I am looking for a model I can use in LTspice for a a Lithium Ion battery. It is a pulsed load and I want to see things like heat losses and discharge time. Is there an existing model I can utilize for this, how can a li-ion battery be simulated in lt spice?

I am using a Saft 7s2p battery.

  • 2
    \$\begingroup\$ Try the LTspice group's Files area. If you search for Li-Ion you'll get some results. \$\endgroup\$ Nov 9, 2020 at 18:47
  • \$\begingroup\$ @aconcernedcitizen Thanks this was a nice resource I didn't know about. \$\endgroup\$
    – MaxwellEE
    Nov 9, 2020 at 19:20

1 Answer 1


You can use a scheme like this:

It uses a seperate circuit to simulate the battery. The problem will be deriving the values for the battery that you have, the values for the series resistance , and the RC values for the battery will need to be formulated by you. The way to go about doing this is described in this paper: An Accurate Electrical Battery Model Capable of Predicting Runtime and I–V Performance enter image description here.
Source: https://www.edaboard.com/showthread.php?214394-how-to-make-a-battery-model-of-NiMH-on-HSPICE

Note the dependent sources would be b-sources in LT-spice with nodes for the inputs.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.