Homemade Capacitive Battery Charger


PLANS:
None. For all tools with plans, click here.
BUILDER:
KmanAuto on youtube.com
DESCRIPTION:
Homemade capacitive battery charger constructed from a timer, a bridge rectifier, an AC capacitor, a wooden enclosure, and a multimeter.
RATING:
(2)
Post a comment
Sep 17, 2015 11:18 PM
pbr333
This charger works great! and with desulfation benefits. But remember kids your plugged into the electrical outlet of your house and 110 has a nasty bite. Not nasty enough to make you let go of it, but you will curl up like a baby. So if your scared of the electrons then don't play with them! and get your wife to plug in anything electrical for you. Danger ! Danger is equal to working on older model TV.
Read all comments
Rate this build:
CATEGORIES:
LEVEL OF DETAIL (1-5):
4


Newest Forum Posts
  1. Stovetop tortilla press - GIF by ToolTalkBot on 2026-06-03 15:42:01
  2. Pill Box Filler by mklotz on 2026-06-03 15:27:56
  3. Cattle falls out of trailer - GIF by ToolTalkBot on 2026-06-03 12:56:01
  4. I Made a Camelback Straight Edge From Scrap Cast Iron by Great Ideas Catalogue on 2026-06-03 12:25:25
  5. Diy cheap Heat insulation(or thermal) paint yourself, in a garage or workshop! Subtit by Kovanca Polock on 2026-06-03 10:50:30
  6. Multipurpose sharpening tool - GIF by ToolTalkBot on 2026-06-03 10:27:01
  7. Slingshot carnival ride failure - GIF by Curbdiver on 2026-06-03 10:21:30
  8. Toyota folding electric bike - GIF by ToolTalkBot on 2026-06-03 08:14:01
  9. Hydraulic hay bale unroller - GIF by ToolTalkBot on 2026-06-03 06:07:01
  10. 45-degree brass infill plane - video by Jon on 2026-06-02 22:30:49
DIY Capacitive Battery Charger - comment on how to build a Capacitive Battery Charger - 5 comments
pbr333 says:
Sep 17, 2015 11:18 PM
This charger works great! and with desulfation benefits. But remember kids your plugged into the electrical outlet of your house and 110 has a nasty bite. Not nasty enough to make you let go of it, but you will curl up like a baby. So if your scared of the electrons then don't play with them! and get your wife to plug in anything electrical for you. Danger ! Danger is equal to working on older model TV.

DIYer says:
Aug 09, 2014 4:55 PM
Happened by this tool again, and thank angelfj and rgsparber for the warnings. Having worked with capacitors, I know the nasty shock they can produce. But fatal? I wouldn't risk that.

rgsparber says:
May 30, 2014 9:04 AM
I strongly disagree with the tone of "angelfj" posting. No need to run the author down. However, I strongly agree with "angelfj" technical comment. The project is extremely dangerous and should not be tried. Rick

angelfj says:
May 30, 2014 8:50 AM
To DIYer and anyone else who sees this project. PLEASE DO NOT ATTEMPT TO BUILD THIS.  THE LACK OF ISOLATION AND SHORT CIRCUIT PROTECTION COULD RESULT IN A FATAL SHOCK!!! Whoever reviews these projects needs to do a better job to assure that reasonable  measures have been taken to avoid injury/death.  This one is a real piece of crap and should never have been published!

DIYer says:
May 28, 2014 4:06 PM
I like the simple design on this thing.

Related Homemade Tools:


Get tool plans


Signup for our newsletter and get the 186 More Best Homemade Tools eBook free!