Dual 18650 box mod, after discharge then recharge, do you switch the positions of the batteries?

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LuNar

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May 10, 2014
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Hays KS
So I got my first dual 18650 box mod and 4 Samsung 25r's. I labled them ipv 1 and 2, and the others are 3 and 4. That way I know 1 and 2 belong together, as well as 3 and 4 always belong together.

Lets say I've used 1 and 2, put them in the charger, pop in 3 and 4. Days go by and 3 and 4 almost dead, When you put 1 and 2 back in... Do you swap their positions?

I put 1 in the left and 2 in the right. The next time around I use these batteries should I put 2 in the left tray and 1 in the right tray? I heard someone does that with their series boxes and I'm just wondering if that is something I should do. I know I had to marry a pair of batteries but I've heard nothing about changing their positions inside the battery tray the next time you use them.
 

Tmebs

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Sep 16, 2014
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BFE, Illinois
I've read that is how others do it. I've also read where people believe without really trying they will just ramdonly get put in opposite battery spots. Ya know the 50/50 chance thing. LOL
I was super .... when I got my Sig 100w and checked the batteries every time I took them out of the mod (at 50%) and every time I charged them with the digital meter.

They have been discharging at no more than .1 differently....so I check them about once a week now....these are new married 25r's.
Marked my 3 sets as 1a/1b, 2a/2b and 3a/3b with a small sticker and also dated them.
 

Tmebs

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Sep 16, 2014
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BFE, Illinois
I have never ran a battery lower than 3.6-3.5 on any device I have owned.
Thats just the way I do it.
My Sig100w registers 50% and my batteries are usally around 3.6
And my husband has a Tesla 120 and his battery icon blinks no bars/1 bar and his batteries are also around 3.6.

Just learned this by playing with the mods and checking them at different %'s and for his the bars(his came with no box/instructions).

Finally really getting some use out of the digital multi meter:)
:toast:
 
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