Megawatt RV
Plan my solar

Field guides

Power guides you can read by the campfire

Six short reads on solar, batteries, and inverters. Every number comes from the Megawatt calculators or the manufacturer's own manual, and the gear links are the ones James already trusts.

Solar panels on the roof of a white motorhome at golden hour, pine trees behind it.
Start hereSolar2 min read

Count your watt-hours before you climb the ladder. Here's how the Megawatt math turns a normal day into one of four solar packs.

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More from the library

Pick the problem you're having

A coffee maker brewing on an RV counter beside a steaming camp mug, pine trees in the window.
Inverters2 min read

Sizing an inverter, starting with the coffee maker

Your inverter cares about the watts running at the same moment, not what you use all day. How to add them up, pad them, and spot the surge problem.

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A small travel trailer glowing at dusk by a lake, string lights on the awning and a campfire in front.
Batteries2 min read

Lithium vs AGM, minus the hype

Two batteries can wear the same 100Ah sticker and give you very different nights. What the Megawatt battery math assumes, and what to read before you swap.

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A white Class A motorhome parked alone in the desert at sunset, solar panels on the roof and a small campfire in front.
Boondocking2 min read

Boondocking power that lasts the whole trip

The dry-camping habits Fleetwood prints in its owner's manual, plus the battery and solar math behind them.

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A large Class A motorhome parked among tall pine trees with its awning out and solar panels on the roof.
Fleetwood2 min read

Adding solar to a Fleetwood, step by step

Get the right owner's manual from Fleetwood, measure the roof, and size the system from your own loads. No made-up roof ratings.

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A motorhome parked on a concrete pad on a frosty autumn morning with a storage bay door open.
Batteries2 min read

RV battery care, straight from the Fleetwood manual

House vs chassis, the cutoff switch, and how to keep a stored coach from freezing its batteries over the winter.

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