or married pairs for those.
In the last few years I have never had any issue taking a married pair that was previously in one mod and using it a different mod after charging.
I can see this being an issue ONLY if you have a mod that doesn't burn the batteries evenly.

 

[H4X0R46]

If you were to take the 3 batteries from the RX200 and then put one aside and use 2 of them in a 2 battery mod then the 3 will no longer be married, just the 2 used.
If you put the 3 in another 3 battery mod other then the RX they will remain married.

That's why for the RX2/3 you would need to have 2 batteries for the 2 battery config and different set of 3 batteries for the 3 battery config.

Cool thanks guys! I could always count on this forum!

 

[nightshard]

BUT if you had 3 batteries and wanted to only use 2 and still maintain the marriage, you could do that by cycling between them.
Which means for each charge cycle put a different one asaide.

 

[Lotus Insane]

BUT if you had 3 batteries and wanted to only use 2 and still maintain the marriage, you could do that by cycling between them.
Which means for each charge cycle put a different one asaide.

That is a way around the two-three marriage issue, though you need to be sure you are keeping track of the rotation. I have wondered this, how are everyone else keeping track of the marriages? Using labels or something?

 

[lordmage]

some label 1A 2A and so on... others simply know based on simple one set in mod, one set in backup case one on charger.

 

[nightshard]

This method works but it's more trouble then it's worth.

I just keep a 3 set for my triade and cycle my 2 sets between my 2 battery mods.

The thing that does annoy me is that I can't charge a 3 set and a 2 set in my 4 bay charger at the same time

 

[Paratech]

I write on mine with a sharpie then cover with clear tape.
However in my case I have plenty of batteries so I never split a pair or triple.
Since I've always had more batteries than I actually needed, I still have some from 2011 that are good.
Each one has an inventory number, date, and pairing code so I know what it goes with.
I probably didn't need the inventory number but it didn't hurt anything to add it.
Next I'll start printing a piece of paper with the info on it then rewrapping then in clear so I can read all the info and not have to apply the tape.
But I'll probably wait until I have at least 8 - 10 sets that need rewrapped.

 

[Paratech]

This method works but it's more trouble then it's worth.

I just keep a 3 set for my triade and cycle my 2 sets between my 2 battery mods.

The thing that does annoy me is that I can't charge a 3 set and a 2 set in my 4 bay charger at the same time

That's exactly why I have 3 Efest LUC Blu6, 2 Nitecore D4, and 2 Xtar VC4 chargers.

 

[lordmage]

This method works but it's more trouble then it's worth.

I just keep a 3 set for my triade and cycle my 2 sets between my 2 battery mods.

The thing that does annoy me is that I can't charge a 3 set and a 2 set in my 4 bay charger at the same time

sounds like a reason to get a 6 bay to me

 

[Whiskey]

Moved to battery area