East Coast Dave Posted December 30, 2016 Report Share Posted December 30, 2016 Before I start I'm sorry for another battery post. I tried to search for the past ones but didn't have a lot of luck. I may have a battery that is on its way out. I took it to the local Advance Discount Auto thinking even though the battery was just showing 12 volts that they could say if it was good to hold a charge or had something wrong with it were it may not be able to hold a charge. He just say it was showing 1/2 the cranking amps and it would need to be charged before he could tell me anything. I have it on a battery tender junior getting a charge to see if I can get a full charge on it overnight. I was thinking if I needed to buy a new battery, for a 90 hp 2 stroke Yamaha, I would go with what I alway go with, the dual purpose blue top from Optima. Then I was thinking I only needed 500 cranking amps and the previous owner had an auto craft battery that is from 4/14. Not sure if I'm wasting the money just going with to old standby blue top... I don't want to penny wise and pound foolish... below is the old battery and what the owner's manual says I need. Thanks for any suggestions. Link to comment Share on other sites More sharing options...
craSSh Posted December 31, 2016 Report Share Posted December 31, 2016 Not saying that you should go all out and get a $300 battery, but I don't think anyone says " I'll just get by with the minimal battery".... Especially on the water Link to comment Share on other sites More sharing options...
polliwog Posted December 31, 2016 Report Share Posted December 31, 2016 A fresh Interstate battery will do the job. I have a 90HP Yamaha that does fine with a 24 group Interstate. BTW I just got a jump start battery system just in case you need one. Very small and effective. Link to comment Share on other sites More sharing options...
MPFit Posted December 31, 2016 Report Share Posted December 31, 2016 I've got a 150vmax 2 stroke that came with the auto craft battery. Starts it up every time and runs everything on the boat with ease (powerpole / gps-fishfindsr). When it does, I'll probably get same one. I'm very happy with it. It's not that it's the minimum needed but if it ain't broke don't fix it Link to comment Share on other sites More sharing options...
fin-addict Posted December 31, 2016 Report Share Posted December 31, 2016 deka or everstart wet cell dp 27 series have served me well for years. low cost also. Link to comment Share on other sites More sharing options...
Headhunter Posted December 31, 2016 Report Share Posted December 31, 2016 Just put a sams club Duracell AGM 24 series in the other Maverick. Cheap and had plenty of cranking power. I don't remember the specs but another forum member suggested it. You might want to check it out. Link to comment Share on other sites More sharing options...
East Coast Dave Posted December 31, 2016 Author Report Share Posted December 31, 2016 I was actually looking at a Duracell online. I wanted to stick with the 24 series since it's tight under the console to begin with. Happy New Year. Link to comment Share on other sites More sharing options...
fishmanjj Posted December 31, 2016 Report Share Posted December 31, 2016 Ive used Deka's for years....no problems if maintained somewhat regularly. Link to comment Share on other sites More sharing options...
Headhunter Posted December 31, 2016 Report Share Posted December 31, 2016 57 minutes ago, East Coast Dave said: I was actually looking at a Duracell online. I wanted to stick with the 24 series since it's tight under the console to begin with. Happy New Year. I almost think it was a 34 but it dropped in a 24 battery tray. I think they are almost the same size if not the same. AGMs in general are a little smaller than lead batteries. Happy new year to you and your family. Link to comment Share on other sites More sharing options...
hurricane Posted December 31, 2016 Report Share Posted December 31, 2016 I 2nd the Duracell AGM. Think best bang for your buck. Link to comment Share on other sites More sharing options...
LarryH Posted January 1, 2017 Report Share Posted January 1, 2017 Optima? Link to comment Share on other sites More sharing options...
Wanaflatsfish Posted January 1, 2017 Report Share Posted January 1, 2017 be sure to check on whether you should use a AGM.....for example, on my Yammie 50hp, the dealer said DO NOT USE AN AGM. A standard wet cell series 34 should do fine, so long as you are using a charger between trips. dc Link to comment Share on other sites More sharing options...
