12v power when plugged in
So we have a new Grand Design trlr. On this trlr, if the battery is at 75% on the panel and I plug it into our truck, the voltage doesn't change. Even after driving all day the voltage will not have ...
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This chart shows the DC VOLTAGE verses STATE OF CHARGE of your batteries.
It is not absolute but very useful to get you in the ball park.
The really sure method is to Measure the Specific Gravity of each cell using a HYDROMETER.
When we are camping off the batteries we never let our batteries drop below the 50% charge state over night. This is represented by a 12.0VDC DC VOLTS reading on my meter panel. Dropping the batteries below their 50% charge state will do harm to your battery performance and will eventually have to replace them.
Roy Ken
It is not absolute but very useful to get you in the ball park.
The really sure method is to Measure the Specific Gravity of each cell using a HYDROMETER.
When we are camping off the batteries we never let our batteries drop below the 50% charge state over night. This is represented by a 12.0VDC DC VOLTS reading on my meter panel. Dropping the batteries below their 50% charge state will do harm to your battery performance and will eventually have to replace them.
Roy Ken
