I still have a prehistoric notebook (sans battery, haha) that when put on battery power would hold up for a grand total of, well, 0 seconds before dropping dead. 6-pack (3S2P) of Panny-As (CGR18650A), 2 dead, 4 held their own. Charged up fine, held 4.whateverV for a few days, all work fine in my lights.
I swapped out all my 30Qs and Panny-Bs for these, and am “exercising” these to see how they hold up over time. Even lights like my F1 light up the room fine on turbo/flare just like my 30Qs.
So, I’ll put some mileage on these and keep my “good” cells in reserve.
My Sammy 22Fs rapidly sag on my triple s2+ and concept 1, hold turbo only for a few seconds before stepping down, and LG C2s not even that, low drain only and besides having the weird characteristic of a mAh rating measured at 4.3V.
While I’m glad I have them for eventual needs and testing, keeping all my flashlights live, etc, I’m also glad liitokala AliExpress shop delivers (with reliable tracking) to Brazil so I can eventually reduce the need for the older ondes