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Batteries discharge diagrams

Batteries discharge diagrams

Batteries discharge diagrams

(OP)
Hy. I am involved in electric design for naval industry. For Lloyd's Register of Shipping I have to show discharge courbes for a specific curent in a determined time. I have searched the net but I cannot find anything.
 For example I have I=60A, U=24VDC, t=6h. The voltage must not drop below 88% after discharge time. I have coosed 400Ah battery group.
 Anyone have some information?

RE: Batteries discharge diagrams

You may have to do a discharge test to determine the performance of the battery bank.  Have you consulted the battery manufacturer?  They should have information on the battery performance at a constant current for a specific length of time.  When the battery bank was specified, any specific discharge requirements should have been given.  IEEE 450 has battery capacity test information.

RE: Batteries discharge diagrams

(OP)
Making a discharge test is out of discussion. Lloyd's will never accept that kind of test made by me. I will try to contact a battery manufacturer but I thing I will get no aswer due to the fact that the batteries are yard delivery.

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