I’ve had good luck by fanning out 10/12 awg wire and filling with flux. Then just place on the solder that you want gone, and heat up with iron. Sucks up 98% of solder easy
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Hey guys.
I got a lot of 48 P42As
One is testing at 3.47 while the rest are at 3.54-3.56
I should just order a replacement right?
huh, why? Just charge it a bit up if you’re concerned about equalizing current.
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I am just not certain if that difference could be indication there could be something wrong with the cell.
Is that a possible concern?
A very low imo. You can just test it for capacity though, if you have a charger that can count mAh.
I would totally ditch it dude.
I have a small pile of p42a that i have ditched for the same reason.
Not worth putting it into a pack only to find out later that it’s a shit cell.
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There we go.
Just test it, ditching it without even checking seems wasteful…
If it ever gets too big, I’ll take them. 
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I use them in the vape or give them to friends who vape.
For the cost of a single cell, there’s no way I would jeopardise another 47.
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Off course you have the luxury to grab one from your stash… I gotta order one. And then ordering just one seems silly…
So then is what else should I build…
It’s pretty standard practice for me to always order a few more cells than I actually need.
Before the full send days when i was ordering cells on a ‘per pack’ basis, i would always order extras.
You never end up short and eventually you end up with enough cells to make a new pack!
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You are the Future Man after all!!!
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I always try to order an extra cell for every 50, minimum of 1 extra, never failed me
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Are they all from the same batch/date code? If not then the difference could just be additional time that the one cell had to slowly self-discharge.
You can charge (identically) that one cell along with a couple of the others, wait an hour, measure their voltages, and then put them aside for a week or longer to see if the one cell drops voltage faster. Being at 4.2V shows any differences in the self-discharging much better than when at lower voltages.
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Yes. This one matches the numbers on several other ones
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Uhh be sad I guess, order a couple extra or see if someone near you has a few to spare
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Yeppers.
I got a few extra coming.
On a good note shopping from 18650 store is very reasonable.
In the past when I have had similar experiences, the vendor was happy to replace the cells for free.
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contact whoever sold it to you. they’ll replace it (if its a reputable reseller)
there’s a reason that cell is low (typically bad self discharge)
edit: i see its 18650. they should replace it for you
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Is it difficult to assemble the plug by putting the balance wires into a bare plug or should I just splice the battery wires to the plug wires?