If the tension spring on your charger hasn’t accidentally slung a cell across the room when taking the cell out of the charger then you’re not a flashaholic, lol.
hahahaha I actually had one jumping out of the charger the other day. but i aught it with y left hand while it already had passed me on the way down (neven know I could be this fast
Hmm, interesting to mark cell pairs with a wrapper, might just order a few of those, thanks for the link
Does having a 10180 stovepipe in my charger count? That’s happened a few times here Wee little beasties those are in a big charger bay.
I must sadly report the loss of another of my LiIon cells, a 14500 this time. It was in my SK68 clone and dim, when the light shut down I thought I’d clicked it off but apparently I hadn’t. Later in my VC2 it read “0” volts and my DMM showed 0.007V. Shame on me- and it was an Efest too :cry:
Oops… :person_facepalming:
Dropped a rather new Panasonic 3400mAh on the tile floor here today from about 3½ feet high…
Ugly dent in tail…
It’s doing the NOR test in my Liitokala charger as we speak.
Reading 2173 mAh at 3.52 Volts now, so it seems to be okay…
Drop Test
Test method: Each fully charged cell or battery is dropped three times from a height of 1.0 m onto a concrete floor. The cells or batteries are dropped so as to obtain impacts in random orientations. After the test, the sample shall be put on rest for a minimum of one hour and then a visual inspection shall be performed.
Criteria: No fire, no explosion (Test shall be performed with the following criteria IEC 62133)
Heating Test
Test method: To heat the standard charged cell at heating rate of 5°C per minute up to 130°C and keep the cell in oven for 10 minutes.
Criteria: No fire, and no explosion.
Overcharge Test
Test method: To charge the standard charged cell with 12V and 3C(10.2A) at 23°C for 7 hours.
Criteria: No fire, and no explosion. Overcharge test shall be performed with the UL1642 standard
Vibration Test
Test method: As to the UN transportation regulation(UN38.3), for each axis (X and Y axis with cylindrical cells) 7Hz→200Hz→7Hz for 15min, repetition 12 times totally 3hours, the acceleration 1g during 7 to 18Hz and 8g (amplitude 1.6mm) up to 200Hz.
Criteria: No leakage, with less than 10mV of OCV drop
External Short-circuit Test
Test method: To short-circuit the standard charged cell by connecting positive and negative terminal by less than 80 ± 20mΩ wire for 3 hours.
Criteria: No fire, and no explosion.