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Joined: Nov 2003
Posts: 18,321 Likes: 1
Campfire Ranger
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OP
Campfire Ranger
Joined: Nov 2003
Posts: 18,321 Likes: 1 |
Anyone have any suggestions? There are a dozen of them on Amazon from $100 plus to $17.00, I have a 12 volt deep cycle battery that I want to maintain, don't want to ruin it with a trickle charger and people tell me I want a smart charger? No idea what to spend on the thing.
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Joined: Sep 2014
Posts: 3,465
Campfire Tracker
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Campfire Tracker
Joined: Sep 2014
Posts: 3,465 |
A Shumacher trickle charger/maintainer won't ruin your battery. It will only charge if the battery needs charging. I've had 2 of them for years, I use them on my boat and my UTV. Never had a problem with overcharging a battery. I think my Schumachers were around $75 or so, if I remember right.
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Joined: May 2010
Posts: 14,958 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: May 2010
Posts: 14,958 Likes: 1 |
A mechanic buddy kept a battery on a tricle charger at his shop. He kept an old car radio
hooked up to it, turned on all the time. Trickle out..trickle in. Does that make sense? I never
tried it.
--- CAUGHT IN THE CROSSFIRE --- A Magic Time To Be An Illegal In America---
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Joined: Jan 2009
Posts: 2,923
Campfire Regular
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Campfire Regular
Joined: Jan 2009
Posts: 2,923 |
You see this brand in lots of newer bass boats for maintaining the battery. You can choose the voltage that best fits your needs. You may have to copy and paste into your search. https://www.amazon.com/NOCO-G7200-UltraSafe-Battery-Charger/dp/B004LWTHP2
Last edited by RNF; 11/21/18.
A gun in the hand is worth more than the entire police force on the phone.
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Joined: Jan 2001
Posts: 59,174 Likes: 3
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 59,174 Likes: 3 |
Anyone have any suggestions? There are a dozen of them on Amazon from $100 plus to $17.00, I have a 12 volt deep cycle battery that I want to maintain, don't want to ruin it with a trickle charger and people tell me I want a smart charger? No idea what to spend on the thing. Battery Tenders - I probably have at least 6-7.. They really do a great job of keeping batteries not only charged but they enhance the longevity by a good margin. I use the "Junior" models on both motorcycles.. Two standard units on the camper batteries, the dump trailer and two more for Adam's boat batteries.. These are very good deals when bought in packs of 2,3 or 4..: https://www.amazon.com/Deltran-021-...mp;sr=8-6&keywords=battery+tender+jr
Last edited by Redneck; 11/21/18.
Ex- USN (SS) '66-'69
Pro-Constitution.
LET'S GO BRANDON!!!
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Joined: Jul 2006
Posts: 4,842 Likes: 3
Campfire Tracker
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Campfire Tracker
Joined: Jul 2006
Posts: 4,842 Likes: 3 |
I kept a boat battery about 10 years with a Battery Tender Jr. They are great little gadgets.
"Men must be governed by God or they will be ruled by tyrants". --- William Penn
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Joined: Mar 2011
Posts: 8,250 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Mar 2011
Posts: 8,250 Likes: 3 |
Anyone have any suggestions? There are a dozen of them on Amazon from $100 plus to $17.00, I have a 12 volt deep cycle battery that I want to maintain, don't want to ruin it with a trickle charger and people tell me I want a smart charger? No idea what to spend on the thing. Battery Tenders - I probably have at least 6-7.. They really do a great job of keeping batteries not only charged but they enhance the longevity by a good margin. I use the "Junior" models on both motorcycles.. Two standard units on the camper batteries, the dump trailer and two more for Adam's boat batteries.. These are very good deals when bought in packs of 2,3 or 4..: https://www.amazon.com/Deltran-021-...mp;sr=8-6&keywords=battery+tender+jr^^^^ this
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Joined: Apr 2010
Posts: 20,683
Campfire Ranger
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Campfire Ranger
Joined: Apr 2010
Posts: 20,683 |
I'm pretty certain when we sing our anthem and mention the land of the free, the original intent didn't mean cell phones, food stamps and birth control.