FROZEN Posted January 1, 2017 Report Share Posted January 1, 2017 Hi everyone, happy New Year,. I bought a "new to me" 2200/f250 at Thanksgiving. The boat is at our local PF/Yam dealer getting a baseline inspection / a lot of small upgrades done for me to make it like new and reliable. I wanted to get rid of the lead acid batteries in the CC due to my perceived corrosion problems with that type and the batts are 2 1/2 years old. When I asked to swap the out with AGMs, I was told to bring them in and they would install. They only stock lead acids, and don't recommend AGMs. Anyone know why? The service manager really didn't have a good answer, except that "it's not recommended". Link to comment Share on other sites More sharing options...
Headhunter Posted January 1, 2017 Report Share Posted January 1, 2017 I switched to AGMs in 2008 and never looked back. The 2008 Pathfinder I sold in 2013 still had the original Optimas in it. I do remember we had issues with the charger type at that time. AGMs take a different charging profile and the older chargers didn't have it. You need to make sure the charger has an AGM or glass matte setting. To get maximum length of service they should be on some type of trickle charger all the time when not in use. There is also a potential issue recharging from a very low charge state in the battery if you don't have the right charger. I am not an expert but I am a retired JCI employee and JCI makes Optima. I got some great info and basic education from some of my co-workers there. They also have good guidance on their website. I have used AGMs on everything from 40 to 250hp on my boats since 2008. I have no idea why your service manager told you what he told you but I think you will get different feed back from the owners in this group. Good luck with your new boat. Link to comment Share on other sites More sharing options...
imsnookyrd Posted January 1, 2017 Report Share Posted January 1, 2017 Been running Optimas since 2002 and just in the last 2 years put in my second set. I don't understand the recommendation to not use AGM's either. Link to comment Share on other sites More sharing options...
FROZEN Posted January 1, 2017 Report Share Posted January 1, 2017 9 hours ago, Headhunter said: I switched to AGMs in 2008 and never looked back. The 2008 Pathfinder I sold in 2013 still had the original Optimas in it. I do remember we had issues with the charger type at that time. AGMs take a different charging profile and the older chargers didn't have it. You need to make sure the charger has an AGM or glass matte setting. To get maximum length of service they should be on some type of trickle charger all the time when not in use. There is also a potential issue recharging from a very low charge state in the battery if you don't have the right charger. I am not an expert but I am a retired JCI employee and JCI makes Optima. I got some great info and basic education from some of my co-workers there. They also have good guidance on their website. I have used AGMs on everything from 40 to 250hp on my boats since 2008. I have no idea why your service manager told you what he told you but I think you will get different feed back from the owners in this group. Good luck with your new boat. Thanks.......I am having a lift and dock put in when the permitting is complete (another story someday). At that time, I'll have power next to the boat, and can keep on charge after each use. I'm good to go on the onboard charger. That's when I'll replace all the batteries. I've been an anonymous reader for some time now and everyone has written great and honest advice to help get me back into the fishing and boating world. I think I've read every post, I looked at many PFs, and was amazed that most sellers didn't know much about their boats. Several were unaware about this forum. I found a freshwater, meticulously kept, 2008 TE, and couldn't be happier. Many thanks to all. Mike Link to comment Share on other sites More sharing options...
JEM Posted January 1, 2017 Report Share Posted January 1, 2017 22 minutes ago, Kilcoin said: Thanks.......I am having a lift and dock put in when the permitting is complete (another story someday). At that time, I'll have power next to the boat, and can keep on charge after each use. I'm good to go on the onboard charger. That's when I'll replace all the batteries. I've been an anonymous reader for some time now and everyone has written great and honest advice to help get me back into the fishing and boating world. I think I've read every post, I looked at many PFs, and was amazed that most sellers didn't know much about their boats. Several were unaware about this forum. I found a freshwater, meticulously kept, 2008 TE, and couldn't be happier. Many thanks to all. Mike If you have bought a boat,you must know that the forum members have to see pictures! Please! Welcome! Link to comment Share on other sites More sharing options...
