So I had a two battery mod that failed out on me. When I bought batteries for that mod originally I used those batteries just for that mod even though I had a single battery mod. I also always charged them at the same time. Over the time that I have read so many posts on ECF, I came across a concept that if I do have a multiple battery mod my batteries have to be married. I don't believe I understand this concept well enough. When my two battery mod failed I did use those two batteries individually for my single battery mod. Does this mean that I need to buy two new batteries when I buy my next two battery mod? Please explain this to me because I don't understand the married batteries concept. Thank you for your time.
"Married Batteries"
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The marrying thing is pretty much what you described (ie: using those 2 in the same mod at all times)
Using those same 2 batteries at different occasion means that yes you'll have to get 2 more and marry them so they discharge and charge at the same rate again.
Using those same 2 batteries at different occasion means that yes you'll have to get 2 more and marry them so they discharge and charge at the same rate again.
Can I drain each battery down to a specific voltage so that are the same and then still be able to use them?
Can't say as i'm no "battery expert" though i suspect the answer is no as they will still not discharge at the same rate anymore.
Right or wrong - when I quit using Rx200 I was not benching 6 batteries. Married 2 sets for dual and use other as singles for 521 tab. Did bench a married 3pk in case I needed to use Rx again. So far when I put in charger they are at equal volts.
The purpose of marrying batteries is to ensure each pair (trio, quad, etc.) discharge (and age/degrade) at an equal rate. I'm not ultimately sure what can happen with a regulated device, and I'm sure there are varied ways a given chip handles the scenario, but with mechs, especially those in parallel, married batteries are critically important to ensure the load is evenly distributed otherwise one can very easily overstress their cell.
Any reg users want to chime in here?
Any reg users want to chime in here?
I performed marriage ceremonies for my batteries and stored them in labeled plastic battery boxes. I kind of thought that was going a bit far, but I guess it was actually smart. I also put the purchase date on the label for reference.
I started with a single battery mod that I bought 4 batteries for. When I got a dual battery mod I used the same 4 batteries for it. Since they were bought at the same time and were regularly rotated, they had about the same amount of charges and discharges so I wasn't really worried about it. The reason you marry them is so one of your batteries isn't 4 years old with 400 charges and discharges while the other is brand new. That could cause problems but in your case if your batteries were all used about the same amount of times you could get away with marrying them now. You want to avoid putting two batteries together that are in completely different stages of life. A lot of people will probably disagree with me because most people don't take any chances with their batteries. I say live a little, take a chance, unbuckle that seat belt and drive 90. You only live once so have some fun. Seriously though as long as the batteries are in similar stages of life the risks are minimal.
Exactly, my rx batteries were married and bought and used for the rx. Because 1 battery of 3 in rx is known to discharge at a different rate than others, when marrying for dual put 3 in charger and paired closest two, other for 521.
Note that batteries are married to each other, not to the mod. You can swap a pair from mod to mod just fine, as long as they stay paired with each other the entire time.
Thanks for that clarification. After reading this thread, I wondered if I was making a mistake in using a pair of married batteries in my Battlestar that I also use in my Steampunks. Whew!
Being an ordained Priest from the Church of the Later Day Dude I have married many batteries, in 2,3 and 4 holy matrimonial sets. They have for the most part have all stayed together. Once in a while some have strayed but only in unique situations.
Keep them together but if they happen to split off on rare occasions, it's perfectly fine for them to come back with no harm.
The Dude Abides!
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Keep them together but if they happen to split off on rare occasions, it's perfectly fine for them to come back with no harm.
The Dude Abides!
Sent from my HTC 10 using Tapatalk
I can't say there was anything holy about the marriage ceremonies I performed, but all couples remain together. There is that. LMAO
You do know polygamy is kinda illegal in a bunch of places, right?
Mooch is still in the middle of studying this very issue (I think, he said he was). Hopefully we'll know more when he finishes testing, but until then, it's easy enough for me to stick with married batteries.
If your batteries discharge and charge similarly, then they are matched. When you take them out of a mod and read the voltages to be the same (to the tenth of a volt), that's a good indication. If they are used together in a mod and charge side by side in the same charger and finish charging within a few minutes of each other, that's also a good indication that they are closely matched. If your charger shows actual voltage readings (instead of LEDs) during charge, you can monitor charging progress more closely to determine suitability.
The definition of matched pairs generally means that you buy new cells from the same reputable vendor at the same time and keep them together for life and use them together without ever separating them to use in other mods singly or in different pairing combinations.
Mooch has been investigating matched pairs, whether they can be split and re-paired. That will be an interesting report.
The definition of matched pairs generally means that you buy new cells from the same reputable vendor at the same time and keep them together for life and use them together without ever separating them to use in other mods singly or in different pairing combinations.
Mooch has been investigating matched pairs, whether they can be split and re-paired. That will be an interesting report.
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Bless @Mooch for his amazing scientific process. Bet he didn't know that he could be running afoul of polygamy laws.
My guess is that as long as the batteries are of the same spec, marriage only matters if they are grossly different in terms of use/abuse. For example if one 30Q was fresh and the other was two years old and had been heavily taxed, and then only if they are used in an unregulated series box.
But I could be wrong, that's why we need science and stuff.
But I could be wrong, that's why we need science and stuff.
Meh, I keep my batteries married, it's a fairly easy thing to do. With that said, I usually use two battery mods, and I have a two battery charger, so it's almost impossible to screw up. Unlike a real marriage, which has so many ways of screwing up, I don't even worry. Going on 13 years now with the same guy, batteries are *easy*. LOL.
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