My adding inverter plans - Pls review and comment - Event Date: 29 Mar 2018

+1 to what furpod said. There are some differences, depending on whether the battery is wet, gel, or AGM. The wet can do initially higher current (usually), and some AGM batteries can be drawn down to ~~ 40% or so. But the voltage is not linear with respect to SOC (State of Charge), and the higher you draw from them, the more it will impact the life. IOW, you could draw at 500 milliamps, and get 110% of the watt-hours, or you can draw at 120 amps and only get 75% of the watt-hours. High amps=short life.

If cost is acceptable, ditch the lead-acid batteries and go with lithium iron phosphate batteries. Prices are not quite as astronomical as they used to be and LiFePo4 batteries can be drained deeper and faster than Pb-acid batteries without damaging them. That might make all the difference in whether this is a success or failure.

I am curious though to see if the OP can make it work. I have a couple of small inverters--nothing big enough to even think of running the microwave.

Originally posted by Blender Bob Have new 2018 Rpod 178 with 2 deep cycle batteries (~150-180amps) and 120W solar charger. Goal is to dry camp and have 15min microwave per day, TV, and run my blender. (Nothing beats a frozen margarita after long day hiking in the sun!)  No A/C or 110 Hot water, converter usage. I plan to added a Powerjack 12000W peak 3000W LF Pure Sine Wave Power Inverter. By opening Rpod 110 circuit breakers, I can control what pulls 110v power in the RV. With proper 12v cables, I plan to have the inverter in the front storage area and use a 20a to 30a plug and existing 30amp cable to bring inverter power to the R-pod external plug. Inverter is on only when needed and storage doors are open to allow air for cooling. Thoughts? Comments? Thanks!   URL to Inverter:  https://www.amazon.com/dp/B071RV7DWT/?coliid=I1J831L6YIO9L5&colid=NZFFQLHCHF5H&psc=0&ref_=lv_ov_lig_dp_it

Originally posted by furpod Originally posted by Keith-N-Dar The OP needs empirical data on this issue.  With many people the need is to try and learn from the results.  He is not likely to ham himself with his test, so at this point the discussion is moot.   Well.. at the proposed draw rates, there is in fact a fair danger of fire.. but yeah, in the long run, many people have a need to do things.. me included..

I am sure the OP knows that the wiring from the battery to the inverter needs to be ap[ropriately fused to prevent the wires from burning.  If not he should forget the entire project.

Thanks Voisj for your story and suggestions. In time, I believe more battery capability solves a lot of problems. And, managing demand is equally important. On the Colorado plateau, no hair dryer needed. With desert air, you can dry off from a shower with a bandana and your hair is dry before the first beer is gone. Cheers, B.Bob