The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Search

Notices

Random Quote: the floggings will continue until morale improves..
Reply
 
Thread Tools Search this Thread
Old 05-15-2012, 12:50 PM
  #1    
Senior Member
 
Join Date: Apr 2006
Location: Outside of Philly
Posts: 786
Default Best charger for AGM battery?

I searched around and couldn't find an answer to the above question. I am looking to install a charger for my 3 diehard AGM 31M batteries on my mako 250. The boat has shore power installed and we left a space for the charger. After some hard rains, I decided it would be best to have one. Let me know what brand and size you guys have. I am looking for a quality charger and a possible charger/inverter combo. Thanks
__________________
Steve
1971 Mako 17 with Merc 125 (Sold...missing her already)
1989 Mako 250 with twin HPDI 150s
Docked in Cape May, NJ

skmag357 is offline   Reply With Quote
Old 05-15-2012, 01:03 PM
  #2    
Member
 
Join Date: Nov 2004
Location: N California
Posts: 36
Default

And I'd like to piggyback on to this with an additional question.

I have a 30 amp Genius charger installed for my 3 flooded cell batteries. I have to replace the house battery and want to know if my 30 amp charger will be sufficient if I switch that one to an AGM battery. (The house battery is isolated so the mix of wet cell and agm should not be an issue.)

Apparently the recommended minimum is 40 amp chargers for agm's to help avoid sulfation.
JZumi is offline   Reply With Quote
 
Old 05-15-2012, 01:22 PM
  #3    
Admirals Club
 
Join Date: Jul 2004
Location: S Fla
Posts: 23,400
Default

I have used a promariner charger for 4 AGM's for 4 years with no problems.

Pro mariner quad 300 charger
__________________
Veradoclub/4S site here
The quality of answers you get goes up exponentially with pics...Learn how.


Glen E is offline   Reply With Quote
Old 05-15-2012, 03:59 PM
  #4    
Senior Member
 
Join Date: Jan 2009
Location: dix hills ny
Posts: 3,180
Default

You want the best????

http://www.progressivedyn.com/prod_d...rs_pd2100.html
__________________
www.blackfinforums.com

1989 38 Blackfin QSC 600hp soon
blackfinmike is offline   Reply With Quote
Old 05-15-2012, 04:07 PM
  #5    
Senior MemberCaptains Club Member
 
Join Date: Dec 2007
Location: Jupiter, FL
Posts: 7,131
Default

Xantrex 3 bank 40 amp
__________________
2004 32 Sea Vee Twin 250xs
2014 20 Albury Brothers 150 Merc 4 Stroke
bradv is offline   Reply With Quote
Old 05-15-2012, 04:14 PM
  #6    
Junior Member
 
Join Date: Aug 2010
Posts: 28
Default

My Charles 3 bank 40 amp works awesome for me with zero issues.
28 WhiteWater is offline   Reply With Quote
Old 05-15-2012, 04:15 PM
  #7    
Admirals Club
 
Join Date: Jul 2010
Location: On the Flats
Posts: 3,608
Default

Stealth One AC + DC charging.
__________________
Flatout71
------------------------------
2110 Action Craft
Coastal Bay
250 Pro XS
------------------------------
1820 Action Craft
Flats Master
175 Pro XS
------------------------------

Flatout71 is offline   Reply With Quote
Old 05-15-2012, 04:18 PM
  #8    
Senior MemberCaptains Club Member
 
Join Date: Jan 2002
Location: Wisconsin. Boat lives in Palm Beach Gardens.
Posts: 1,443
Default

One time I answered a similar thread and repeated what an engineer at Charles Charger had just told me about their chargers and the Sears DieHard Platinums but some Hull Truth experts quickly chimed in pointing out that the engineer at Charles didn't know chit...
__________________
2003 Viking 45 Convertible
slipkid is offline   Reply With Quote
Old 05-15-2012, 04:25 PM
  #9    
Senior Member
 
Join Date: Apr 2006
Location: Outside of Philly
Posts: 786
Default

So five answers and 5 different responses. Does that mean just about anyone is good enough?
__________________
Steve
1971 Mako 17 with Merc 125 (Sold...missing her already)
1989 Mako 250 with twin HPDI 150s
Docked in Cape May, NJ

skmag357 is offline   Reply With Quote
Old 05-15-2012, 04:41 PM
  #10    
Senior MemberCaptains Club Member
 
Join Date: Jan 2002
Location: Wisconsin. Boat lives in Palm Beach Gardens.
Posts: 1,443
Default

The engineer at Charles told me that their tests on the DieHard Platinums show that the flooded cell charging pattern is most effective for those batteries. Give them a call and I am sure they will help.
__________________
2003 Viking 45 Convertible
slipkid is offline   Reply With Quote
Old 05-15-2012, 05:19 PM
  #11    
Admirals Club
 
Join Date: Dec 2007
Posts: 970
Default

I'm using a ProMariner Protournament 200 (20 amps per bank) on the flooded cell profile on the same batteries you have. It works fantastic. I'm not sure why a 40 amp charger is necessary.
wstrickland1 is offline   Reply With Quote
Old 05-15-2012, 05:36 PM
  #12    
Admirals Club
 
Join Date: Jun 2011
Location: Hattiesburg, MS
Posts: 2,690
Send a message via MSN to keithelder Send a message via Skype™ to keithelder
Default

I just bought a DieHard Platinum charger today and new Platinum batteries. They are charging at the DieHard Platinum setting at 40 AMPs.

