Price of amp hour based on generator recharge.

If you are parked in the trees as you assumed solar won't help much, at least installed on the roof.

Now you could go with a portable panel system that you set up remote from the coach in the sun. Harbor Freight has one example of this in a 3 panel system with legs to stand them up angled toward the sun.

pianotuna wrote:
Here is a chart:



"The chart above shows the amount of time it took a PD9155 (55-amp) converter set to three different output voltages to recharge a 125 AH (Amp Hour) battery after it was fully discharged to 10.5-volts.

14.4-VOLTS (Boost Mode) – Returned the battery to 90% of full charge in approximately 3-hours. The battery reached full charge in approximately 11 hours.

13.6-VOLTS (Normal Mode) – Required 40-hours to return the battery to 90% of full charge and 78-hours to reach full charge.

13.2-VOLTS (Storage Mode) – Required 60-hours to return the battery to 90% of full charge and 100-hours to reach full charge."

It is far better to use solar imho.

Awesome. That is exactly what I was looking for. So Progressive's claim of charging a 125 AH battery to 90% in 2-3 hours was more than likely from a 0% state.

Too bad that graph isn't a little more detailed. I would love to see the different charge times for different depletion percentages.

However, at 14.4 the line does look somewhat linear at most points. Maybe past 10%?


Again, thank you. That is exactly what I was after.





But as far as solar, I would really like to go that route, but I will be parking in the shade as much as possible, thus I am not sure how effective a solar panel will be being in the woods, shaded by trees.

The final summation you're after is really a calculation of more than one equation.

First--Anticipated draw in AH of the devices you want to power (lights, furnace, fridge, etc.) Downloadable calculator

Second--Type and size of battery storage capacity. The amount of capacity you have will effect how, how much, and when you need to charge the bank back to as close to 100% as you can for best battery longevity.

Third---Type and output of the battery charging devices. Solar is the most efficient, IMO but the capitalization is higher than grid based chargers. The sun also has to shine. If using just grid based charging, amount of output from the charger defines how long it needs to run to get to an acceptable SOC. Using both solar and grid places a variable into this part of the efficiency outlook, as will use of a generator which, unto itself has it's own efficiency (output for amount of gas used).

If you dance with these three wolves, you'll get an approximation of costs involved.

Here is a chart:



"The chart above shows the amount of time it took a PD9155 (55-amp) converter set to three different output voltages to recharge a 125 AH (Amp Hour) battery after it was fully discharged to 10.5-volts.

14.4-VOLTS (Boost Mode) – Returned the battery to 90% of full charge in approximately 3-hours. The battery reached full charge in approximately 11 hours.

13.6-VOLTS (Normal Mode) – Required 40-hours to return the battery to 90% of full charge and 78-hours to reach full charge.

13.2-VOLTS (Storage Mode) – Required 60-hours to return the battery to 90% of full charge and 100-hours to reach full charge."

It is far better to use solar imho.