« previous next »
Pages: [1]   Go Down

Author Topic: Li-ion protection circuit  (Read 288 times)

0 Members and 1 Guest are viewing this topic.

Offline nonsubscriberTopic starter

  • Newbie
  • Posts: 6
  • Country: ca
Li-ion protection circuit
« on: May 04, 2023, 09:29:29 pm »
Hi folks. Thanks for any replies...

I believe the answer is "of course," but just checking. I should be able to use a protection circuit for 18650 batteries with 14500 batteries right? Guessing with voltage being the case ie. 3 cells = ~12V what is being safetied is the charging current right?
Logged
 

Offline thm_w

  • Super Contributor
  • ***
  • Posts: 6389
  • Country: ca
  • Non-expert
Re: Li-ion protection circuit
« Reply #1 on: May 04, 2023, 09:42:45 pm »
Its not really charging current that you are protecting against, its overcurrent when discharging or when the pack is shorted.
The overcurrent protection designed in for 18650's might be a bit high for 14500's.

But the main function is the under and over voltage protection, which would be the same.
Logged
Profile -> Modify profile -> Look and Layout ->  Don't show users' signatures
 

Offline amyk

  • Super Contributor
  • ***
  • Posts: 8276
Re: Li-ion protection circuit
« Reply #2 on: May 04, 2023, 10:20:25 pm »
The most common protection ICs e.g. DW01xx series use the resistance of the MOSFETs to set their current limits.
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee