best battery charger /maintainer - Polaris ATV Forum
ATV General Discussion General Discussions about Polaris ATVs.

 4Likes
Reply
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Unread 04-04-2019, 06:59 AM Thread Starter
Junior Member
 
pokey's Avatar
 
Join Date: Jan 2019
Posts: 9
best battery charger /maintainer

What do you all consider to be the best battery chargers or maintainers for atvs. I had a Shumacher 10 amp that boiled an ag battery last winter it was an automatic type but was probably 25 yrs old so I keep an eye on when I have to use now. Also what size do you need for a atv.
pokey is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Unread 04-04-2019, 09:43 AM
Junior Member
 
KH42-X2's Avatar
 
Join Date: Apr 2019
Location: Midwest
Posts: 3
Garage
I use this one by Stanley, got it on sale for ~$15

https://www.amazon.com/STANLEY-BC8S-...r=8-7-fkmrnull
KH42-X2 is offline  
post #3 of 17 (permalink) Unread 04-04-2019, 10:46 AM
Polaris ATV Legend
 
latebird's Avatar
 
Join Date: May 2014
Location: Illinois
Posts: 3,053
I use Battery Tender brand - great warranty - have had two replaced in the last 5 years - I have 2 regular, two Jr., one 6 volt and one lithium - I use them on all my vehicles including my Dodge Dakota RT, Ford F-150 and Mercury Grand Marquis (the dodge has only had 10 miles put on it in the last year, my wife's Mercury only gets driven about 3 or 4 times a month and makes a couple trips to Wisconsin every year - we put 20,000 miles on it in 6 years - the F-150 has a faulty GEM and will turn on the cargo light randomly running the battery down) - I use them in my shop and on all my toys. I'm sure the Yuasa charger is just as good, but I can get Battery Tender's cheaper.

The one from Stanley is an 8/2 amp unit - the battery in an ATV usually calls for a charge rate of less than 2 amps - the Battery Tender charges at 1.25 amps for lead acid and the lithium charger charges at 750 milliamps. 2 amps can damage a small battery.

2006 Trailboss 330
2002 Sportsman 90
2005 TRX400EX (FOR SALE)
2003 LT-Z400 (needs engine work & is for sale)
2004 CRF250X
1971 Triumph 650 Bonneville (has 5 original miles)
1972 Triumph 650 Bonneville (undergoing restoration)
1979 Honda CBX (6 cylinder)
1970 Kawasaki G3SS 90cc Bushmaster
1976 Suzuki RE5 Rotary (not running & FOR SALE)
1981 Kawasaki KZ305-A
1981 Suzuki GS450T (undergoing repair & will be for sale when done)
1982 Kawasaki KZ750-H (FOR SALE)
1989 Honda VT1100C
2007 Vectrix VCTX Electric Scooter
1965 Montgomery Ward 3 1/2 HP Tecumseh Mini Bike
1970 Triumph T25 250cc Trailblazer
1968 Triumph 250cc Flat Tracker

Shop Owner and Mechanic with over 50 years experience

Last edited by latebird; 04-04-2019 at 10:55 AM.
latebird is offline  
Sponsored Links
Advertisement
 
post #4 of 17 (permalink) Unread 04-04-2019, 11:12 AM
ATV Enthusiast
 
PoPo3's Avatar
 
Join Date: Sep 2018
Posts: 67
Quote:
Originally Posted by pokey View Post
What do you all consider to be the best battery chargers or maintainers for atvs. I had a Shumacher 10 amp that boiled an ag battery last winter it was an automatic type but was probably 25 yrs old so I keep an eye on when I have to use now. Also what size do you need for a atv.
Your problem is using way to big of charger. Never go over 2 amp. I have been using the Harbor Freight unit for 20 years and they work good as others I have owned. And they only cost $9.99

https://www.harborfreight.com/automa...ger-42292.html
PoPo3 is offline  
post #5 of 17 (permalink) Unread 04-04-2019, 11:52 AM
Polaris ATV Legend
 
latebird's Avatar
 
Join Date: May 2014
Location: Illinois
Posts: 3,053
The Harbor Freight one is a 500 milliamp - should be safe for all lead acid batteries, but will take longer to charge fully - perfect for long term storage - I still recommend using an outlet timer to turn power off to the charger when the battery has been fully charged - turn it on for an hour or more daily to maintain the battery at a fully charged state.
FPD218 likes this.

