Quote:
Originally Posted by BruceK
After "online shopping", I was at the boat today measuring the existing batts. Another Optima Oddessy is about all that fits the bowthruster location, about $300 AUD.
The Genset 150Ah batt(? 6D in US parlance), was alarmingly hot.
I wonder how charging the 2 peripheral batteries via an 8D SLA affects things, the peripherals are not talking direct to the charger. Not sure but I think combiners are just voltage actuated.
We are making headway. Unfortunately both electricians I wanted to try are away interstate for several months. Marine service people are thin on the ground here.
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Optima and Odyssey in the same sentence sounds odd. Here, those are two different brands. Reading suggests Optima started out with a good rep, and has gone downhill from there... apparently after being sold off to a different manufacturer from original.
An Odyssey G31 sounds very viable for a thruster, if that's what will fit. Somebody on the forum recently confirmed one of the thruster installer companies over here usually fits two Odyssey G31s near their thrusters...
Sounds like a huge battery for genset starting. Our current is a flooded G24, and whenever it craps out I'll probably switch to a relatively tiny Odyssey Extreme ODX-AGM34 (was PC-1500) with 850 CCA.
BTW, we ran for several years with no charger on our genset battery other then the generator's alternator. The AGM didn't self-discharge much, so no problem. We happen to have a dedicated charger for the genset battery on this boat, and our other banks are 24V, so I'll keep it I guess... but don't really think it's all that necessary in an all-12V boat. Especially if it's easy to use jumper cables from some other 12V source in an emergency.
Pinning down those connection between batteries will probably move you further ahead...
-Chris