GDPR and DSGVO law

Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding.
Amazon Warehouse Deals ! Now even more Deep Discounts ! Check out these great prices on slightly used or just opened once only items.I always buy my gadgets via these great Warehouse deals ! Highly recommended ! Many thanks for supporting OverUnity.com this way.

User Menu

Powerbox

Smartbox

3D Solar

3D Solar Panels

DC2DC converter

Micro JouleThief

FireMatch

FireMatch

CCKnife

CCKnife

CCTool

CCTool

Magpi Magazine

Magpi Magazine Free Rasberry Pi Magazine

Battery Recondition

Battery Recondition

Arduino

Ultracaps

YT Subscribe

Gravity Machines

Tesla-Ebook

Magnet Secrets

Lindemann Video

Navigation

Products

Products

WaterMotor kit

Statistics

  • *Total Members: 82499
  • *Latest: henrypct

  • *Total Posts: 497553
  • *Total Topics: 14727
  • *Online Today: 44
  • *Most Online: 103
(December 19, 2006, 11:27:19 PM)
  • *Users: 4
  • *Guests: 22
  • *Total: 26

Author Topic: Measuring and Calculating Battery Capacity "Wasted" or Remaining  (Read 3506 times)

Offline TinselKoala

  • Hero Member
  • *****
  • Posts: 13695
This is important information for anyone experimenting with devices that use or charge batteries while running.

How much energy capacity in a battery? How can you tell how discharged a battery is, or to put it another way, how much useful energy is there remaining?

Dave at EEVBlog shows us how:

http://www.youtube.com/watch?v=1hs_9vx9APw

Free Energy | searching for free energy and discussing free energy


Offline Pirate88179

  • elite_member
  • Hero Member
  • ******
  • Posts: 8361
Re: Measuring and Calculating Battery Capacity "Wasted" or Remaining
« Reply #1 on: July 30, 2015, 04:10:01 AM »
This is important information for anyone experimenting with devices that use or charge batteries while running.

How much energy capacity in a battery? How can you tell how discharged a battery is, or to put it another way, how much useful energy is there remaining?

Dave at EEVBlog shows us how:

http://www.youtube.com/watch?v=1hs_9vx9APw

I really like Dave and have learned a lot from watching his videos.

Bill

Offline MarkE

  • Hero Member
  • *****
  • Posts: 6830
Re: Measuring and Calculating Battery Capacity "Wasted" or Remaining
« Reply #2 on: July 30, 2015, 05:39:08 AM »
This is important information for anyone experimenting with devices that use or charge batteries while running.

How much energy capacity in a battery? How can you tell how discharged a battery is, or to put it another way, how much useful energy is there remaining?

Dave at EEVBlog shows us how:

http://www.youtube.com/watch?v=1hs_9vx9APw
It is a well done video.  I have a couple of objections, but they are minor and he addressed one in his overlay comments.  People who experiment with batteries should pay attention to the need to actually test remaining capacity by discharging the battery into a load until it is effectively dead.

Free Energy | searching for free energy and discussing free energy

Re: Measuring and Calculating Battery Capacity "Wasted" or Remaining
« Reply #2 on: July 30, 2015, 05:39:08 AM »
Sponsored links:




Offline TinselKoala

  • Hero Member
  • *****
  • Posts: 13695
Re: Measuring and Calculating Battery Capacity "Wasted" or Remaining
« Reply #3 on: July 30, 2015, 06:10:31 AM »
I think that the video contains some information that may help recycling, charging pulse-motor builders understand how their run batteries can show little or no voltage drop on a multimeter while the motor runs for so long. The voltage when the pulse is _off_ is essentially the noload terminal voltage of the battery. But the voltage when the pulse is _on_ drops, and it drops more and more as the battery's capacity is used up. So while the no-load voltage curve is still relatively flat, the loaded voltage curve drops off more steeply.
The multimeter displays the average voltage fairly accurately even of a pulsed voltage. So with the very short _on_ duty cycles that these motors use, the average battery voltage shown on the DMM will be close to the no-load voltage and will remain fairly constant even as the loaded (pulse on) voltage drops off.

 

OneLink