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.
systems shipped
battery warranty
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2 How accurate do you want to be?
The more you tell us, the more precise your quote. Bill upload is unbeatable — we use your real monthly kWh.
3 How much backup do you need?
Battery capacity is sized around how long you want to ride out an outage.
Building your custom quote
Crunching panels, batteries, and savings for your home…
A 28.6 kWh BigBattery ESS, paired with 9.2 kW of solar.
Your recommended BigBattery kits
Best Value – Ideal for starting small, gaining energy independence now, and expanding storage capacity over time as your energy needs grow.
Recommended – The best match for your current energy usage and system sizing requirements.
Premium – Our top-tier ESS solution featuring the latest technology and highest-performance hardware for customers who want a no-compromise setup.
How a 28.6 kWh MeterHome 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 Consumption
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.
Get your full quote PDF + talk to a BigBattery expert
We'll email your complete spec, financing breakdown, and panel/battery BOM. A US-based engineer will follow up if you want help, no high-pressure sales.
— 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
1 What does your rig run?
Pick your rig type to pre-load typical appliances, then add or remove anything. Wattages are approximate starting points — 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/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 any) 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.
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.
Get your RV system spec + talk to a BigBattery specialist
We'll email your kit recommendation, load summary, and wiring notes. A US-based engineer will follow up if you want help — no high-pressure sales.
Talk to a BigBattery RV specialist
Free sizing review · Mon–Fri 8am–5pm PT · No sales pressure