I am thinking of the correct charging voltage for a 12.6 V battery. 

My reading, and what I have used for years, is 14.4 V...for charging.

As I remember it, "float" voltage is 13.6:
V.

Double those for 2 series-connected batteries: thus 28.8 for charging, 27.2 for float.

I got the above data from a battery-manfacturer's website in their support section.

I also remember reading some time ago that for most efficient operation of dynamotors, 32 V is "good" but have never tried that myself...yet.

Ken W7EKB



Sent via the Samsung Galaxy S21 5G, an AT&T 5G smartphone


-------- Original message --------
From: Charles via ARC5 <[email protected]>
Date: 12/28/22 12:55 (GMT-08:00)
To: [email protected]
Subject: Re: [ARC5] High current 28VDC power supply?

Isn't military power spec 24-32 VDC (compatible with "24 volt" vehicle
systems)? So why would you need exactly 28.8 VDC?


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