Guests - If You want access to member only forums on HSO. You will gain access only when you Sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
rcguy

Portable 12 volt Deep Cycle Charger Question

7 posts in this topic

Hi all,

Looking for recommendations on a good 12 volt portable deep cycle charger.

I don't think my current Sears deep cycle charger is fully charging my new Walmart 125 amp hour deep cycle battery. After an overnight charge my voltmeter is reading only 12 volts. I understand it should be somewhere between 12.7 - 12.9 volts on a new battery.

What do you think? Could it be a faulty charger and not a faulty battery? I just purchased this new battery due to the old one not testing above 12 volts after a overnight charge and now I'm thinking I may have just bought a new battery when the old one wasn't bad.

Thanks for your input,

rcguy.

Share this post


Link to post
Share on other sites

Borrow a friends charger and see if it charges the

battery higher. Most everybody has one. I just bought

a new one for my boat as well....and it would not

charge above 12.7.....I almost took it back, until I

checked the batteries on both of my trucks, which were

at 12.6 & 12.7 each. I always thought 13.2V was the

ideal target - as my Vexilar battery charges to.

I dunno - maybe batteries have changed - but my meter hasn't.

In theory, each cell of a lead-acid battery should produce

2.2v, X6 = 13.2. I also checked my fish house battery last

year before I put the house on the ice - it said 13.1,

but it is constantly on a solar-charger to keep it at peak.

Again, try another charger.

Share this post


Link to post
Share on other sites

12.6v-12.8v is fully charged auto battery, and 13.1v-13.4v is fully charged for deep cycle. These are after the surface charge has been taken off.

Share this post


Link to post
Share on other sites

I'd do two things...

Check my multimeter on something else you're relatively sure has a good, fully charged battery and see if it gives a more correct reading.

Measure the output of the charger, if you can. Some automatic chargers may not have the charging voltage on the leads though if not sensing voltage of a battery.

Is the 12V with the charger connected to the battery and showing a charge rate?

What is the amp setting you're using on the charger? If it's something like a 2A rate, it can take a long time to fully charge a high capacity battery.

Share this post


Link to post
Share on other sites

Thanks for the responses all,

I found out it was my voltmeter of all things. The meter reads low. I tested my deep cycle battery on another voltmeter and it showed 12.9 volts after a full charge. My volt meter only shows 12.0 volts.

Guess it's time for a new voltmeter.

rcguy.

Share this post


Link to post
Share on other sites

Don't expect great things out of the everstart walmart brand batteries. I was lucky to get a summer out of them (If I used it once a week I was lucky). Keep your receipt because you'll be replacing it or buying a new one every year.

Share this post


Link to post
Share on other sites

I had the same problem with Walmart batteries... keep the receipt!!

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
Sign in to follow this  
Followers 0



  • Posts

    • Hey @rl_sd who had the meat on sale? Looks great btw
    • chicks maybe exploring what the beak is for
    •   You can also be a little creative with the leftover meat.  For example: The wife and I will whip up a spanish rice mixed in with the pork and make Enchiladas or heat the pork on the stove top, mix in some BBQ sauce and make quesadillas (the grandkids love them).   There's more to pulled pork than sandwiches.  
    • that is great!!!!   good for you guys!!!!
    • Your right rs_ld,  a full smoker is the way to go, leftovers can always be frozen and re heated..good eats.
    • 195 degrees on these butts. Like they say, if you are going to spend 9 hrs smoking 5# of meat, you just as well spend the same amount of time smoking 45#. The local grocery had these on sale so had a few friends take the offer to throw a roast on for them. Took two off early for slicing  Pulling the rest cost them each a beer though!
    • Very good stuff, kinda tasted like ribs with this recipe,  I'll keep at it til I find the right one!! Good luck moon lake!!
    • It will be interesting to see how the Warriors react in free agency.  Will they be able to keep the team together?  It seems like all these guys value winning above a paycheck so they might be willing to sign deals that will still allow the team flexibility to keep good role players around them.    
    • That's too bad.  The fish were ON FIRE up there.  I went out with my dad and uncle with our tiller walleye boat, and hardly a clue what we were doing, and we crushed them!  Ended up with 118 pounds of packaged salmon fillets.  I think I can honestly say it was the most fun fishing trip I've had in my life.  Here's my biggest of the trip, 25 pounds.    
    •   It's amazing to see a thoroughly talented team like Cleveland just get dissected like a back alley pick up team. I agree--GS will be THE team to beat for several more years if they keep their nucleus. I think we can make them sweat a little bit now, though, so that's pretty exciting for a change! 
  • Our Sponsors