Fighterpilot
Senior Member
- Joined
- Apr 17, 2011
- Messages
- 380
Have searched forum but still need some guidance. This is a continuation of my search for a solution.
Boat is 34 Californian LRC with a pair of 3208N and two 8Ds. One 8D has failed--got it out, the other 8D will come out when we take out the fuel tank to repair or replace in the next month or two. Batteries are on outboard side of port engine and nearly impossible to get to. To check the water on the aft battery need to use mirror and flashlight. Going to replace with a smaller form, pairs for starting, and another pair for house. Don't use for live aboard or more than a few days at a time. Have generator but would run small refrigerator some. Need to limit length to 11 inches to fit in existing boxes.
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Thinking two 12 volts in parallel for start and two 6 volts in series for house. To AGM or not is one of my questions. Sams has AGMs at $100.00 each that would work in the 12 volt series. Duracell now has the business at our local Sams.The deep cycle pair would would not offer as much Ahrs as a pair of 6volts but would probably suffice. A pair of West Marine 800 Seavolt, which would give* similar cranking amps to the AGM pair I would use is actually more expensive so it appears the AGM option is not all that much more in cost, but to stay at the $99.00 each AGM cost I give up some Ahrs. for the house side. Considering the location of the batteries and difficulty of adding water the AGM has some pluses going for it. The boat battery charger is a large Guest system. Understand should not mix flooded and other types of batteries.
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Should I consider AGM or stay flooded with a pair of 6 volts and the highest CCA flooded I can find that will fit within the 11 inch length limit? Cost either way doesn't appear to be a big factor in this case. Sams has EGC2 for $89.00 and the GC2 for $79.00. May have to go with West Marine Seavolt to get CCA wanted and stay within length limit but it is $125.00. Need a pair I believe. AGMs wuld be $100.00 each.*
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Boat is 34 Californian LRC with a pair of 3208N and two 8Ds. One 8D has failed--got it out, the other 8D will come out when we take out the fuel tank to repair or replace in the next month or two. Batteries are on outboard side of port engine and nearly impossible to get to. To check the water on the aft battery need to use mirror and flashlight. Going to replace with a smaller form, pairs for starting, and another pair for house. Don't use for live aboard or more than a few days at a time. Have generator but would run small refrigerator some. Need to limit length to 11 inches to fit in existing boxes.
*
Thinking two 12 volts in parallel for start and two 6 volts in series for house. To AGM or not is one of my questions. Sams has AGMs at $100.00 each that would work in the 12 volt series. Duracell now has the business at our local Sams.The deep cycle pair would would not offer as much Ahrs as a pair of 6volts but would probably suffice. A pair of West Marine 800 Seavolt, which would give* similar cranking amps to the AGM pair I would use is actually more expensive so it appears the AGM option is not all that much more in cost, but to stay at the $99.00 each AGM cost I give up some Ahrs. for the house side. Considering the location of the batteries and difficulty of adding water the AGM has some pluses going for it. The boat battery charger is a large Guest system. Understand should not mix flooded and other types of batteries.
*
Should I consider AGM or stay flooded with a pair of 6 volts and the highest CCA flooded I can find that will fit within the 11 inch length limit? Cost either way doesn't appear to be a big factor in this case. Sams has EGC2 for $89.00 and the GC2 for $79.00. May have to go with West Marine Seavolt to get CCA wanted and stay within length limit but it is $125.00. Need a pair I believe. AGMs wuld be $100.00 each.*
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