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Update: SOLD PENDING PICKUP. Hello Guys, I have a lot of 617 18650 cells that I pulled out of OEM laptop packs and tested. These cells are all 2000-3000 mAh as I have discarded anything below that. They have been cycled at least 2x each (with an Opus) to ensure the mAh # is realistic, rested...

All sold.

ALL SOLD

SOLD

Hey guys, I know some of us have homemade packs made from recycled 18650's that we have mounted in places where a fire would be devastating. Or maybe you need a fireproof box to throw a small pack or battery if you have a mishap in your "lab". Well I stumbled accross this video while searching...

So Ive tested probably 1000 18650 cells so far from laptop packs and noticed a disturbing trend in the green Sony cells. Most test pretty decently on the initial discharge cycle test (between 1900-2200) but on every single capacity test after that they steadily lose 100-200 mAh per test so I...

Hello Guys, I have a couple of Opus chargers, one of them was consistently reading higher voltages than the other. For example, my cell would read 4.19V on my Fluke multimeter and also on one of my Opus chargers. If I popped the cell in the other Opus it would read 4.24V which was not reality...

Hey Folks, I have 2 Opus 3100 v2.2 chargers. I have been marking cells as heaters when they start approaching 45C and if they cross 50c I pull them off the charger for evaluation sometime in the future (due to the fact that some cells only heat on the first initial charge after extended...

Hello guys, I noticed most of the manufacturing dates for the laptop cells I am recovering are 2009/2010/2011. I seem to be still having many cells above 2000mAh (2600mAh new spec). Whats the oldest cells you would consider using, or do you just go by the standard testing process and if it...