Marry Batteries? Why?

[ShowerHead]

I read the 'marry your batteries to your device' idea quite often.
Seeing as how I have one multiple battery device and several single battery devices, I have to ask why?
If my device doesn't care about 'knowing' batteries when it's new and the batteries are 'strangers', why would it matter if I didn't have 'married' sets?
I keep track of my batteries, rotate them through devices in sequence, fully charge them on a D4 after each use.
Maybe it's just the 3 battery device that made me question the need of matching batteries to devices. I hate odd batteries in their cases.

 

[Spirometry]

You don't marry your batteries to your device, you marry the cells to each other.

The practice of marrying batteries is for your multi cell devices. By keeping the cells always paired together, you are keeping the age and cycles the same between the two. Therefore doing the best you can do in keeping the internal resistance the same.

If the internal resistance of the cells are different, it is possible to draw a lot more amps from one cell than the other. If you were to draw 25a from one cell and 15a from the other, then you would have gone over the CDR of most 20a cells.

 

[Jim_ MDP]

And the last element is having the voltages closely matched to even out the mod's draw on them.

Charge them to the same level, and discharge them together, in any mod. That's it.

 

[Jdurand]

I find doing this kind of a pain to do as well, but for safety sake, it's worth doing.

 

[Jim_ MDP]

A pain, really?

Maybe I just fell into a pattern at the start.
New cells get the Sharpie... date and a number.
Pairs get an additional "A" and "B"... and "C" for the RX's triples.
They get used and recharged in rotation, pretty straight forward.

Maybe if I had more than a couple dozen, or a bunch that were aging and dodgy.
I guess I'll see somewhere down the road.

 

[Jdurand]

Only a pain in making sure to stay organized. I mainly use single cell mods any more, so no not a big deal. Just something else to think about.

 

[Jim_ MDP]

Fair enough.

You know that feeling when you've had some spare time... and suddenly all the spares are charged ?

 

[ShowerHead]

Hmmmm, well then, for my usage, I am liberated from marriage!
Wait! The wife wouldn't like that. I'm liberated from pairing batteries.

I have a rotation for 14 batteries. They go into devices in sequence, stay until they are discharged, hit the D4, then go to the back of the queue. I don't ever use USB charging. I vape at the same Joules with the same tanks on any device I own.

 

[whodat2112]

Because you don't want your batteries "living in sin".

Just think about the "stares" that the unmarried batteries will get from those batteries that are married.

 

[ShowerHead]

Because you don't want your batteries "living in sin".

Just think about the "stares" that the unmarried batteries will get from those batteries that are married.

But, they'll be jealous of the single batteries lifestyle!

 

[Troll from behind]

Speaking of marrying your batteries when battery starts to go bad how do you know?
Does it still charge up to it's "full" voltage, like 4.21 volts?
Question raises from a debate I had in which I was told to check my batteries voltage after I had charged em.
I disagrees sayin it can look like full, but with old batteries the capacity drops faster making it dangerous to pair batteries based solely on the assumption "If they have same voltage when freshly charged their ok@.

 

[KenD]

Speaking of marrying your batteries when battery starts to go bad how do you know?
Does it still charge up to it's "full" voltage, like 4.21 volts?
Question raises from a debate I had in which I was told to check my batteries voltage after I had charged em.
I disagrees sayin it can look like full, but with old batteries the capacity drops faster making it dangerous to pair batteries based solely on the assumption "If they have same voltage when freshly charged their ok@.

In my experience (I'm certainly no expert), the capacity drops while the batteries still charge up to 4.2v. Internal resistance would be a better measure for comparing batteries, but that's difficult to check without expensive specialised equipment. Better to just marry new batteries, not ones that have been living a wild single life for a while

Sent from my M7_PLUS using Tapatalk

 

[OhTheAgony]

And people still wonder why I feel mods with build in bats are the way to go

 

[KenD]

And people still wonder why I feel mods with build in bats are the way to go

They're not for me. It's not difficult to buy new batteries to marry.

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[OhTheAgony]

They're not for me. It's not difficult to buy new batteries to marry.

Sent from my M7_PLUS using Tapatalk

I know, but it is another thing to keep track of & I have plenty of things to keep track of in my life already. I just find build in batteries easier to use myself, just plug it in if you need a charge just like we're already used to with our phones & whatnot.

Plus the 5000mAh capacity of my Evic VT is pretty hard to beat for endurance to boot.

& in the event the build in battery dies before the mod does it really isn't that hard to replace even a build in battery with just a little bit of knowledge.

Different strokes for different folks I guess, good thing we have options

 

[KenD]

I know, but it is another thing to keep track of & I have plenty of things to keep track of in my life already. I just find build in batteries easier to use myself, just plug it in if you need a charge just like we're already used to with our phones & whatnot.

Plus the 5000mAh capacity of my Evic VT is pretty hard to beat for endurance to boot.

& in the event the build in battery dies before the mod does it really isn't that hard to replace even a build in battery with just a little bit of knowledge.

Different strokes for different folks I guess, good thing we have options

Definitely good that we have options, and this is a great example of it. Personally I'd never feel safe (for battery runtime) with a built in battery so I prefer to carry spare batteries (probably enough to last me four days, but hey, better to be prepared, right? ).

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[MortisEx]

I havent done enough research into lipos yet but you are meant to rest batteries for a while after charging as most failure happens when used immediately off the charger. Thermal runaway is safest on IMR as far as I know. That said, while it has happened, mobile phones etc exploding is such a rare occurrence that it isnt really a big worry for me. If you build safe and dont over pulse your batts they are probably immensely safer than crossing the street statistically. I love being able to have a couple of pairs charged and ready as I dont think I would be happy to have a device out of action for the charge time even without rest time.
And as Jim_MDP said, a quick date and pairing sign is so simple and easy if you cant handle marrying batts then... well I should just leave it there before I sound nasty.