This is an excerpt from the Xantrex inverter/charger manual:
"CAUTION: Risk of damage
to DC load equipment
Equalization voltage may be as high as 15
.8 volts DC. Disconnect sensitive loads
from the battery before equalizing
Operating in Equalization Mode
Follow the battery manufacturer’s re
commendations for equalizing your
batteries. As a guide, a heavily used flooded battery may need to be
equalized once a month, and a battery in light service may only need to be
equalized every two to four months.
Measure the specific gravity (S.G.)
of each cell using a hydrometer. For
fully charged lead-acid batteries, th
e reading should be approximately
1.265. Low specific gravity after char
ging or a 0.25 difference from cell
to cell indicates the need for equalization"
This is a excerpt from green-charger.com:
What Is the Maximum Safe Voltage for a 12V Battery?
Charging at too low a voltage generally yields poor results, but it's usually safe to charge a 12V battery at a voltage somewhat higher than it delivers. However, excessively high voltages may yield harmful consequences.
According to Operating Technical Electronics, it's ordinarily safe to charge a 12-volt (12V) lead-acid battery at a maximum of 13.8V. It's also permissible to charge it at up to 14.4V for no more than eight hours."
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"