Battery temp.....

[oscarvan]

Good to read it's working. I remember now that a few modern chargers do allow for a one or two level charge. Same on my inverter/charger.

My old and simple Raritan charger/coverters are just set to the float level and deliver what is required to get them there if low.

So, What is your next high adventure project?

Finish W/D install. Waiting on dryer then much trim work.

Then it's time to start looking at the flybridge/back deck........

 

[oscarvan]

Oh, one more thing. While I was scratching my head about the warm batteries the salon CO alarm went off. PO installed a hard wired CO detection system with sensors in the salon by the helm, in the VIP cabin and in the master cabin.

Now I have not researched when he put these in, and they have a limited life. The one in my RV said to replace it every 5 years, it died at 4-1/2. So, initially I wrote it off as being "tired" and disconnected the power supply.

Then the master stateroom one went off...... Disconnected power to that one too. Coincidence? Hmmmmmmm. VIP cabin one was quiet, but the door was closed.

After it was all said and done and the problem was fixed I thought about this again and did some research. Turns out that a CO detector will go off with 30ppm of CO in the air. But, there were a LOT of reports of them going off in residences when there was serious battery charging going on, specifically golf carts.

Turns out the CO detectors will also go off at 300ppm Hydrogen......

 

[Sadey]

Low voltage will also set them off. My neighbor found out the hard way after replacing three on his sailboat.

 

[oscarvan]

Low voltage will also set them off. My neighbor found out the hard way after replacing three on his sailboat.

Yes seen that, but that's an intermittent beep and they all do it. Here it was the constant beep, with red light, and only two out of three did it. Also, they are on the 12V system whereas it was the 32V system causing the issue.

 

[SKYCHENEY]

Boiling batteries will set them off. Mine have gone off while doing an equalize charge before.

 

[Scarlett]

My co alarm went off when we varnished inside, didn’t like the smell I guess. John

 

[edward]

Is there a special temp sender for your batteries or are you just reading an IR gun , or is there a special sensor built into the new batteries?

 

[Jammin']

Is there a special temp sender for your batteries or are you just reading an IR gun , or is there a special sensor built into the new batteries?

They are temperature sensors from the battery chargers and alternator voltage regulator that attach to a battery terminal and reduce the charge rate to prevent charging at too high a rate and over heating of the batteries.

 

[oscarvan]

Is there a special temp sender for your batteries or are you just reading an IR gun , or is there a special sensor built into the new batteries?

Both. The sensor is on there to feed the info to the charger, but I was diagnosing the problem with the IR gun.

 

[Photolomy]

You guys know that diesel engines aren't the CO threat that gas engines are.

 

[oscarvan]

You guys know that diesel engines aren't the CO threat that gas engines are.

PO put it in.....

 

[Boatsb]

Dam the torpedoes. It's been misunderstood long enough.


The battery temperature sensor is for the charger or alternator to adjust its amperage while charging. Ambient temperature is not as important as the battery temperature. I also use alternator temperature sensors on charging systems for similar reasons.

A good system will adjust the charge parameters based on temperature, voltage and sometimes other variables. A poorly designed or deployed system will just cook things.

As for the CO monitor. Diesel does not emit the CO but the guy next to you may have a gas engine or genny running and its better safe than dead.

 

[Captain Ralph]

My co alarm went off when we varnished inside, didn’t like the smell I guess. John

Varnish or paint fumes, Battery gasses, Last nights baked beans, Bic lighter will set off any better CO alarm.
It may not be looking for CO, just anything less than the expected O2 level.

 

[Beachcomber]

You guys know that diesel engines aren't the CO threat that gas engines are.

My insurance required a hard wire unit and even specified the manufacture and model number.
And yes when I equalize the batteries with out opening the windows and doors it goes off.