LocostUSA.com

Learning how to build Lotus Seven replicas...together!
It is currently October 22, 2018, 1:24 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: July 8, 2016, 5:55 pm 
Offline
User avatar

Joined: December 4, 2011, 6:19 pm
Posts: 708
I haven't been able to fly my plane in a number of months and the clock has run down the battery, a common Cessna problem. Can I charge a 24 volt battery by using two 12 volt battery chargers hooked up in series? Any chance of damaging the chargers or the battery doing that?

_________________
Bill H
Winnipeg, MB, Canada


Top
 Profile  
Reply with quote  
PostPosted: July 8, 2016, 6:23 pm 
Offline
User avatar

Joined: November 14, 2009, 1:32 am
Posts: 695
Location: Rosser manitoba canada
You pose an interesting idea. If you are in a pinch I have a GMC highway coach that has a 24 volt system that could charge your battery up.
Attachment:
8133928[1].jpg
8133928[1].jpg [ 488.05 KiB | Viewed 1098 times ]

OR they sell these at princess and you have been looking for a new charger anyways.

_________________
The biggest thing in motocross.


Top
 Profile  
Reply with quote  
PostPosted: July 8, 2016, 6:34 pm 
Offline
User avatar

Joined: August 27, 2005, 1:04 am
Posts: 1337
Location: Kamloops, BC, Canada
Should not be an issue at all. I've boosted 24v equipment with 2 vehicles in series before, no issues.
Kristian

_________________
V6 in a book frame build. Now registered.
viewtopic.php?f=35&t=7587
viewtopic.php?f=33&t=18172


Top
 Profile  
Reply with quote  
PostPosted: July 9, 2016, 11:16 pm 
Offline
The voice of reason
User avatar

Joined: January 10, 2008, 4:47 pm
Posts: 7551
Location: Massachusetts
That should be fine, no problem. Always be careful, check the fluids first and don't charge fast after the first couple of hours. It's hard on the battery to run completely dead and be recharged again. You'll also have to check if it holds a charge. Eventually the bottoms of the battery case fills with crap and shorts the plates, then it's no good anymore.

_________________
Marcus Barrow - Car9 an open design community supported sports car for home builders!
SketchUp collection for LocostUSA: "Dream it, Build it, Drive it!"
Car9 Roadster information - models, drawings, resources etc.


Top
 Profile  
Reply with quote  
PostPosted: July 9, 2016, 11:53 pm 
Offline
User avatar

Joined: December 4, 2011, 6:19 pm
Posts: 708
Luckily my second battery charger was at the cottage and I didn't get out there this week-end to pick it up so I didn't try to charge the battery using the two chargers hooked up in series method. After doing some more research on this idea and reading this article http://www.avweb.com/news/savvyaviator/191348-1.html I decided that I wouldn't risk my $400+ Gill aviation battery to a questionable charging process.

After all, I was just being lazy and trying to avoid having to take the lower cowling off the plane so that I can get the battery out and take it to my AME to be charged correctly. Its not worth risking the battery for 20-25 minutes of work.

Bill

_________________
Bill H
Winnipeg, MB, Canada


Top
 Profile  
Reply with quote  
PostPosted: July 10, 2016, 3:05 pm 
Offline
User avatar

Joined: August 27, 2005, 1:04 am
Posts: 1337
Location: Kamloops, BC, Canada
I read the article you linked to, I didn't realize how fragile aviation batteries are. Probably a good call not to use just any automotive charger. I know the one I have that does 24vhas only one setting for it, and that's about 40A. What would work really well is a charger for RC use. Pretty much all the good ones can do lead acid batteries, and you can control the charge current very accurately, as well as the cut off voltage. Most will also charge a 24v battery when powered by a 12v source like a regular vehicle battery too. Here's a link to a Canadian mail order hobby place that I've dealt with quite a bit, they're pretty good. If you do buy one, check the specs to make sure it will do 24v lead acid first though, a lot of them won't do more than 20v.
http://www.greathobbies.com/search/resu ... srchcat=EB
Kristian

_________________
V6 in a book frame build. Now registered.
viewtopic.php?f=35&t=7587
viewtopic.php?f=33&t=18172


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
POWERED_BY