Broke down some laptop batteries, but what are these?

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n10sivern
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Broke down some laptop batteries, but what are these?

I’ve have several laptop batteries I finally broke down for the 18650’s. Got some decent batteries, but I don’t know what the ones in the last picture are. TD18650 2000mAh EI12 EJ09. Just crap batteries?



Three tomatoes are walking down the street- a poppa tomato, a momma tomato, and a little baby tomato. Baby tomato starts lagging behind. Poppa tomato gets angry, goes over to the baby tomato, and smooches him… and says, Catch up.

Edited by: n10sivern on 12/07/2018 - 10:02
wstrachan
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The green ones are Sony VTC5 or VTC6, the lavender ones are Samsung ICR18650-28A.
Can’t tell you what the red ones are with no codes or markings. Anyone?

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n10sivern
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The red are sanyos. It’s the purple ones in the last picture that I don’t know. I know the others.

Three tomatoes are walking down the street- a poppa tomato, a momma tomato, and a little baby tomato. Baby tomato starts lagging behind. Poppa tomato gets angry, goes over to the baby tomato, and smooches him… and says, Catch up.

DavidEF
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An internet search for “TD18650” li-ion brings up a brand called GP Batteries, which I’ve never heard of before, that has/had a TD18650 cell. So it very well may be a cheap cell. Did it come from an OEM pack or from a third party replacement pack? Do you have a way to test it?

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n10sivern
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I’m gonna test them. They are only 2000mAh so if I toss them no biggie. I could use them for cheap lights around the house. I think they came from a no name laptop battery

Three tomatoes are walking down the street- a poppa tomato, a momma tomato, and a little baby tomato. Baby tomato starts lagging behind. Poppa tomato gets angry, goes over to the baby tomato, and smooches him… and says, Catch up.

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wstrachan wrote:
The green ones are Sony VTC5 or VTC6, the lavender ones are Samsung ICR18650-28A. Can’t tell you what the red ones are with no codes or markings. Anyone?

No, they’re not.

I’ve got 16 Sonys here that are date coded 2002, from Sony VAIO packs my brother gave me.

They’re Sony’s 2000-2200mAh li-co jobbies, most probably.

Date code suggests Saturday November 14th 2009.

No reason to use a ~30A cell in a laptop, lol.

The Samsung code suggests Friday December 3rd 2010, so just over 8 years old.

Don’t bang on them hard, either in charging, or discharging. I keep my LT pulls at 1.5A, or below.

As for the GP pink ones, GP is a big battery company noted for good NiMH batteries, like the GP ReCyKos and lauded in the RC hobby arena.

Chris

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to me they look like Panasonic 2450mah @4.5ah max discharge if the ring is white if translucent it is a re-wrap of the same Panasonic 2450mah

Perhaps this will help you to id the batteries: https://drive.google.com/file/d/0B9KXttJ6nbz6VWUtcUtvZEY3dWc/view
Credit for the link goes to paxtana @ ElectricBikeForum.

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I had not seen that page before… awesome resource!

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if they are gp then probably decent.
even generics from cheap packs aint too bad nowadays.
test em.

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the green are sony but not high drain/vtc.
they are common lico.

wstrachan wrote:
The green ones are Sony VTC5 or VTC6, the lavender ones are Samsung ICR18650-28A.
Can’t tell you what the red ones are with no codes or markings. Anyone?
n10sivern
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Well, had to toss the Sanyo batteries. They did the usual and got really hot when charging. The rest have all taken a charge. I’m gonna wait a couple weeks and throw away the ones with significant self-discharge, then I’ll do a capacity test and throw away the ones that are sub-optimum.

Three tomatoes are walking down the street- a poppa tomato, a momma tomato, and a little baby tomato. Baby tomato starts lagging behind. Poppa tomato gets angry, goes over to the baby tomato, and smooches him… and says, Catch up.

Jerommel
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I have a bunch of pulls too.
Old and weak…
Not suitable for more than 1 Ampere current.
But i made a block of 9 pieces (paper wrapped 18650s brand or type unknown) in parallel and i can amplify music with a tiny 2 × 2 Watt class D amplifier board for a few weeks (not continuously though).
Got some small Magnat bookshelf speakers on it and it’s definitely loud enough.

Planning to do the same with the rest of the pulls and make a lantern.
I think i still have 9 pulls that’ll work well enough.
It makes for a solid base that’ll be hard to knock over.

Q