Size your solar + battery
system in 60 seconds
Real sun-hours and utility rates for your ZIP. See your system size, payback period, and the exact BigBattery kit that fits your home.
2 Your usage & power needs
Tell us how you use power and we'll size the system around it.
How many days of power do you need?
Days of stored energy to ride out cloudy stretches with no sun.
Days of stored energy to ride out cloudy stretches with no sun.
Last step before your results
Your full system sizing and the kit that matches it come up on the next screen. Want someone to walk you through it? Book a free 30-minute call below, no phone number needed.
Building your custom quote
Crunching panels, batteries, and savings for your home…
Your recommended BigBattery kits
How a recommended kit works through your day
A 9.2 kW solar array in your area · ~12,500 kWh per year
Recommended System: Estimated Solar Production and Energy Use
Based on your sized array and household consumption. Y-axis uses real kW values; production curve uses NREL sun-hour data and a 77% system efficiency factor.
💰 Your BigBattery cost
BigBattery ships the ESS (battery + inverter). Solar panels and licensed-electrician installation are sourced separately through your installer and aren't included above.
— reviews · — average
BigBattery customers across all 50 states
Common questions
Talk to a BigBattery engineer
Free 15-min sizing call · Mon–Fri 8am–5pm PT · No sales pressure
How we sized your system
1 What does your rig run?
Pick your rig type to pre-load typical appliances, then add or remove anything. Wattages are rough starting points, so tweak the ≈ W and hrs/day to match your gear. We'll total your peak draw and daily energy.
↔️ Slide-out rooms are included. Trailers and motorhomes come pre-checked with a slide-out allowance (~350 W). The motor only runs for seconds per cycle, so it adds very little daily energy. Adjust the watts and time, or switch it off if your rig has none.
2 How will you charge your batteries?
Most battery + inverter setups recharge from shore power or a generator. Solar is optional. Tell us your plan so we size the system, and your panel array if you want one, correctly.
3 Pick your system voltage
HUSKY 2 comes in 12V, 24V, and 48V. Higher voltage means lower current and thinner cables for the same power, but most native RV loads are 12V. Here's the trade-off for your 0W peak draw.
Last step before your results
Your kit recommendation, load summary and wiring notes come up on the next screen. Want someone to walk you through them? Book a free 30-minute call below — no phone number needed.
Building your RV system
Sizing your HUSKY 2 bank, matching a Victron inverter, and drawing your wiring…
A 12V HUSKY 2 + Victron system for your rig.
🔋 Your recommended RV kit
⚡ Charging & recharge plan
🔌 Battery wiring diagram
Your kit recommendation is highlighted. Toggle battery count to see how each bank is wired. All HUSKY 2 modules wire in parallel at your 12V system voltage.
Talk to a BigBattery RV specialist
Free sizing review · Mon–Fri 8am–5pm PT · No sales pressure
