Notices
Marine Electronics Forum

Anyone using Batteryknobs?

Old 03-04-2011, 07:25 PM
  #1  
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Mar 2007
Location: Carrabelle, Fla
Posts: 1,673
Likes: 0
Received 22 Likes on 12 Posts
Default Anyone using Batteryknobs?

Looking for feedback?
Old 03-04-2011, 08:01 PM
  #2  
Senior Member
 
Join Date: May 2008
Posts: 1,223
Received 59 Likes on 40 Posts
Default

How often do you need to remove your batteries? Looks neat, but I can't see the functionality.

t2e
Old 03-07-2011, 10:35 AM
  #3  
Junior Member
 
Join Date: Jul 2010
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

This may not be a fair answer to your question. There are about 19 boats in western NY that I personally know of that have BatteryKnobs on their starting batteries. About 1,300 sets have been sold in the US. This is not a fair answer to your question because I am one of the developers of BatteryKnobs.

First off, there is 30 day guarantee. If you don't like them we will give you your money back!

Here is some interesting information.
The US torque spec for a 5/16 nut is between 7 - 18 ft-lbs. Batteryknobs hand tighten on average to 10-13 ft-lbs using one hand and 19 ft-lbs using two hands. You should not have to tighten your battery connections any tighter than that or there is the risk that you could damage the threaded stud. That's why we developed Batteryknobs to get rid of the need to use tools to connect power cables to marine and RV batteries. Tighten them down with one hand or both hands and that is all you need. Don't use pliers to tighten them. As an added feature a polymer material is injected above the insert to keeps things tight. They will not come loose due to vibration and the stainless steel insert will not rust.

Now as Tango2echo asked, "How often do you take your batteries out?". If your batteries stay in for a year or two, stainless steel nuts with lock washers will do you well but don't use wing nuts unless you tighten and check them often.

Thank you

Don

(www.batteryknobs.com),
Old 03-07-2011, 11:12 AM
  #4  
Admirals ClubCaptains Club Member Admiral's Club Member
THT sponsor
 
Join Date: May 2002
Location: Brookhaven, LI, NY
Posts: 15,757
Likes: 0
Received 25 Likes on 17 Posts
Default

Don,
Make one to fit the Cabela's AGM batteries and you might just be a millionaire!!

See this thread: http://www.thehulltruth.com/marine-e...agms-sale.html

OR, any of the other "Cabela's + AGM" threads found:
http://www.thehulltruth.com/search.php?searchid=3993138


.
Old 03-07-2011, 11:55 AM
  #5  
Senior MemberCaptains Club Member
 
Join Date: Feb 2002
Location: North Charleston, SC USA
Posts: 22,073
Likes: 0
Received 17 Likes on 17 Posts
Default

Well, I had never heard of them so I went to the website.



Those are certainly better than the wingnuts that I had to remove to replace my boat's four house batteries. I don't have a wrench for wingnuts and the PO had damaged the threads on the battery posts so I couldn't remove them with my fingers.

My original batteries had 5/16" threads. The replacements had 5/16" for negative and 3/8" for positive. I discarded the wingnuts and used SS hex nuts and lock washers on the new batteries.

The kobs would be fine for someone who removes batteries often. I don't. I'm not sure the knobs would allow me to install the covers on my battery boxes. Also, the website doesn't seem to provide the thread sizes for the knobs.
Old 03-07-2011, 01:55 PM
  #6  
Junior Member
 
Join Date: Jul 2010
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

birdman and rwidman,

We are looking into AGM batteries and their style of connection. It just takes research and some tooling. I don't know about making a lot of money. We make them here in the US so at this pricing its just a little pocket money.

They do fit under most battery boxes. The thread sizes are on the site I will make sure that the knob specs. are on the page.

