Author Topic: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.  (Read 2355 times)

0 Members and 1 Guest are viewing this topic.

Offline Mosaic

  • Regular Contributor
  • *
  • Posts: 130
I'm open sourcing my desulfating, dedendriting, heavy duty pulse engine capable of recovering an automotive battery in a day or so!

Please credit me if you make any mods or spin off projects and republish.

I have the empirical data for the process and I have logged many (hundreds) of battery recoveries.
Tracer studies have been done on batteries placed back into vehicles and around 100 have been returned to service with no issues, about 1% returns.
The full bore system is going commercial but I am sharing the reliable pulse engine for those who'd like to DIY and 'roll your own' control/automation system.
It is effectively the pulse engine that I used to desulfate the batteries 'manually' as proof of concept before doing the extensive controls and failsafes with diagnostics to make a system that requires no thinking, just connect and forget, it does all the thinking (pass/fail/re-rating) and processing for you. With comms. via Iot across the internet it provides bidirectional data for remote control, archiving statistical yields and management reporting.

Here is the ongoing open sourcing of the pulse engine started this month.
https://hackaday.io/project/25741-desulfator-engine-for-climate-change-mitigation

Also my techniques for homebrew PCB manufacture:
https://hackaday.io/project/7938-pcb-smt-maker-lab-home

I'll support any questions or discussions here as well as on the project site.
The pics of the battery cell are before and after the process (1 day), no chemicals required. Note the white sulfate removal!

 
The following users thanked this post: BravoV, rsjsouza, hendorog, oldway, orolo

Offline Mechatrommer

  • Super Contributor
  • ***
  • Posts: 7546
  • Country: my
  • reassessing directives...
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #1 on: July 12, 2017, 03:44:16 PM »
how much price for the kit of complete components and pcb and necessary psu?
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline Mosaic

  • Regular Contributor
  • *
  • Posts: 130
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #2 on: July 12, 2017, 11:02:30 PM »
I really don't know. Haven't gotten around to making a kit so it's pure DIY right now.
 

Offline Mechatrommer

  • Super Contributor
  • ***
  • Posts: 7546
  • Country: my
  • reassessing directives...
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #3 on: July 13, 2017, 02:01:50 AM »
I really don't know. Haven't gotten around to making a kit so it's pure DIY right now.
i quick read the link you wrote could provide the kit if any interest... btw looking forward for your detailed documentation/schematics etc. i have more dead batteries here some are many (3-10) years back that i keep as paper weight and braces now. i have another two now recently deteriorate in functioning... thanks for sharing..
edit: sorry i maybe mistaken about your writing of providing the kit with some other people's project... no i was right...

https://hackaday.io/project/25741-desulfator-engine-for-climate-change-mitigation
Quote
I will look at offering the PCB or even a PCB and component kit for those who are interested in a simpler or quicker build with out the hassle of sourcing parts. This is probably more useful to those outside North America. However, part substitution is encouraged from a DIY perspective.
« Last Edit: July 13, 2017, 02:05:35 AM by Mechatrommer »
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline Mosaic

  • Regular Contributor
  • *
  • Posts: 130
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #4 on: July 13, 2017, 02:12:15 AM »
In terms of what you hope to do, if manual monitoring of battery voltage and temps are ok with you (say every 15 to 30 mins) then the already published schematic & layout will work for you once you can provide the PSU and a pulse signal. Suggested at 500Hz to 1500Hz.

A bit later on I'll try to fit a pulse gen in the free space on the PCB so to make it a more integrated solution which could be ready to accept DIY controls from a dedicated uC or Arduino board
 
The following users thanked this post: Mechatrommer

Online rsjsouza

  • Super Contributor
  • ***
  • Posts: 1694
  • Country: us
    • Vbe - vídeo blog eletrônico
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #5 on: July 13, 2017, 02:38:38 AM »
This is a truly great move on your part. Thank you for sharing this!
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline NiHaoMike

  • Super Contributor
  • ***
  • Posts: 3410
  • Country: us
  • "Don't turn it on - Take it apart!"
    • Facebook Page
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #6 on: July 16, 2017, 12:24:56 AM »
A friend of mine (who came up with the idea) and I have had great luck with a simple circuit consisting of a light dimmer set to about halfway, a 10uF or so motor run capacitor, and a bridge rectifier. Do realize that such a circuit connects the battery to one side of the mains.
Cryptocurrency has taught me to love math and at the same time be baffled by it.
 

Offline Mosaic

  • Regular Contributor
  • *
  • Posts: 130
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #7 on: July 16, 2017, 01:48:27 AM »
I've seen a few high voltage designs like that. But it is not necessary to risk your safety for the convenience of the 'mains' in this application. 36VDC is well within the human body skin model for voltage tolerance unless you lick the terminals.


 

Offline Cerebus

  • Super Contributor
  • ***
  • Posts: 1903
  • Country: gb
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #8 on: July 16, 2017, 02:12:32 AM »
I'll have to come back and take a proper look at this when I've got a few minutes more than I have just at the moment. I've got the (usual ?) stock of old knackered 12V lead acid batteries that just seem too useful to get rid of, but too knackered to really be any use, that I've been meaning to recondition (when I get a round tuit).
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline chickenHeadKnob

  • Frequent Contributor
  • **
  • Posts: 495
  • Country: ca
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #9 on: July 16, 2017, 12:56:05 PM »
Would this work on sealed gel cell - glass mat types or is a  large volume of hydrogen evolved ?
 

Offline Mosaic

  • Regular Contributor
  • *
  • Posts: 130
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #10 on: July 16, 2017, 02:23:40 PM »
Not an actual gel, but VRLA AGM or SLA types are fine.
You just throttle the voltage & temperature as appropriate for the type.
Temperature being more important. for sealed batts keep the temp no more than 45C

 

Offline oldway

  • Super Contributor
  • ***
  • Posts: 1816
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #11 on: July 27, 2017, 06:53:30 PM »
There are a lot of useless projects of desulfators on Internet, that's the first I see that works on the same principles of high energy pulses like industrial desulfators.....

This one works well for sure.....Congratulations .... :-+

Thanks for sharing.
 

Offline VK5RC

  • Supporter
  • ****
  • Posts: 1746
  • Country: au
Re: Desulfate & regenerate lead acid batts: a new DIY guide. Overnight.
« Reply #12 on: July 27, 2017, 09:02:43 PM »
I have one of these units - there used to be a kit - I can't find them easily now.   http://archive.siliconchip.com.au/cms/A_111476/article.html
Whoah! Watch where that landed we might need it later.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf