Will it blow?

[badge214]

So...I'll let someone smart figure this out for me.

This is the battery that they installed in the new A-Frame.

Dual purpose provides both starting and accessory power
Deep cycle capacity 65AH
Starting power 550 CCA
Quick connect DT, SAE/M8 Stud, SAE/M8 Threaded Post, WNT terminals
Dual Purpose (Starting/Cycling) BCI Group 24M Marine and Boat battery

The fan that I have to run helping cool the refrigerator draws .25 amps
with the other small vampire draws how long do you think this will last?

thanks

[bikendan]

Well, that's a cheaper dual purpose marine battery, not a true deep cycle battery.

If you run the furnace during the night, it might make to the morning if you have no shore power.

[Cypressloser]

The fan is fine, the battery not so much.

The fan draws .25 Amp per hour that means ~6 Amp per day. The battery has a nominal AH rating of 65 of which is less than half available from this type of hybrid battery. When it dies buy yourself a good 12 Volt "true" deep cycle battery.
To keep it simple you could call Volt the type of fuel and Amp the amount of fuel.

If the battery only had to supply power for this fan it could run for a couple days but since the fridge, CO/LPG Alarm and other parasitic loads are also connected I suspect that your battery will be toast after a day.

[Flybob]

Your other parasitic draws are probably close to that of the fan. So a quick estimate is 3.5 day until you start drawing the battery too low.

[badge214]

98% of the time camping with shore power. Usually in the summer. The only time ww have no power is at a week long airshow in July.

Our refrigerator in our last TT could not keep up during the day parked out in the field. Have a 3000 watt Honda when we get back to the camper. I would guess that the helper fan would be alright for the day?

[badge214]

next year the upgade to 6V batteries and solar panel.

[Scrapper]

If I remember right computer fans are rated at FLA, not what they draw once they are at full speed. Which may be in the order of .15A. They are PM motors which are more efficient.