2006 Trailboss 330
2002 Sportsman 90
2005 TRX400EX (FOR SALE)
2003 LT-Z400 (needs engine work & is for sale)
2004 CRF250X
1971 Triumph 650 Bonneville (has 5 original miles)
1972 Triumph 650 Bonneville (undergoing restoration)
1979 Honda CBX (6 cylinder)
1970 Kawasaki G3SS 90cc Bushmaster
1976 Suzuki RE5 Rotary (not running & FOR SALE)
1981 Kawasaki KZ305-A
1981 Suzuki GS450T (undergoing repair & will be for sale when done)
1982 Kawasaki KZ750-H (FOR SALE)
1989 Honda VT1100C
2007 Vectrix VCTX Electric Scooter
1965 Montgomery Ward 3 1/2 HP Tecumseh Mini Bike
1970 Triumph T25 250cc Trailblazer
1968 Triumph 250cc Flat Tracker

Shop Owner and Mechanic with over 50 years experience
latebird is offline  
post #6 of 17 (permalink) Unread 04-04-2019, 12:15 PM
ATV Enthusiast
 
SlowRoller's Avatar
 
Join Date: Feb 2019
Location: MA
Posts: 75
Garage
I like CTEK stuff. Use this, had it on my ranger for years went well. Works on the atv so far as well. It's $$ but you asked for best

https://www.amazon.com/CTEK-56-353-1.../dp/B000FRLO9Y

18' 850SP
SlowRoller is offline  
post #7 of 17 (permalink) Unread 04-04-2019, 12:31 PM
Polaris ATV Legend
 
latebird's Avatar
 
Join Date: May 2014
Location: Illinois
Posts: 3,053
Quote:
Originally Posted by SlowRoller View Post
I like CTEK stuff. Use this, had it on my ranger for years went well. Works on the atv so far as well. It's $$ but you asked for best

https://www.amazon.com/CTEK-56-353-1.../dp/B000FRLO9Y
The only thing wrong with the CTEK 7002 is it has an 8 amp output - it can damage an ATV battery

The CTEK 3300 @ 500 ma would be a better choice and cheaper too

https://www.amazon.com/dp/B000FQBWCY..._t1_B000FRLO9Y
SlowRoller likes this.

2006 Trailboss 330
2002 Sportsman 90
2005 TRX400EX (FOR SALE)
2003 LT-Z400 (needs engine work & is for sale)
2004 CRF250X
1971 Triumph 650 Bonneville (has 5 original miles)
1972 Triumph 650 Bonneville (undergoing restoration)
1979 Honda CBX (6 cylinder)
1970 Kawasaki G3SS 90cc Bushmaster
1976 Suzuki RE5 Rotary (not running & FOR SALE)
1981 Kawasaki KZ305-A
1981 Suzuki GS450T (undergoing repair & will be for sale when done)
1982 Kawasaki KZ750-H (FOR SALE)
1989 Honda VT1100C
2007 Vectrix VCTX Electric Scooter
1965 Montgomery Ward 3 1/2 HP Tecumseh Mini Bike
1970 Triumph T25 250cc Trailblazer
1968 Triumph 250cc Flat Tracker

Shop Owner and Mechanic with over 50 years experience
latebird is offline  
post #8 of 17 (permalink) Unread 04-04-2019, 12:41 PM
ATV Enthusiast
 
SlowRoller's Avatar
 
Join Date: Feb 2019
Location: MA
Posts: 75
Garage
Quote:
Originally Posted by latebird View Post
Quote:
Originally Posted by SlowRoller View Post
I like CTEK stuff. Use this, had it on my ranger for years went well. Works on the atv so far as well. It's $$ but you asked for best

https://www.amazon.com/CTEK-56-353-1.../dp/B000FRLO9Y
The only thing wrong with the CTEK 7002 is it has an 8 amp output - it can damage an ATV battery

The CTEK 3300 @ 500 ma would be a better choice and cheaper too

https://www.amazon.com/dp/B000FQBWCY..._t1_B000FRLO9Y
Thanks! I'll have to grab one and not use my 7002 on it! Does dropping the 1A make a big difference? Asking out of curiosity, I'm simple when it comes to electronics sometimes!

