Tenacious
Active Member
- Jun 28, 2010
- 152
- Boat Info
- 2005 420/455 DB
Raymarine E125/E127
Highfield 360CL 25HP Yamaha
- Engines
- Cummins 480 CE
I searched but could'nt find anything specific to my question so I started this new thread. Sorry if it turns out to be a repeat.
I recently purchased an immaculate 420 with 240 hours. It's powered by Cummins 480 CE's (446HP). Broker installed six new interstate batteries at start if season and upon my taking delivery, as a result of survey.
After putting on about 20 hours I've noticed the port side batteries seem not to charge when underway. If I run generator there are no issues but without, the batteries will eventually faiil. The morning after a recent overnight at anchorage was met with dead house batteries. The only thing on during the overnght were the galley and cockpit fridge. These same batteries are evidently used for starting the generator as when I tried, gen would not turn over. I then went to bridge and started starboard engine with no issue but port engine would not start without emergency bypass. I ran them both hoping I could then start gen but that did not work. As a result, I swapped out the thruster batteries with the house and was then able to start generator and charge all. Upon doing so the port engine also started without the need for bypass. After starting generator I left on for a couple hours and all batteries charged with no more issues.
To further explain the layout, there is one battery bank on the starboard side for the bow thruster set up for 24V. There are two banks on the port side. The one forward to port is the one which seems to lose charge and die. I half hoped that I may have had a bad battery and by swapping could identify this as such but that was not the case as issue still occurrs.
While underway and with generator off, I've been monitoring the smartcraft gauge for the batteries and see that the port side seems to be drawn down by something. When underway we listen to Siruis and have have nav electornics and fridge on but that's it. This should not cause the issue. I've checked the DC panel to insure I'm not running anything I shouldnt be and all appears as it should.
Could this issue be simply due to faulty alt on port engine? Or maybe just a lose belt? I've never had one go bad before.
Thanks for any info that anyone is able to share!
I recently purchased an immaculate 420 with 240 hours. It's powered by Cummins 480 CE's (446HP). Broker installed six new interstate batteries at start if season and upon my taking delivery, as a result of survey.
After putting on about 20 hours I've noticed the port side batteries seem not to charge when underway. If I run generator there are no issues but without, the batteries will eventually faiil. The morning after a recent overnight at anchorage was met with dead house batteries. The only thing on during the overnght were the galley and cockpit fridge. These same batteries are evidently used for starting the generator as when I tried, gen would not turn over. I then went to bridge and started starboard engine with no issue but port engine would not start without emergency bypass. I ran them both hoping I could then start gen but that did not work. As a result, I swapped out the thruster batteries with the house and was then able to start generator and charge all. Upon doing so the port engine also started without the need for bypass. After starting generator I left on for a couple hours and all batteries charged with no more issues.
To further explain the layout, there is one battery bank on the starboard side for the bow thruster set up for 24V. There are two banks on the port side. The one forward to port is the one which seems to lose charge and die. I half hoped that I may have had a bad battery and by swapping could identify this as such but that was not the case as issue still occurrs.
While underway and with generator off, I've been monitoring the smartcraft gauge for the batteries and see that the port side seems to be drawn down by something. When underway we listen to Siruis and have have nav electornics and fridge on but that's it. This should not cause the issue. I've checked the DC panel to insure I'm not running anything I shouldnt be and all appears as it should.
Could this issue be simply due to faulty alt on port engine? Or maybe just a lose belt? I've never had one go bad before.
Thanks for any info that anyone is able to share!