Thanks again for the advice.
Don
Old 03-07-2011, 02:10 PM
  #7  
Admirals ClubCaptains Club Member Admiral's Club Member
THT sponsor
 
Join Date: May 2002
Location: Brookhaven, LI, NY
Posts: 15,757
Likes: 0
Received 25 Likes on 17 Posts
Default

Originally Posted by Just Add Water View Post
birdman and rwidman,

We are looking into AGM batteries and their style of connection.
You can't just look at "AGM batteries....". AGM's like regular wet batteries are ALL different. some use studs, some use the SAE auto stule, some metric, some SAE.... What you should look at closely is, the CABELA AGM's. I beleive their studd size is listed in that thread I linked above.

You will need to make/sell the STUDD and the KNOB for them. Good luck!
Old 03-08-2011, 05:05 AM
  #8  
Senior Member
 
Join Date: Aug 2006
Location: Baltimore, MD
Posts: 1,799
Received 57 Likes on 44 Posts
Default

Do you know if they have the correct size for the Optima Blue Tops? Not sure of stud size, but I know both pos and neg are the same. I see some value in them for my application.
Old 03-08-2011, 02:50 PM
  #9  
Edd
Admirals Club Admiral's Club Member
 
Join Date: Aug 2008
Location: Inland Waters of California
Posts: 1,927
Received 9 Likes on 7 Posts
Default

Don,
Do you offer the same product in stud form?

Edd
Old 03-08-2011, 03:26 PM
  #10  
Junior Member
 
Join Date: Jul 2010
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

Pursuit2470, and Edd,
Subject:Optima Blue Tops and BatteryKnobs with studs
I am currently down in Florida hiding from the Ice and Snow of Fairport NY. We got an Inquiry about Optimas on our web site. I don't know if you are the same person. My business partner will answer the website inquiry. We will need to check on the clearance between the knob handles and the automotive type terminal. There may be an issue with that on Optima batteries. As soon as we know the answer I will let you and the rest of the world know.

Sorry I can't give you a direct answer now. I am thinking I have several sets of BatteryKnobs with me I will go to an Optmia dealer and test the application.

Edd, We are looking into a design where the knob is supplied with a several studs that can be use with our present product. But we have to test that to make sure that the knob and stud stay tight.

Thanks again
Old 03-10-2011, 09:12 AM
  #11  
Junior Member
 
Join Date: Jul 2010
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

I just checked the compatibility of BatteryKnobs with an Optima Blue top battery. You can use a set 5/16 BatteryKnobs with your Blue top Optima battery.

The Optima battery studs are 5/16 on both + and - terminals. The batteryknobs engaged the stud and screwed down until contacting the surface of the battery terminal. There was no interference between bottom of handles or flutes and the top of automotive type post.

As always if you buy a set of BatteryKnobs and have a problem, we will either replace them or refund your money! The guarantee is for 30 days but If you can't get to your boat because of vacation or winter storage we will cover your purchase for a longer period.



Thanks

Don
Old 03-10-2011, 12:38 PM
  #12  
Senior Member
 
Join Date: Aug 2006
Location: Baltimore, MD
Posts: 1,799
Received 57 Likes on 44 Posts
Default

Thanks.....5/16's is the standard thread?
Old 03-10-2011, 02:51 PM
  #13  
Senior MemberCaptains Club Member
 
Join Date: Feb 2002
Location: North Charleston, SC USA
Posts: 22,073
Likes: 0
Received 17 Likes on 17 Posts
Default

Originally Posted by Pursuit2470 View Post
Thanks.....5/16's is the standard thread?
No. On some batteries the positive post is 3/8". There is no standard.
Old 03-10-2011, 07:26 PM
  #14  
Junior Member
 
Join Date: Jul 2010
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

Yes, marine batteries do come in 5/16" and 3/8" positive terminals.
On the Batteryknob site 5/16 is referred to as the "Standard Thread". That is because when we started our design process "Interstate Battery" used only 5/16" terminals. The Optima blue top battery also has 5/16'on both terminals, at least for now.

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
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.