So who has had batteries that have lasted beyond 4 years of

[baz]

Just wondering how many Tug owners have had their stock batteries last more than 4 years ? Mine are just over the 4 year mark and are doing fine. All I've had to do is to check fluid levels and top up as necessary.

Can I get maybe 5 years, 6 years or more ?

 

[knotflying]

Batteries can last a long time as long as they are not abused. The worst thing you can do is have them discharge. I had to replace my two house batteries shortly after I got the boat. There were two bad cells in one and one bad cell in another. I bought Walmart batteries for $70.00 each and I can't complain. At $70.00 each I may just change them every four years and avoid having issues at inconvenient times.

 

[baz]

Mike: Can you post back or PM me Walmart $70 battery specs. Thanks... 🙂

 

[knotflying]

Deep cycle dual purpose Group 27. The batteries are made by Johnston Control, one of the best battery makers around.

 

[PhilR]

Mike, I assume that you have three dual purpose and one starting battery?

Phil

 

[assignment]

We have about 3 yrs, 6 months on our six OEM group 27 wet cells. All we do is conduct routine checks on cell fluid levels and keep 'em clean as possible. We also just replaced straps, 2 1/2 inch straps, which required us to lift the batteries off their trays to run the new straps underneath. Our boat stays in the water all year long (except for annual haul out) plugged up to shore power unless we're out cruising.

I've been debating the AGM, wet cell issue when we upgrade. Undecided, but know the AGMs are nice (and expensive).
//Bud

 

[knotflying]

Mike, I assume that you have three dual purpose and one starting battery?

Phil

All dual purpose.

 

[baz]

We have about 3 yrs, 6 months on our six OEM group 27 wet cells. All we do is conduct routine checks on cell fluid levels and keep 'em clean as possible. We also just replaced straps, 2 1/2 inch straps, which required us to lift the batteries off their trays to run the new straps underneath. Our boat stays in the water all year long (except for annual haul out) plugged up to shore power unless we're out cruising.

I've been debating the AGM, wet cell issue when we upgrade. Undecided, but know the AGMs are nice (and expensive).
//Bud

I like knotflying (Mike's) approach to batteries. 🙂

 

[Bobsea]

If the batteries are well maintained, fluid level and specific gravity checked. Do not allow a battery to completely discharge, or allow the charger to over charge and boil off the battery you should get 5-10 years off a good set of commercial marine batteries.