BNG Trust wrote:
1) Can 4 deep cycle house batteries and a 3000W inverter handle this job?
2) Do I need a "line conditioner" or some other gizmo to protect against low and high voltage spikes?
3) Is there any advantage to adding a separate "Pure Sine Wave" inverter just for the refrigerator?
4) Will a store bought refrigerator handle the vibration and work while I am driving?
0: Consider a new cooling unit rather than an entire new fridge. The Amish Built cooling units normally play to good reviews here in the forums, IN fact, the count is MANY-1 good reviews, one bad one. (Every company no matter how good turns out the occasional lemon,, Read that some where, reverse it true too, No matter how bad, the occasional gold nugget).
1: Depends, 4 GC-2 inseries/parallel gives you about 2.25 KWH of usable power at the 20 hour rate, Less if you suck it faster.. How much does the fridge need?
2: Should not.. at least no more so than for the air conditioner and microwave. Plus a GOOD in-line inverter...... Does that.
3: Yes, but, to be honest, it is not great enough to warrant the cost.. Most inverters have a "Sweet spot" which is a load level at which they are most efficient, Normally this is near full load.. However,, That is the only advantage of a seperate unit.
The flip of this is you would have TWO inverters sucking control power so it might well NOT be an advantage.
There is an advantage to true sine wave however in any case where there are Audio/Video/Radio/Television units nearby.. And in other cases as well.
4: If it survived the semi ride from the factory to the store. It will survive riding in your RV....... Unless, that is.. Yours is the next RV to be featured in "BAD WRECK ON..." and I'd not wish to see that happen.. Even then it MIGHT survive.
