I've had this battery (and a Group 24) on my boat for the past 3 years and it hasn't failed once. Of course, my batteries are connected to an on-board charger that maintains them and where other brands (Interstate and DieHard) have failed after 18 months with the same set up these have excelled and this in a very hot environment (FL). You can't go wrong and they're made by East Penn so it's the same company that makes Deka Batteries very good!

Purchased three a year ago for my bass boat and they are going strong. Purchased two more recently for my camper trailer to run in parallel for longer lasting power so that we may boondock for longer periods.

Both 2 for our RV, works great, no problems

Lasted five full seasons.

I already had two batteries like this for my solar setup, so I decided to purchase another to add for more capacity. I like Deka/Penn batteries the maker of duracell, but there was one thing I noticed with the purchase this battery. This is a Dual Purpose deep cycle battery so my reserve will not be as much as the other two. Seems to me duracell is labeling these a a true 12v deep cycle Marine /RV when in fact its a dual purpose battery. The other Duracells have given good performance. Just make sure if you want more reserve look for the duracell Group27 with 575cca and 705mca, it is rated at 23 amps for 200minutes and is a 90amp hr@ 20hr rate. The dual purpose battery is the last battery in back with red arrow.

After hours of recon and a call to Duracell. This appears to be mislabeled as a "Deep Cycle" and is in fact a Dual-purpose (Starting and Cycling) marine battery. Duracell confirmed the specs match exactly to their dual-purpose battery specifications. 888-844-7704 call to confirm they are aware of the issue. Hope this saves other hours of your time!!!!!

If I were to invent a battery that could stand up to a 36 month battery warranty I’d be a multi-millionaire. I have two boats, one has a huge house bank of 6 marine lead cell and 2 AGM’s for starting. The other has one AGM starter and 3 lead cell for trolling. Needless to say I seemed to be buying a battery every other month for some reason. Tried the Everstarts and they are terrible, lasting maybe 13 months at best. Tried Deka and had even worse results with them going out annually but they had a 18 month warranty. Then switched to Duracell from Sam’s and have had no trouble for the past 2 1/2 years. So far I’ve switched all on the large boat to Duracell and this weekend replaced the last P0S everstart on the smaller boat to Duracell. I hope these continue to work well for me and highly recommend. I will never give 5 stars because that would be the non-existent lifetime battery that we’re all searching for.

I have used these Duracell Marine Batteries for the past several years. I use them in gangs of two per group, a total of 6 batteries for 12V power backup systems with 120V inverters. About 2008 I purchased two of these and they lasted just short of three years with weekly trickle charging, and usage maybe 15 to 18 times a year running them down to 50% remaining charge. in 2011 I purchased 4 units, set them up with Duracell battery maintainers, and they were used probably 20 times a year, from 30% to 50% discharge. My units that were purchased in 2011 just gave up the ghost a few months ago.. over 3 years operation as standby energy with the battery maintainers hooked to them. Monthly water addition required of course. Not too shabby for $80 deep cycle batteries. I have friends who spent the giant bucks for Optimta's, barely got 18months life from them, a few just over 1 year. What can I say, when you need reliability, stick with Duracell. I am treating myself to a christmas present of 6 new 27DC group Duracell Marine batteries... I believe these are an excellent purchase, as long as you keep them properly maintained and excercised.

12 month warranty!

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