Pontoon Boat & Deck Boat Forum

Had alot of them go bad this week, 2 troll mt batts, one start motor batt all on the toon, and had to replace the 2 on my camper.

In a few years, it'll probably do it that way again.

Sucks.

Glad things are charged up and working now though.

I'm working on switching over to 2 31 series AGM's. Working overtime to pay for them. That's a fast 500 bucks, gone in a flash. Wish it was that kind, too!

Dang, that's odd to have them all go at once! Did you take a lightning strike?

I'm running 31 and 34 series Duracell Marine AGM's. They're rebadged Deka marine AGM's available cheap at Sams.

Just so you know, DieHard Platinum AGMs are re badged Odyssey batteries. Keep your eyes open for sales that Sears has them on every once in awhile. I have 2 in my Wellcraft Cuddy cabin boat.

Secret to having batteries last is never discharge past 50% and ALWAYS, completely charge them back up as soon as possible after after discharge.

Never discharge starting type batteries past 20%.

babock wrote: ... Secret to having batteries last is never discharge past 50% and ALWAYS, completely charge them back up as soon as possible after after discharge.

And 50 % State of Charge on a 12 volt battery is not 6 volts either.....
50 % SOC is 12.10 volts with 100 % SOC being 12.73 volts....
Every time you pull your batteries down past 50 % SOC you are hurting their longgivity....

The ones I had on my camper were 2 6v golf cart batts they lasted 8 years and gave up, I was quite happy with those. The 2 troll mt batts 12 v in series to give me 24v for the 70lbs troll mt. one was for sure bad 6 yrs old . The start batt for the 60hp merc was still ok but what the hell it is only money, it was 6 years old.

Just ordered a pair of Optima Blue Top AGMs. I know I could have gotten cheaper batteries but I want to not have to worry. When I got my toon it came with 2 mismatched batteries. One finally died completely and the other barely holds a charge so it was time. I liked the reviews and the fact that they're a starting/deep cycle combo, even tho some say such a thing doesn't exist. Not trying to start any wars, just felt they would work well for me...

http://www.amazon.com/Optima-Batteries- ... B006QH55YM

trucky wrote:Just ordered a pair of Optima Blue Top AGMs. I know I could have gotten cheaper batteries but I want to not have to worry. When I got my toon it came with 2 mismatched batteries. One finally died completely and the other barely holds a charge so it was time. I liked the reviews and the fact that they're a starting/deep cycle combo, even tho some say such a thing doesn't exist. Not trying to start any wars, just felt they would work well for me...

http://www.amazon.com/Optima-Batteries- ... B006QH55YM

Not all blue tops are combo.
I have a pair of optima blue top starting only batteries sitting in the garage right now. Expensive mistake.

Brashanic wrote:

trucky wrote:Just ordered a pair of Optima Blue Top AGMs. I know I could have gotten cheaper batteries but I want to not have to worry. When I got my toon it came with 2 mismatched batteries. One finally died completely and the other barely holds a charge so it was time. I liked the reviews and the fact that they're a starting/deep cycle combo, even tho some say such a thing doesn't exist. Not trying to start any wars, just felt they would work well for me...

http://www.amazon.com/Optima-Batteries- ... B006QH55YM

Not all blue tops are combo.
I have a pair of optima blue top starting only batteries sitting in the garage right now. Expensive mistake.

True, the blue tops with the gray case are starters only. I had to compare and dig a bit to make sure I got the right ones.

I've had enough problems with optimas (early death) that I would never consider buying one ever again. Ever. Never.

Agreed. I would never buy an Optima. Only Odyssey.