Amp hour rating

[budbon]

I'm setting up a battery monitor. It wants the AH rating on my two 6v batteries. The batteries are labeled "75 amp rating, 120 minutes." Do I indicate 150ah or 240ah? Im confused.

 

[powerscol]

I'm setting up a battery monitor. It wants the AH rating on my two 6v batteries. The batteries are labeled "75 amp rating, 120 minutes." Do I indicate 150ah or 240ah? Im confused.

Usually its the 20 hour rating. What brand and model 6V battery's do you have? Look up the AH rating on the manufacturer web page. Also when setting up your monitor, be sure the batterys are fully charged.

 

[BB&LAB]

With two 6v batteries you will need to connect them in series to create 12v. In so doing the amp rating is not multiplied by 2, rather the amp rating you should use is the rating for one battery.

 

[budbon]

Thanks BB&Lab. I realize just using the rating for ones 6v. My question was or is rated 75 amp for 120 minutes. Would that rating indicate 150 amp for 60 min, half the time?

 

[RobWNY]

What make and model are the batteries?

 

[budbon]

They just say "GC15. 75 Amp Rating, 120 min.

 

[RobWNY]

I believe they are DEKA Flooded batteries. 75 Amp Rating, 120 min. is the reserve capacity. All the information is on this web page. https://www.nationwide-battery.com/deka/gc15.php

 

[powerscol]

I'm setting up a battery monitor. It wants the AH rating on my two 6v batteries. The batteries are labeled "75 amp rating, 120 minutes." Do I indicate 150ah or 240ah? Im confused.

They are Deka GC15 230AH battery You should use the 230AH number in programing you battery monitor
http://www.dekabatteries.com/assets/base/0250ProMasterMulti.pdf