trit21
Active Member
Sears Marine Premium Group 31 batteries is what I use, they are made by Odyssey and are a great battery, highly recommended.
Sears Diehard Battery Warranty ISSUE!
- Thread starter chandalen
- Start date
jaywoodz
Member
- Nov 12, 2012
- 522
- Boat Info
- 1999 Sea Ray 310 Sundancer
- Engines
- Twin 350 MAG MPI Horizon w/V-Drives
Currently, I have 3 of these:
Currently, I have 3 of these:
These are, I believe, the same AGM marine battery sold by Sam's Club as Duracells for about $100/less each. Made by East Penn.
Last edited:
jaywoodz
Member
- Nov 12, 2012
- 522
- Boat Info
- 1999 Sea Ray 310 Sundancer
- Engines
- Twin 350 MAG MPI Horizon w/V-Drives
It says west marine on them.
East Penn is one of the handful of major battery makers. It sells batteries to retailers, like West Marine, who put their names (or a licensed brand like Duracell) on them. Identical batteries can be had at different prices (and warranties) if the underlying supply chain is understood.
rcmafgny
Active Member
- Oct 10, 2009
- 1,245
- Boat Info
- 2008 33 Sundancer; Kohler Gen set; Simrad electronics
- Engines
- Twin 8.1 Horizons w/ V Drives
Believe the same is true for Interstate... Made by Johnson Controls... also makes the Kirkland battery for Costco
kaz911
Active Member
Optima Bluetop D31M are only 75 Ah - and not "real" AGM but proprietary Spiral technology. In my experience they do not like heat very much. The best battery you can buy for your boat is Lifeline AGM's. My previous sailboat had Bluetops in - lasted for 2 years and died. I replaced them with 2 Lifeline's and they are still running strong now 7 years later.
The PO of my boat put Bluetops in (2 years ago) and after the summer I'll replace them with Lifelines. They are already showing their age - and for the Weight vs Ah - I would get so much more from Lifeline in terms of capacity per LBS. Plus a 5 year prorated warranty is rather nice...
1000islander
Member
I purchased 8 AGMs from Sears.....I had one go bad at 2yrs 11.5 months. Took it back to store and they replaced it no questions asked. They even were nice enough to find the paper work when I purchased them. Must be the store you are dealing with.