battery

Something us drawing the batteries down but I can't figure out what. I've tried to isolate the culprit without luck. I have a dual battery system and - All is Good if I leave the battery Switch in Off. No drain down of the batteries. Troubleshooting so far, I got 2 new batteries and a new...

2006 Sundancer 320 We need to replace our 30amp converter/charger, but are having trouble finding one below 40amp. I've had many 320 owners tell me they've installed a 40amp with no issues, but I wonder about wiring issues with going from 30amp to 40amp? Anybody have any experience with this?

I bought two new port side engine batteries three weeks ago as I was prepping the boat to get put in. I did not run hardly anything on these batteries before the boat went in. After it was dropped in the water, I went to start the port engine and it would barely turn over. That day I finally...

Hey folks. Hopping to get some input on what happened to me yesterday. 2003 Sundancer 240 with 2003 5.0 MPI. she was launched Wednesday, commissions,tuned up and a new belt put on by a reputable large marina in my area where I store her for the winter. Yesterday I ran through my checklist...

Got a Diehard 800 cold cranking amps marine starting battery at Advance Auto for less than $150. The marina said go for the CCA. I only had 3 years on a 1st Interstate deep discharge but the final start of season was a flop. I have one battery starting a 305 with a low voltage alarm and audio...

Hi guys, need some newbie advice! Sea Ray 320 2007 I stupidly left both my battery isolators + some light switches on overnight. I came over today and the 12V battery in the control panel shows dead. However I did leave shore power + AC converter (battery charger) on the same night. Should...

MyWay - 2006 Sea Ray 280 with dual 4.3l Mercruiser Hit Port ignition switch - sounds like a dead battery (clicking sound) Test Battery 14.7 volts - will start the starboard engine Bypassed slave solenoid - start clanks, bypassed the slave solenoid on the starboard engine, the starter cranks...

Good afternoon fellow boaters! Just need some advice—so my 2005 Sundance 280 4.3L’s has this problem of either having one of the engines shut off a few mins after I start it up, or an engine not kick on at all (Yesterday went out on the lake, shut it off, and then had to drive back with one...

I installed new batteries and connected the polarity reversed (red wire to neg and black wire to positive) and started the boat, which did not start. I connected the batteries correctly and all the electronics seemed to work but the boat did not start. However, I can hear a "click" (engine...

My external portable battery charger somehow disappeared from my garage, so I'm in the market for a new one. I use it to charge my Jet Ski Batteries over the winter, used it to charge my group 27 batteries on my runabout before I sold it, charge automotive batteries when someone leaves the dome...

The battery shop said I should check the water level in my battery monthly and add distilled water as necessary. The battery would be ruined if a plate were exposed and turned white. Somehow I had gotten the idea that all new batteries were maintenance free. Awkward job.

Hi folks, our 1990 express cruiser has the 2 454's. I'm installing a new battery isolator, on the package it states "this isolator will not with self-exciting alternators. My question is, do i have self-exciting alternators on our boat?? I put new alternators on 2 years ago. I have pics of the...

Think my battery charger is not working well. Only shows 2 amps when charging...SB battery is showing to be replace based on my battery tester...it is the one by itself, other bank is tied together in parallel. Don't understand the setup yet. I was trying to get a Pronautic 30AMP - 3 Bank, but...

Just took possession of a DA330 and have a QQ. Is it normal to have the helm instruments powered only by one battery bank as opposed to both?

I recently had batteries go dead on me and was wondering if anyone has ever installed a battery charge meter to see how much charge is remaining. Or is there a good rule of thumb to know how much battery life is left?

New to this site and power boating. Just bought a 2006 sundancer 300 and I think I mucked up my batteries some how. Boat was running fine and then we hooked up to shore power overnight and didn’t switch the shore power switch to on and never turned on the AC convertor switch to charge the...

Hi Can anyone give me some advise on solar powered battery chargers Thank you

Hello, Stupid question here because I didn't take a picture before I took them out. What is the correct wiring setup for a 2011 185 sport for the batteries. I assume a positive from the switch goes to each battery and then the 1 negative goes to one of the 2 and you connect to the other...

Hi CSR, I need help. I took out the battery from our 2018 SPX 190, took it home and charged it. 2 days later I returned and reinstalled it. After reinstalling, I turned on the battery switch, but all the electrical system is completely dead as though there is still no battery connected...

New to me 97 sundancer 500 with 240v,120v,24v and 12v systems 7 battery's, 2 x12v =24v in series for Catapillar C12s, 2x12v in parallel for house, 1x12v for deisel westerbeke generator. 2 inverters, a 24v and a 12v. ....24v banks fine- batteries charge on shore and under way. 12v "house"charges...