On 1/8/2017 2:59 AM, whit3rd wrote:
On Saturday, January 7, 2017 at 8:51:51 AM UTC-8, wrote:
On Sat, 7 Jan 2017 16:21:42 +0000 (UTC), John McCoy
wrote:

"Safe" is considered to be anything less than 52V. There was once
talk about the automotive industry moving to a 48V battery. The
reason for 48V was that it was just below the "safe" limit. Of course
it never happened because it would have caused more problems than it
solved.

At full charging rate, the terminals would be well over 52V; what I remember, the
auto buzz was about '42V', which is a 36V battery and allowance for
overvoltage during heavy charging.

That is pretty common with any battery. 12 volt batteries, when fully
charged, have about 13.2 volts. In the industry it is called a surface
charge. That extra 1.2 volts dissipates pretty quickly after initial
use. Basically the cells in an automotive type battery can have 2.2
volts with a surface charge.


Now with the new lithium batteries I am clueless as to how much more
voltage they can carry.