batteries

I want to replace the 200ah lead acid house battery in my 2005 Beneteau 423 with a 200ah lithium iron phosphate battery. I will keep the lead acid start battery. Can I simply replace the lead acid with the lithium iron phosphate, or are there additional changes that need to be made. I am aware...

Hey All! I’m trying to re-establish my Tank Watch that a previous owner dismantled; in doing so, he removed the wires to the batteries! I’m wondering, instead of trying to figure the path & time of running wires to my main batteries, if I can simply connect my new wires to a small 12V battery I...

My old West Marine batteries for my 1986 Hunter 34 were about 6 years old and had gotten to the point that they didn't have enough juice to start the engine, so I replaced them. Same West Marine batteries, identical model. The engine is a Yanmar 3GM 30F. I left the batteries charging for several...

I’ve heard about this but never seen it done.

As a novice sailor and new 2 month owner to my 2003 Hunter 260, that hasn't seen water for 2 years, it wasn't taken care of and everything done was "how cheaply can I do it", or I'll fix it even if I don't know how. The battery needs replacing (it has 5-6 circuits going to the battery). Nothing...

Sorry if this is in the wrong sub-forum MaineSail'sMaineSail'sMusing Sub is only for him to start new threads? not really propulsion-specific but at 48V I guess here's best. . . (thanks mod) I'd rather the discussion **please** not get derailed on the design-level "big picture", maybe in...

Hello all- I have been handed a new RELiON RB50 battery. So I’m wondering if I can use it in my setup (and honestly I like learning about new things so I’d love it get some feedback and opinions and suggestions). Sorry it’s a long read... My boat currently has single interstate deep cycle...

I have an '87 Catalina 22 with 2 identical, new deep cycle batteries in parallel (a jumper between the negative terminals), a selector switch with 3 positions (bat 1, bat 2, or both) and an outboard that has no alternator. I want to connect a solar trickle charger so it recharges both batteries...

Looking for advice on power. I have a 25 foot Hunter sailboat and I want to beef up my power reserve. I replenish my battery by solar drip. Can I tie two batteries together to get more battery life or will the strength of the electricity be too much for my panel, lights... Your response...

Would appreciate advice on my plan to replace my batteries and add a charging device to keep them topped up. The boat is a 1978 Irwin 38 aft cockpit with a Westerbeake 33A. At this point, I have two very old batteries: an 8D and a Group 31. Planning to replace with HOUSE: two Trojan 105 6v...

Hi there! I am going to put a battery bank in on my Catalina 30, mostly to keep my 2.5A norcold fridge (icebox conversion kit) running when away from the slip. probably 4x of these only because that's what my neighbor got...

My Hunter 36 has 2 4D house batteries and a separate starting battery. The engine alternator recharges the starting battery but not the house batteries. I don't believe the starting battery was original equipment. I'm thinking that I need to wire all batteries together in series with an...

Hi all! First post on here. I've been lurking for a few months and learned plenty and now I would like your opinions on something I have on my mind. First my back story: There is shore power at my marina, but not at my slip. We don't consume much power - no fridge: we have an ice box, and...

A while back I stumbled on someone's video or likely picture story on how they added pneumatic rams to assist opening up compartment cover, added LEDs, built battery storage compartment and cleaned up the wiring adding various devices. If you know where to find, I'd appreciate the heads up...

I have recently purchased a Hunter Legend 450 Passage. The diesel engine is only charging the starter battery, not the domestic batteries. These charge through a battery charger when we have mains electric or the diesel generator. Am I missing something? Can I add a router switch to the system...

2014 Marlow-Hunter 40 with Yanmar 4JH5E (54 HP & SailDrive SD50) and ElectroMaax 140a Alternator My wife and I currently own the new Marlow-Hunter 40, hull #1, which we have placed in SailTime Orange County. We have had 2 years of relatively trouble free usage with just the normal wear and...