Four hundred watts of solar is the most popular size for RVs, vans and backup power stations, producing around 1.3 to 1.8 kWh on a sunny day. In stock from $799, this range runs from a Rich Solar 400 watt charging kit with a 40 Amp MPPT controller to Jackery, Anker SOLIX and Mango Power solar generators that ship with two 200W panels. Choose the charging kit if you already have a 12V battery bank, or a solar generator if you want storage and outlets in one box. Portable folding panels are easy to aim and pack away, while rigid panels suit a permanent roof mount. Check each station's solar input limit before adding more panels later.
Also see: 200 Watt Solar Panel Kits · 800 Watt Solar Panel Kits · Solar Power Kits
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ECO100 $100 off $1,500+
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ECO100 $100 off $1,500+
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ECO100 $100 off $1,500+
In stock · ships in 1-4 days
ECO50 $50 off at checkout
In stock · ships in 1-4 days
In stock · ships in 1-4 days
ECO100 $100 off $1,500+
In stock · ships in 1-4 days
In stock · ships in 1-4 days
A 400W array makes about 1.3-1.8 kWh a day in good sun. That covers a 12V fridge, lights, fans, phones and laptops in an RV or van, or tops up a 1-3 kWh power station between outages.
Compare with 200 watt solar panel kits and 800 watt solar panel kits, or use the solar kit calculator.
