Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old July 23rd 07, 10:44 PM posted to uk.radio.amateur,rec.radio.amateur.misc,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 19
Default How to make a 3 Dollar Battery Charger

Cheemag wrote:

On Sun, 22 Jul 2007 18:15:34 GMT, Al wrote:

In article ,
Mick wrote:

On Sun, 22 Jul 2007 10:33:37 +0000, Mike G4KFK wrote:

On Sat, 21 Jul 2007 00:12:59 +0000, RMS wrote:

"Dr.Ace" wrote in message
...
3 Dollar lead acid Battery Charger
http://www.alpharubicon.com/elect/3dollarbattggn.htm

Don't try this at homes with 240V AC, kiddies!


...even though it works if you pick a lower wattage bulb to keep the
charging current down. Not a good idea really. :-)

I've used series lamps a few times when testing "unknown" valve gear as
it helps keep the "holy smoke" inside the transformer box. Cheaper and
less noisy than fuses.


I use a variac and monitor the current as I turn it up.


All of this probably costs more than a cheap battery-charger
would !


Yes, they had some at Lidl a couple of months ago that were VERY cheap and
had regulated charging voltage, and looked like pretty good chargers.

Chris
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Car and Deep Cycle Battery FAQ Bill Darden CB 0 March 25th 06 07:59 PM


All times are GMT +1. The time now is 08:02 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017