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Author Topic: Are all modern 18650 tabbed batteries sticky tabbed these days?  (Read 1419 times)
MR GUS
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« on: August 17, 2016, 06:06:43 PM »

Curious, having found my soldering iron (don't ask) I was just trying to d-tab the links on a 4x pack which appeared faulty from new.
However should I simply get a blade under them these days? ..I want to check the batteries on the xtar VC4 (solar powered via my recent 24w **allegedly** 1.99GBP bargain fold up set) & if its the initial packs circuitry that is iffy put the pack to use elsewhere & invest in a decent set of batts to see the difference.

Blade / de-solder? (no visible excess)
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Austroflamm stove & lot's of Lowe alpine fleeces, A "finger" of Solar Sad
Noli Timere Messorem
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MR GUS
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« Reply #1 on: August 17, 2016, 09:31:08 PM »

update, they are glued, I'm getting a whiff of solvent, pain in the ass to remove & clean off.

Now i'm confused, under what circumstances would a Li-ion 18650 battery appear on a charger as Ni-MH? of the two i've de-tabbed so far one is showing as that chemistry!?

help.
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Austroflamm stove & lot's of Lowe alpine fleeces, A "finger" of Solar Sad
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Sean
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« Reply #2 on: August 17, 2016, 10:14:39 PM »

under what circumstances would a Li-ion 18650 battery appear on a charger as Ni-MH? of the two i've de-tabbed so far one is showing as that chemistry!?

help.

Over discharge - 18650 nominally 3.7v

put a voltmeter across it, chances are it's around 1v - if it is, throw it in the bin
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bxman
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« Reply #3 on: August 17, 2016, 10:15:34 PM »

photo maybe
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MR GUS
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« Reply #4 on: August 17, 2016, 10:36:09 PM »

Cheers, will photo upload tomorrow.

It's a set that were for a bike light months back that wouldn't charge properly from New, with brats lasting 30 mins max, thought I'd strip them down & see what was salvageable, the ninth registering Bart took 13mAn & was stating full thereafter, low voltage initially then full speed ahead.

The Batt registering as li-ion ditto, thereafter not taking anything fyi.
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Austroflamm stove & lot's of Lowe alpine fleeces, A "finger" of Solar Sad
Noli Timere Messorem
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Scruff
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« Reply #5 on: August 18, 2016, 11:08:08 PM »

Most I come across are spot welded tabs. I prefer solder but you gotta be quick with a preheated iron and cool the cell soon as...oh wait! Ahem! you should never solder lithium ion sh*tfan...ahem  whistlie
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