It says to charge them at 40 AMPs but what happens if you trickle charge them or do a 15 AMP charge? Any damage?
__________________
FOR SALE - Key West 2300 SS, Twin ETec 115's


Garmin 7212 Chart, GMR 18 HD Radar, VHF 300 AIS, GDL 40 Weather, GSD 22 Sounder, Fusion MS-IP700 Stereo w/ MS-NRX200 Remote
keithelder is offline   Reply With Quote
Old 05-15-2012, 06:53 PM
  #13    
Senior MemberCaptains Club Member
 
Join Date: Aug 2006
Location: LI, NY
Posts: 1,540
Default

xantrex
__________________
'67 Bertram 31' FBC "Summer Winds"
'79 Bertram 31' SEDAN (w/ Twin 2009 330hp Cummins)
'76 Bertram 28' 351's (For Sale)
'79 Bertram 35' 3116 (yes they run)
1999 Boston Whaler 28' Conquest 2x ox66 (Sold)

-50 Ton master.
Whaler1777 is offline   Reply With Quote
Old 05-16-2012, 03:31 AM
  #14    
Senior MemberCaptains Club Member
 
Join Date: Sep 2006
Location: Merritt Island ,Fl
Posts: 302
Default

I am on replacing my promariner quad as it took a poop for the second time in 6 years. Trying something different this time around
hoejef is offline   Reply With Quote
Old 05-16-2012, 06:28 AM
  #15    
Admirals Club
 
Join Date: Feb 2007
Posts: 1,622
Default

If you really want the best for your expensive AGMs, get a Newmar. Newmar is pretty accepted as #1. High end builders all put Newmars in. Also more expensive than the others, but you get what you pay for.
BlackRose617 is offline   Reply With Quote
Old 05-16-2012, 07:56 AM
  #16    
Junior Member
 
Join Date: May 2010
Posts: 27
Default

I asked the same question last year and the technical folks at Marinco recommended this charger:

http://marinco.com/product/20-amp-du...attery-charger

which is what I have installed now for two Optima D31 batteries. So far it has worked great. They said it has AGM batteries in mind.
pplourd is offline   Reply With Quote
Old 05-16-2012, 08:05 AM
  #17    
Admirals Club
 
Join Date: Mar 2009
Location: West Palm Beach
Posts: 3,191
Default

Quote:
Originally Posted by Glen E View Post
I have used a promariner charger for 4 AGM's for 4 years with no problems.

Pro mariner quad 300 charger
At Glenn's suggestion I have been using a promariner on my AGM's almost 2 years without any issues.
__________________
-38 Fountain Trip 300's....
-(SOLD) Scarab Sport Twin Merc 250
-A Couple PWC's
-Radisson Canoe
-A Bunch of Motorcycles

Rebuild Thread http://www.thehulltruth.com/boating-...-underway.html
demjjm is offline   Reply With Quote
Old 05-16-2012, 09:12 AM
  #18    
Admirals Club
 
Join Date: Jun 2011
Location: Hattiesburg, MS
Posts: 2,690
Send a message via MSN to keithelder Send a message via Skype™ to keithelder
Default

Quote:
Originally Posted by pplourd View Post
I asked the same question last year and the technical folks at Marinco recommended this charger:

http://marinco.com/product/20-amp-du...attery-charger

which is what I have installed now for two Optima D31 batteries. So far it has worked great. They said it has AGM batteries in mind.
DieHard Platinum batteries are *supposed* to be charged at 40amps. I have a DieHard charger that supports Platinum batteries and when you set it to charge a Platinum battery it defaults to 40amps.
__________________
FOR SALE - Key West 2300 SS, Twin ETec 115's


Garmin 7212 Chart, GMR 18 HD Radar, VHF 300 AIS, GDL 40 Weather, GSD 22 Sounder, Fusion MS-IP700 Stereo w/ MS-NRX200 Remote
keithelder is offline   Reply With Quote
Old 05-16-2012, 09:21 AM
  #19    
Senior Member
 
Join Date: Apr 2006
Location: Outside of Philly
Posts: 786
Default

Quote:
Originally Posted by keithelder View Post
DieHard Platinum batteries are *supposed* to be charged at 40amps. I have a DieHard charger that supports Platinum batteries and when you set it to charge a Platinum battery it defaults to 40amps.
where did you get this number so I can verify? Let me know. Thanks
__________________
Steve
1971 Mako 17 with Merc 125 (Sold...missing her already)
1989 Mako 250 with twin HPDI 150s
Docked in Cape May, NJ

skmag357 is offline   Reply With Quote
Old 05-16-2012, 09:53 AM
  #20    
Admirals Club
 
Join Date: Jun 2011
Location: Hattiesburg, MS
Posts: 2,690
Send a message via MSN to keithelder Send a message via Skype™ to keithelder
Default

Quote:
Originally Posted by skmag357 View Post
where did you get this number so I can verify? Let me know. Thanks
Well I remember reading it on THT at one time and just happened to remember it.

But... my DieHard Platinum charger by default and it says so in the manual defaults the Platinum batteries to 40 amp.

Now Odyssey makes the DieHard Platinum batteries and my group 34's have the same specs. That may help you as well.
__________________
FOR SALE - Key West 2300 SS, Twin ETec 115's


Garmin 7212 Chart, GMR 18 HD Radar, VHF 300 AIS, GDL 40 Weather, GSD 22 Sounder, Fusion MS-IP700 Stereo w/ MS-NRX200 Remote
keithelder is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Refbacks are Off

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0