Wanaflatsfish Posted January 2, 2017 Report Share Posted January 2, 2017 here is an interesting chart from DEKA where they discuss various options for batteries.....note the 60-200 on Yamaha section all indicate the 125 RC are met and they are all wet cell. As mentioned, I have a skinny mini 50ph sammie dog on my skiff....i asked the guys at the boat center (Yamadog dealer)....about installing an AGM...the service manager said - don't do it...why? I asked...he said, they will work, but, given the design of the engine (remember, my engine is a 1998 - way before AGM's), they have had "funky" electrical problems with the engines using AGM's which have been hard to diagnosis...the small engines have a "stater" and not a large alternator. That being said, I did run the Marine Max DEKA white battery 1000CCA on the F150 (2005) model for many years without a problem...my simple, non-sophisticated gear head understanding....the standard batteries accept the high output of the newer larger alternators when underway and when charged....When I went to a 36V TM..I went with 4 series 31's acrross the console and never had a problem....ran the livewells all day and had a 1-2 all switch in the event of a need to crank..... I think the real key is: 1.) Always charge within a day or so that you return 2.) Install a stealth system if you find your self doing multiple trips without charging 3.) I only like to use AGM's for troller (DEKA's) seem to work well - heavy, but, they work 4.)For small motors and 2 strokes, use the the wet cell, and just check the water on a regular basis - I use a combination battery for my house - dual purpose series 34 as I run two power poles....so far, never a problem at 30+ trips...in the last year. http://www.dekabatteries.com/assets/base/0406MarineApplicationslayout.pdf https://www.dcbattery.com/faq.html here is another site with some good battery info.. dc Link to comment Share on other sites More sharing options...
Drummer Posted January 3, 2017 Report Share Posted January 3, 2017 Pretty soon we'll be able to get Lithium Ion batteries for our boats. Group 24 will weigh less than 10 pounds. Can't wait until they're affordable! Link to comment Share on other sites More sharing options...
hurricane Posted January 3, 2017 Report Share Posted January 3, 2017 Pretty sure the issue with AGM's on some motors is due to the lower internal resistance. AGM's have a lower internal resistance compared to wet cells, because of this they can output more power. I have never had any issues with AGM's and the motor, have run them with my last 3 motors. 90, 200, and 150 Yamahas. Would love a Lithium battery, but man are they pricey. Maybe one day! Link to comment Share on other sites More sharing options...
wayne Posted January 3, 2017 Report Share Posted January 3, 2017 Everything I've read about the AGM's were charging issues.. Especially if the batteries were drained past a certain point, most chargers would not re-charge them... Link to comment Share on other sites More sharing options...
blackacre Posted January 3, 2017 Report Share Posted January 3, 2017 Just replaced a Optima Blue top on my Pathfinder with a Duracell AGM purchased at Sam's Club. This is my starting/house battery/ So far so good. Sam's Club recently had the batteries on sale. Link to comment Share on other sites More sharing options...
VsteveV Posted January 3, 2017 Report Share Posted January 3, 2017 How long did the blue top last ? Link to comment Share on other sites More sharing options...
blackacre Posted January 4, 2017 Report Share Posted January 4, 2017 3 hours ago, VsteveV said: How long did the blue top last ? It was on the boat when I bought. If I figured out the date code correctly, it was 6 years old. Which is fantastic. But for the price difference I thought I would give the Duracell AGM a shot, $150 vs $315 for a group 31. Link to comment Share on other sites More sharing options...
FROZEN Posted January 5, 2017 Report Share Posted January 5, 2017 All, Attached is a PDF on the battery recommendations and installation guidelines from Yamaha. In summary, AGMs are allowed for most 4-stroke models. The document is dated 2014, but was updated last year, as indicated by the arrows. I can't guarantee it the latest and greatest, but it seems to be close. CAUTION: This is an engineering advice document and it is intended for Yamaha dealers and their service professionals. It is NOT intended for customers use. If you use to make decisions on your boat, make sure you understand all the notes and caveats included. If you don't understand what you are seeing, please print, and ask a Yamaha professional to explain it to you. For right now, I'm replacing the cranking battery with a higher capacity lead acid due to age. The two TM batteries are also lead acid, but slightly newer, and test good, so I'll keep for now. After I learn more about my "new to me" boat, I plan to switch all to AGM, possible this summer. Thanks again for every ones help. Yamaha Battery bulletin.pdf Link to comment Share on other sites More sharing options...
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