BLF Community Battery Pulls Overview Thread (Laptop packs and Tool Packs)

I would send that back to xtar.

I have another Samsung pack in the mail so test each and every one through several cycles over time. No leaks, failures and maintains voltage. What I don’t have are any fresh new cells to test against but plan on investing in high current Sony cells down the road.

My very fist pack from last year: Pack 1, Sony 2150mAh, May 25, 2004 date code. Every cell holds 4.2- 4.1 after days rest and capacity fine through hobby charger. I won’t toss these!

Cheers

Edit:

Sony date codes from around the forum:

on Sony lithium ion cells look at the first two digits in the second row.
8A = 2600mAh
G7= 2400mAh
G6, 6A, 6B= 2200mAh
G5= 2150mAh
G4= 1950mAh
The last 5 digits of that row tell the manufacturing date.
digit 1: year. Q=2008, R=2009, S=2010 and so on
digit 2: month. A=Jan, B=Feb, …J= Oct
digit 3+4: day
digit 5: electrode history
so the cell on the photo was produced on Oct 29, 2008 (QJ29)

These are the first set of batteries I got from 18sixfifty…they work GREAT and every light I put them in run like a champ…of course I only run them in my “daily driver” lights at around 3~ max

Sure would extra mAh be nice…but if you can get em dirt cheap go for it!

The ones with the blue ring around the + connector are 2600mAh and work just as well :slight_smile:

Just an update, this is the result of the discharge..of the red Sanyo cells.

call those keepers, no?

Yes, I think they seem to be pretty good..like New. So I'll keep them.

those perked up really nice chibiM, you have yourself some keepers.

Thread updated with a new table that will be updated with new posts. Thanks chibiM for the idea.

Thanks Downlinx for doing that.

I know it can be time consuming once everyone is pouring down their data in this thread ;)

anyway, I ordered another pack (same as last time).

and today I bought a Dell pack (they said it was new, but voltage was very very very low) now charging

very very very low? My NOS Sony 2200 were at 2.xxxx volts but charge with capacity very near rating.

Yes, below 1v.

They quickly climbed and after some minutes they were above 3v

Almost finished charging.

Tomorrow I will do a discharge and check capacity, and keep an eye on them.

The price for these are good and they’re listed as genuine and new. Only thing that concerns me is they’re for a model which is very dated now. It’s for an Acer TravelMate 3200 which is from 2004. So these batteries are at beast from around 2005/6? That would make them pretty old. What do you guys think?

http://www.ebay.com.au/itm/201049142717?ssPageName=STRK:MEWAX:IT&\_trksid=p3984.m1438.l2649

9 Sanyo 2400mah? , I think the 8 Samsung 2800mahs are a better deal.

I’ve pulled out packs from laptops released in ’06 and they still show 90%, so I wouldn’t worry too much about age.

Yeh that’s probably the case. I was going to go pickup but realised Kingswood is about 8 days walk from my place.

Were the 2800’s local or internet buy?

Cheers

Australian seller unfortunately. I assure you the US has 100x better laptop deals. You’re not missing out.

I got another pack as my first one, and the same batteries were inside, about the same capacity as well.

The other pack, DELL had about 2000 in them. They were sanyo green tops, called ...xx18650x........I forgot the name.

From Dchomak’s post Here with his permission i posted in this thread and also updated the list.

Just pulled appart a Fujitsu Siemens pack BTP-C1K8 , 11.1v 4400 mAh
It came from a defect lapop, probably main board defect. (wouldn’t turn on)
it contains 6 cells, Sanyo UR18650FJ, they are 2200mAh
The sanyo labeling is very difficult to see at first, the clearly printed info on the cells lead to nothing
All 6 read 3.8v after separating.
Kept 4 out of 6, 2 of them were dented on the side and bottom.

Have them in the Nitcore charger now

This was a new, never been used pack that I was able to tear open with my bare hands. Either I’m turning into a monster or this was an exceptionally easy pack to open. :slight_smile:
All 6 Samsung 26D cells were sitting at 2.9V and are charging now. I have no reason to think that they won’t charge up to just slightly lower than their rated capacity of 2600 mAh.

I love the dell pc764 packs, almost always produce good 2600 or 2550 cells. I will get both of your pulls on the list. Thanks guys.