Battery safety

[ilporcupine]

The only difference in the writing on the battery is that instead of saying sdi it says sdiem, what does it means ?

The company is Samsung SDI, so?

 

[Frat]

It's a Samsung rewrap I think, but the fact that it isn't a SDI but a SDIEM makes me doubt.

 

[ScottP]

I wouldn't use them even if you can get the solder joint to come off cleanly. While it it possible they were modded by some third party and sold specifically as "tabbed" batteries, it is also possible they were harvested from a battery pack and could potentially be "used" cells.

 

[Beamslider]

The only difference in the writing on the battery is that instead of saying sdi it says sdiem, what does it means ?

I found this info on the web so may or may not be 100% accurate but sounds as if it is correct.


Samsung lithium batteries are divided into SDI ( are manufactured in Korea) and SDIEM ( are manufactured in Malaysia). And the date code rules of SDI and SDIEM are different.

On the third line of the PVC, there’ re 4 digits.

SDI BATTERY:
1. The first digit = Version
2. The second digit = Year ( A = 2010, B = 2011, C = 2012, D = 2013, E = 2014, F = 2015).
3. The third digit = Month (1, 2, 3…..9, A= 10, B = 11, C = 12).
4. The fourth digit may mean Day, not so sure. It seems that, 3 means the day of 03, 13, and 30 at the same time.

SDIEM BATTERY1. The first digit = Version
2. The second digit = Year ( A = 2010, B = 2011, C = 2012, D = 2013, E = 2014, F = 2015).
3. The third digit = Month ( O = 1, P = 2, Q = 3, R = 4, S = 5, T = 6, U = 7, V = 8, W = 9, X = 10, Y = 11, Z = 12).
4. The fourth digit may mean Day, not so sure. It seems that, 3 means the day of 03, 13, and 30 at the same time.