Batteries & Chargers Nicads, Nickel Metal Hydride, Lithium, LiPoly, Chargers, Cyclers, etc...

12 volt battery charging...

Old 02-17-2006, 09:22 PM
Senior Member
Thread Starter
Join Date: Oct 2004
Location: Toledo, OH
Posts: 253
Likes: 0
Received 0 Likes on 0 Posts
Default 12 volt battery charging...

I have my first 12 volt 7Ah torqmaster battery for my electric starter.

How often must this battery be charged with my overnight charger?

please reply,

big dan
Old 02-17-2006, 09:31 PM
Join Date: Jul 2003
Location: d.f.s., FL
Posts: 899
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 12 volt battery charging...

when i first got mine i charged it for twelve hours, after that charge it for eight hours when it gets low.
Old 02-17-2006, 09:36 PM
Senior Member
My Feedback: (1)
Join Date: Aug 2004
Location: Springtown, TX
Posts: 2,424
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 12 volt battery charging...

I charge mine with a regular car battery charger. Works much faster, and a more thorough charge--since that little wal-ward barely puts out 12 V.
Old 02-17-2006, 11:02 PM
Ken Erickson
Ken Erickson's Avatar
Join Date: Dec 2005
Location: Columbus, IN
Posts: 703
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 12 volt battery charging...

I do mine with a 300 mA wall unit about every other month. As Instructor, I start a lot of student planes with it. A day or two with that little charger does the trick.

Ken, AMA 19352
Old 02-17-2006, 11:51 PM
Senior Member
My Feedback: (5)
rcfury's Avatar
Join Date: Oct 2003
Location: Manassas, VA
Posts: 968
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 12 volt battery charging...

ive destroyed a battery for leaving it on the wall wart and plus having one sit too long with very little charge. 2slow2matter has the right path. I use the Battery Tender JR, which you can get all the local car parts store. It contantly monitors the voltage in the battery and puts a charge to the battery to reach the optimum voltage. More like a fire and forget. Once i get back from the field i just hook it up and leave it alone. Im guarenteed to have a full battery when im ready to go out again. Very worth the 20+ dollars.

Old 02-18-2006, 01:02 AM
Senior Member
My Feedback: (16)
Join Date: Apr 2002
Location: Locust Grove, GA
Posts: 12,942
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 12 volt battery charging...

The more you keep it charged the longer it will last. So I would recommend that you keep it fully charged. I usually charge mine at 14.5 volts and when charged drop the voltage to 13 volts. I then leave it at this voltage indefinitely. The current is usually less than 50ma.
Old 02-18-2006, 07:43 AM
Senior Member
My Feedback: (1)
JimCasey's Avatar
Join Date: Mar 2002
Location: Lutz, FL
Posts: 1,957
Likes: 0
Received 1 Like on 1 Post
Default RE: 12 volt battery charging...

I made a cord to plug in to my cigarette lighter. This goes thru the cab of my pickup out to the flight box. I just plug in the battery to top it up on the way to the field. The auto charging system is regulated better than anything but a top of the line wall charger, and if anybody at the field has a flat battery I can just toss 'em the charger cable. There is a fuse in the lighter plug (and another on the lighter circuit), so there is little danger of damage to the auto wiring. My last gel cell lasted for 5 years.
Old 02-18-2006, 02:46 PM
Senior Member
Join Date: Dec 2001
Location: FL
Posts: 7,769
Likes: 0
Received 5 Likes on 5 Posts
Default RE: 12 volt battery charging...

It is very easy to ruin your gell cell, easiest way is to deep discharge it and the other is to overcharge it. Check out Red's for some good advice on how to charge and care for all types of batteries. The above suggestion to use a battery tender is very good and the safest way.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.