18' 850SP
SlowRoller is offline  
post #9 of 17 (permalink) Unread 04-04-2019, 01:40 PM
Polaris ATV Legend
 
latebird's Avatar
 
Join Date: May 2014
Location: Illinois
Posts: 3,053
Yes - one amp makes a difference

2 amps continuous on a car battery will burn it up over a long period of time (might take a month or more) - 1 amp continuous on an ATV battery will burn it up in about the same period of time it takes 2 amps to burn up a car battery. 1/2 amp continuous (24/7) on an ATV battery will burn it up within a year. Automatic ATV chargers start at 1.25 to 1.5 amps till the battery reaches 80% charge, then it drops off to about .25 amps till 90% charged, then drops to 100 ma continuous - even at 100 ma 24/7 the battery can be damaged - that's why I plug my chargers into outlet timers - turn the charger on for an hour or two each day - when the charger is off there is a back drain from the battery through the charger - this simulates battery usage - then turn the charger back on till it reaches a full charge and shut it off again - might take an hour or more, so you have to monitor it for awhile to see how long it takes for the charger to go into float mode - once the cycle has been determined, set the timer and forget it (not totally - need to check it occasionally to make sure it has not failed - that can ruin a battery also) - you can remove the battery, disconnect it or leave it installed - important thing to do is keep the battery in a cool place while in storage - a constant temperature is best - I like to keep my long term storage batteries in a refrigerator and then charge them every 30 days.
SlowRoller likes this.

2006 Trailboss 330
2002 Sportsman 90
2005 TRX400EX (FOR SALE)
2003 LT-Z400 (needs engine work & is for sale)
2004 CRF250X
1971 Triumph 650 Bonneville (has 5 original miles)
1972 Triumph 650 Bonneville (undergoing restoration)
1979 Honda CBX (6 cylinder)
1970 Kawasaki G3SS 90cc Bushmaster
1976 Suzuki RE5 Rotary (not running & FOR SALE)
1981 Kawasaki KZ305-A
1981 Suzuki GS450T (undergoing repair & will be for sale when done)
1982 Kawasaki KZ750-H (FOR SALE)
1989 Honda VT1100C
2007 Vectrix VCTX Electric Scooter
1965 Montgomery Ward 3 1/2 HP Tecumseh Mini Bike
1970 Triumph T25 250cc Trailblazer
1968 Triumph 250cc Flat Tracker

Shop Owner and Mechanic with over 50 years experience

Last edited by latebird; 04-04-2019 at 02:07 PM. Reason: Spelling
latebird is offline  
post #10 of 17 (permalink) Unread 04-04-2019, 01:52 PM
ATV Enthusiast
 
SlowRoller's Avatar
 
Join Date: Feb 2019
Location: MA
Posts: 75
Garage
Quote:
Originally Posted by latebird View Post
Yes - one amp makes a difference

2 maps continuous on a car battery will burn it up over a long period of time (might take a month or more) - 1 amp continuous on an ATV battery will burn it up in about the same period of time it takes 2 amps to burn up a car battery. 1/2 amp continuous (24/7) on an ATV battery will burn it up within a year. Automatic ATV chargers start at 1.25 to 1.5 amps till the battery reaches 80% charge, then it drops off to about .25 amps till 90% charged, then drops to 100 ma continuous - even at 100 ma 24/7 the battery can be damaged - that's why I plug my chargers into outlet timers - turn the charger on for an hour or two each day - when the charger is off there is a back drain from the battery through the charger - this simulates battery usage - then turn the charger back on till it reaches a full charge and shut it off again - might take an hour or more, so you have to monitor it for awhile to see how long it takes for the charger to go into float mode - once the cycle has been determined, set the timer and forget it (not totally - need to check it occasionally to make sure it has not failed - that can ruin a battery also) - you can remove the battery, disconnect it or leave it installed - important thing to do is keep the battery in a cool place while in storage - a constant temperature is best - I like to keep my long term storage batteries in a refrigerator and then charge them every 30 days.
Thanks for taking the time to explain that too me. Cleared a few things up and gives me a better idea of what's going on. Ordered the smaller CTEK.

18' 850SP
SlowRoller is offline  
Reply

  Lower Navigation
Go Back   Polaris ATV Forum > Polaris ATV Discussions > ATV General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Polaris ATV Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in













Similar Threads
Thread Thread Starter Forum Replies Last Post
NGK V Power or Iridium? RNL79 ATV Performance Modifications 10 02-14-2019 06:55 AM
Polaris Ground Cable Lenght Hondov65 ATV General Discussion 3 02-06-2019 08:46 AM
New to Forum. Needing help!!! PerkFarmPA ATV New Members 10 10-31-2017 05:23 PM
2012 550 X2 battery upgrade Stormrider1961 ATV Repair and Maintenance 1 01-16-2017 11:31 AM
battery charger connection fj5gtx Polaris Sportsman 570 8 12-27-2016 10:41 AM

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome