Samsung INR21700 48G 4,800 mAh Li-Ion Rechargeable Battery

Last crawled date: 1 year, 11 months ago

This is a model of the newer case size 21700 (21mm dia x 700mm long) Samsung rechargeable battery that is being used in large battery packs for electric cars and electric motorcycles.


**WARNING** : These batteries have NO OVERCURRENT PROTECTION and can discharge over 15 Amps of current causing excessive internal overheating and possibly igniting or exploding. Be sure to design in or use a circuit that limits the current (e.g. fuse or circuit breaker) FOR EACH BATTERY to prevent such an occurrence !!
https://www.greentechmedia.com/articles/read/lg-chem-battery-cell-mcmicken-arizona-fire

**WARNING** : Avoid Ultrafire, Ultralife, Surefire, Trustfire and other Chinese (country of origin) made 18650s as they are *notoriously* known as FAKE ratings and inconsistent capacities !! These are the ones that are typically sold on ebay, amazon, and allibaba. Buyer beware !!
https://www.youtube.com/watch?v=qMZuHMlRw_0

https://www.youtube.com/watch?t=65&v=eOshOXcSkDA

https://www.youtube.com/watch?v=j4RfYufeFhc