×
Follow Us
Results 1 to 3 of 3

Sponsored by

Battery Discharge Test

    #1
  1. Join Date
    Jun 2018
    Posts
    23
    Reputation

    Battery Discharge Test

    Hi guys,
    I need your help about battery discharge tests. We completed the test but i have some question marks in my head. Batteries are for 30 min but test was completed at 55 minutes. When i calculate the capacity it is more than 100 percent. Do you think that is make sense?

  2. #2
  3. Join Date
    Nov 2021
    Posts
    8
    Reputation

    LA Battery?

    Quote Originally Posted by changeabilities View Post
    Hi guys,
    I need your help about battery discharge tests. We completed the test but i have some question marks in my head. Batteries are for 30 min but test was completed at 55 minutes. When i calculate the capacity it is more than 100 percent. Do you think that is make sense?
    The slower a battery is discharged the less losses. Look at the performance table in the sbs link below.

    https://www.sbsbattery.com/PDFs/Stat...CatalogWeb.pdf

    55 min is strange though. That would be fast. Typical is about 8 hrs dishcharge rate to hit the nominal A*hr.

    What kind of batteries?

  4. #3
  5. Join Date
    Jan 2015
    Posts
    26
    Reputation

    Battery Capacity Test

    Quote Originally Posted by changeabilities View Post
    Hi guys,
    I need your help about battery discharge tests. We completed the test but i have some question marks in my head. Batteries are for 30 min but test was completed at 55 minutes. When i calculate the capacity it is more than 100 percent. Do you think that is make sense?
    Hi there,
    If you follow all procedures for your discharge test, among them, pre-equalization, resting time after this equalization, constant current during all test, correction factor applied (if necessary) that is your result, and you have a battery with some extra capacity. In short, done correctly it make sense.

Subscribe

Login or register to leave a reply!


Share this thread

Related Topics

  1. I'm looking for the best partial discharge training.
    By rspowell613 in forum Electrical Testing Talk
    Replies: 3
    Last Post: November 28, 2021, 08:45 AM
  2. How often does partial discharge occur?
    By dharmikpandya0 in forum NETA Level 3 Exam
    Replies: 1
    Last Post: April 12, 2020, 12:03 PM
  3. Minimum discharge time at end of cable test
    By Cldpmu in forum NETA Level 2 Exam
    Replies: 3
    Last Post: December 21, 2018, 10:08 PM
  4. What gas would indicate partial discharge in oil?
    By tallyson71 in forum NETA Level 4 Exam
    Replies: 3
    Last Post: July 27, 2017, 10:10 AM
  5. AC millivolt test on battery banks
    By Machine Gun Kelly in forum Electrical Testing Talk
    Replies: 7
    Last Post: November 1, 2016, 10:10 PM

Tags for this Thread

Follow us


Explore TestGuy


NETA Certification Training


NICET Electrical Power Testing


Help and Support