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Joined: Feb 2006
Posts: 2,483
Campfire Regular
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Campfire Regular
Joined: Feb 2006
Posts: 2,483 |
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Joined: May 2005
Posts: 16,554
Campfire Ranger
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Campfire Ranger
Joined: May 2005
Posts: 16,554 |
Trickle charger, tender, maintainer - what's the difference? You charge a battery with a constant voltage and it will self-limit the current so water that disassociates has a chance to recombine so you don't lose water. The better ones compensate for ambient temperature I suppose. The magic voltage changes with battery age too but by the time it becomes significant your battery is pretty much worn out anyway. No magic involved execept in salesmanship.
Automatic chargers charge current limited until the battery is "full" (faster) and then switch to voltage limited at that magic float voltage.
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
Which explains a lot.
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Joined: Jul 2009
Posts: 5,183
Campfire Tracker
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Campfire Tracker
Joined: Jul 2009
Posts: 5,183 |
Northern Tool had their $49.99 battery maintainers (not chargers) for sale online a couple of weeks ago for $24.99. I told my SIL about it and he went to the local store to pick up a few. He called me and told me they on sale in the store for $18.99. I think today 11/21 is the last day of the local sale. Most people aren't aware that the Northern Tool stores are competing with the Northern Tool website to stay in business. Those Northern Tool ads you get in the mail with the 20% to 33% off coupons and the sales prices are not valid on the website. The coupon discounts can be used on the sale prices also.
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Joined: Dec 2003
Posts: 86,272 Likes: 26
Campfire Oracle
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Campfire Oracle
Joined: Dec 2003
Posts: 86,272 Likes: 26 |
I went to NAPA for the one on my tractor. It was about $15.
If you take the time it takes, it takes less time.
--Pat Parelli
American by birth; Alaskan by choice.
--ironbender
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Joined: Feb 2001
Posts: 4,043
Campfire Tracker
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Campfire Tracker
Joined: Feb 2001
Posts: 4,043 |
What Redneck said.
I have three of them and they work very well.
Bill
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Joined: Mar 2001
Posts: 1,796
Campfire Regular
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Campfire Regular
Joined: Mar 2001
Posts: 1,796 |
I had a minnkota 3 bank charger hooked up to my (3) Trojan SCS200’s in my boat. Typically I would plug it in for a day after a day of fishing. Worked perfectly for a couple years. One winter I pulled the batteries out and hooked the charger up in my garage and left it plugged in for a couple months as it’s supposed to be safe to maintain the batteries. Well it boiled most of the fluid out and ruined all of my high dollar batteries. My mode going forward is to plug it in once in a while to make sure they are full and then unplug. I don’t leave chargers hooked up to trickle anymore.
Sean
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Joined: Nov 2015
Posts: 19,217
Campfire Ranger
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Campfire Ranger
Joined: Nov 2015
Posts: 19,217 |
I have Shumacher and Battery Tender brands both, and they both do what they're supposed to do.
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Joined: Dec 2010
Posts: 14,408
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2010
Posts: 14,408 |
you guys leave the batteries hooked up to the vehicle electrical system while using those?
My diploma is a DD214
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Joined: Mar 2007
Posts: 24,390
Campfire Ranger
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Campfire Ranger
Joined: Mar 2007
Posts: 24,390 |
I have used ones from harbor freight for years. So far so good.
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Joined: Jan 2002
Posts: 2,248 Likes: 1
Campfire Regular
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Campfire Regular
Joined: Jan 2002
Posts: 2,248 Likes: 1 |
you guys leave the batteries hooked up to the vehicle electrical system while using those? I do. Wired onto the battery post with a quick disconnect.
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Joined: Feb 2001
Posts: 4,043
Campfire Tracker
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Campfire Tracker
Joined: Feb 2001
Posts: 4,043 |
you guys leave the batteries hooked up to the vehicle electrical system while using those? I do. Wired onto the battery post with a quick disconnect. I do also. Boat, motorcycle and sports car all have them wired with quick disconnect. Bill
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