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Jan 23rd, 2013
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2009 Mercury 150 EFI Charging System and AGM Batteries #12685952
03/23/18 03:27 PM
03/23/18 03:27 PM
Joined: Jul 2011
Posts: 324
Carthage, Tx/Lake Fork
B
buggsboy Offline OP
Angler
buggsboy  Offline OP
Angler
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Joined: Jul 2011
Posts: 324
Carthage, Tx/Lake Fork
The cranking battery on my 2009 Mercury 150 EFI is getting weak, and I am considering going to an AGM battery as a replacement. I know that some Mercury charging systems are not compatible with AGM batteries. Can anyone tell me if an AGM battery would be a good choice as my next cranking battery? Thanks


PB. 10 lb 12 oz
Re: 2009 Mercury 150 EFI Charging System and AGM Batteries [Re: buggsboy] #12685984
03/23/18 03:41 PM
03/23/18 03:41 PM
Joined: Apr 2015
Posts: 1,675
Grand Prairie Tx
Curtbass Offline
Extreme Angler
Curtbass  Offline
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Joined: Apr 2015
Posts: 1,675
Grand Prairie Tx
Stator type charge systems= wet cell lead/acid batteries only.
Alternator style charge system= AGM BATTERIES


92' ChampioN 201DCR Elite
13' Yamaha250SHO
Re: 2009 Mercury 150 EFI Charging System and AGM Batteries [Re: buggsboy] #12686326
03/23/18 07:50 PM
03/23/18 07:50 PM
Joined: Jul 2011
Posts: 324
Carthage, Tx/Lake Fork
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buggsboy Offline OP
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buggsboy  Offline OP
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Carthage, Tx/Lake Fork
Wasn’t sure if my motor had an alternator or stator system. Looked it up and mine has alternator, so agm it shall be. Thanks

Last edited by buggsboy; 03/23/18 07:51 PM.

PB. 10 lb 12 oz
Re: 2009 Mercury 150 EFI Charging System and AGM Batteries [Re: buggsboy] #12686948
03/24/18 03:45 AM
03/24/18 03:45 AM
Joined: Apr 2015
Posts: 1,675
Grand Prairie Tx
Curtbass Offline
Extreme Angler
Curtbass  Offline
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Joined: Apr 2015
Posts: 1,675
Grand Prairie Tx
Good deal. If running graphs,aerators,recirc pumps all day get a Group 31 ( if you have room) with at least 200 Reserve Capacity. Also as many cranking amps as possible (over 950) & it'll keep you & that Merc happy.
Academy has Exide Group 31 AGM Dual purpose. 1150 Cranking Amps & 200 RC for $269 + tax. Take an old battery in for -$20 for core charge. $249 + tax. Good long lasting batteries.

Last edited by Curtbass; 03/24/18 03:52 AM.

92' ChampioN 201DCR Elite
13' Yamaha250SHO
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