Bank 3

[Jfrano]

So Bank 3, seems low 12.4v. I’m on shore power, shouldn’t that be charging all the banks?

 

[Dcsqatar]

On my factory fresh 29, all three banks show 13.4v on shore (and solar) power.

 

[trailertrawlerkismet]

Our R29S also show 13.4 when charging on shore power. Check the battery terminals n ground to make sure they are clean n tight. If after that there is no change you might check with the factory as the battery may have some warranty.

Jim F

 

[knotflying]

Bank three is thruster, correct? Check all your connections at battery, switches and ACR's. Make sure ACR's are functioning and make sure any fuses between charger and connections are good. Also make sure the fuse going to the meter is not corroded on the contacts. I have seen it where it builds up corrosion and hence resistance and meter shows low. Try putting a multimeter directly an the battery terminal and see if the reading on the boat meter matches what is on the multi.

 

[Jfrano]

12.2 V at the battery , so meter was accurate.

Trying to figure out date code on the Interstate Battery
9C01CT2C

Any thoughts?

Thanks

 

[knotflying]

Something does not seem right. If you are on shore power even a battery in a bad state should show higher voltage. It would be once disconnected from a charge that it will lose it quickly. Also the #3 is usually the thruster. even if it was not getting a charge it should be holding it since you are not using it. So you may have two things going on. I would first check that the ACR's are working properly and that all connections to the battery and the thruster switch as well as the ACR's are in good order as well as connections from the charger and any fuses coming from the charger. If they are okay I would then charge the #3 battery independent of the system and let it rest. Then check the voltage when not connected to anything or better yet, do a load test. This will confirm if the battery is good or bad. If it is good then you need to search for a parasitic draw.

 

[Connerkip]

I pulled this off the internet.

A 4 or 5-digit shipping date code is engraved into the cover of each Interstate battery at the time the battery is shipped from the manufacturing plant. This code can only be seen when looking down on the top of the battery. The code is not on the label on the battery and it is not on the rim around the cover. The code is usually near one of the corners of the battery. This code tells when the battery was shipped from the factory to the local Interstate Battery wholesale distributor. The additional digits tell where the battery was made.

The first digit from the left side is a letter which stands for the month of the year. A = January; B = February; C = March, etc. The second digit from the left is the year that the battery was shipped from the factory. 4 = 2004, 5 = 2005, 6 = 2006, 7 = 2007, 8 = 2008, 9 = 2009, 0 = 2010, etc.

 

[Jfrano]

The ACR is fine, not tripped. Is there a fuse for that somewhere?

The positive connection was loose, tightened up. Hasn’t made a difference .

 

[stwendl]

Check if there is a fuse tripped between charger output and battery. Measure the charger output at the charger terminal for that bank and at the wire connected to the battery after removing the charge connection to the battery(assuming you have a three bank charger) if there is just a single bank charger than the charging relies on the ACRs to provide the connection for charging. There have been instances where the ground connection on the acr was not properly made or forgotten. Measuring between the acr fat connections and the single ground terminal should show each battery voltage this acr combines. The acr has 3 small terminals. One for ground one for inhibit and one for a remote indicator