Skibane wrote:
The average RVer already has a sizeable battery bank in his RV, along with several different ways of recharging it.
Why would he/she not want to use it?
I recently bought a nicely portable Bluetti EB55 (537 Wh) 16 lb., LiFeO4 battery technology "solar generator" at Black Friday pricing ($100 off) for use when we are dry camping in our 24 ft. Class C. It's LiFeO4 built-in batteries supposedly are good for 2500 or more recharge cycles (this cycle life is way beyond the older technology plain old Lithium-ion technology batteries that are in other solar generators, cell phones, etc.).
I DID NOT buy any solar panels to go with this Bluetti unit, so I have to charge it (our RV has no solar panels) using one of four other ways when drycamping - charge it via 12V DC outlets in the coach fed directly by the coach's two 115 AH AGM batteries, or charge it via 12V DC outlets in the coach fed indirectly by the RV's built-in fairly quiet Onan generator, or charge it via 120V AC outlets in the coach fed directly by hookups or the Onan generator. (I also carry along in our RV an ultra-quiet Honda 650 watt portable generator - that adds to the Bluett's recharging mix when drycamping.)
Here's why I bought it: 1) To the power a CPAP machine way in the back corner bed when drycamping, since there are no 12V DC receptacles back there and my RV does not have an inverter to power it's 120V AC outlets (these are back by the rear bed) when dry camping without a generator being used (the CPAP machine can be powered via 12V DC or 120V AC) and, 2) we can use the Bluetti to conveniently power electric 12V DC or 120V AC throw-blankets over us when outside sitting around our propane firepit on chilly evenings!