- Shore power
- The 120-volt power you plug into at a campground pedestal. The 2019 Bounder gas coaches use a 30-amp cord.
- House battery
- The bank that runs your lights, pump, and fans. It's separate from the chassis battery that starts the engine.
- Amp-hour (Ah)
- How much a battery holds at its own voltage. Multiply by the voltage to compare banks: 300Ah at 12.8 volts is 3,840 Wh.
- Watt-hour (Wh)
- Volts times amp-hours. The Megawatt calculators count a day of use in watt-hours, because amps alone don't tell you much.
- Peak sun hours
- How many hours of full-strength sun a day adds up to. The Megawatt solar calculator plans on 4 unless you pick 3 or 5.5.
- Lithium (LiFePO4)
- Lithium iron phosphate, the battery chemistry in every pack the Megawatt calculators link. Lighter than lead-acid, with more of the rated capacity usable.
- MPPT controller
- A solar charge controller that tracks the panels' best voltage as the light changes. It sits between the roof and the battery.
- Boondocking
- Camping with no hookups: no shore power, no water line, no sewer. Your batteries, tanks, and solar are all you've got.
- GCWR
- Gross combined weight rating: the most your coach and anything it tows can weigh together. Find it on the coach's weight label or in the owner's manual.
- Payload
- What you can still add before you hit the coach's GVWR (gross vehicle weight rating), after people, cargo, water, and propane. The payload calculator does that subtraction.