Quantcast
Jump to content

Travis

How to test 12 V battery.

Recommended Posts

There's several ways to test, and most only tell part of the story. I use a special eye dropper, that has tiny floating plastic balls. This thing is supposed to measure specific gravity, or something. What it does is tell you about the condition of the battery acid. The instructions are on the side, and it's very simple to read. It's exactly like the ones that measure anti freeze, by counting how many balls are floating. Don't know for sure, but I doubt if they're interchangeable. But they only cost about two bucks at walmart, so it doesn't really matter. 

  Also check voltage. AutoZone, and the like, will do this for free. But I use a cheap tester from harbor freight. It's one of those that use led lights, and costs about five bucks.

  Put a good charge on that battery, and test it. The easiest way is to turn on the lights for a minute or so, to break the surface charge, then test. Or just test it after it's set up a day, after charging.

  Buy a battery tender at walmart, then you'll have a battery maintenance charger. But it won't charge a very low battery. It's not really a charger, it's a maintainer.

  • Like 1

Share this post


Link to post
Share on other sites

A battery tender it the ticket with these Mules. I go several weeks at times without using mine and since I have started using a battery tender, my battery is usually ready to go. My Mule is a 2005 model and am on my third battery. Probably could be only two, but I did replace the original battery after I put my winch on, upgrading to a battery with more reserve amps and cranking amps. I felt the original battery didn't have the amperage to operate my 3500 lb. winch in a hard pull. I just bought a cheap 3/4 amp battery tender (not the name brand) at Tractor Supply on their reduced section. Actually bought every one they had once I saw that they did work. I have one on each of my riding mowers, my tractor, 4 wheeler and my Mule.  All work great, unfortunately I haven't seen them since at Tractor Supply.  These do not charge a dead battery, just keeps your battery topped off and ready to go. They do not harm the battery in over charging like a higher amperage charger left on does. 

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Forum Topics

    • Travis' Mule 550

      Before Crank un-installedPiston INSTALLED after honing.Crank installed after honing.   Last pic is honed. Kind of blurry, took it with one hand. It looks better in person. It may not be professional quality but im 99.99999999999999999% sure it will work. Did better than I thought i would.   So now, only ONE more obstacle. the crankshaft axial play adjustment BUT I need someones opinion ( i took the piston back out afterwards) not sure if you can see it, but in the picture with cylinder honed, it's almost right where the  glare from the light is, and on top of the cylinder directly across from the spot, it looks like the hone didn't get ruffed up.  any ideas? out of round cylinder, cylinder wore and needs bored??  

      By Travis, in Kawasaki UTV SxS Forum

      • 14 replies
      • 582 views
    • Can you get a good used side by side for $4,500

      My family moved from Illinois to Leadville Colorado about 3 months ago.  Leadville has a lot of trails to ride and some fun off road stuff  that i would love to start getting into with my boys. I currently have a 04 HD FXD Superglide that i might sell or trade for a UTV. My question is are there any UTV that are good solid used side by side that i could find for about $4500 or $5000? If not I will keep saving for something. If so what brand and year should i be looking for? Thank you for your help!!   Thank you Chris

      By Biggz, in UTV General Discussion

      • 0 replies
      • 8 views
    • Second Battery

      I am installing a second battery in my 07 Prowler. How do I wire it up so the stereo doesn't drain the main battery, but the second battery can still charge

      By Blaze379, in Arctic Cat UTV SxS Forum

      • 4 replies
      • 3,377 views
    • Pug battery post melted

      I noticed the battery post was melted when the pug wouldn't start... With the pug off, just placing the cable back onto the battery creates tremendous Heat with in 5 seconds or so... I had just taken off all the connections and clean them with a wire brush just a few months back...Including battery cables and wires for the starter solenoid.  Could this only be a short or bad connection or is there something else?..could the cells of the battery be doing this or maybe the rectifier/regulator? The rectifier from visual inspection doesn't seem to be melted or discolored!

      By Doc Holland, in UTV General Discussion

      • 0 replies
      • 46 views
    • Kawasaki mule submerged in water !!help.

      Any 1 with some good advice ,my Kawasaki 2017 mule side by side was submerged in water and now dead. What can i do ?  

      By Harry Thomas, in Kawasaki UTV SxS Forum

        
      • 9 replies
      • 884 views
×