Quick answer
Start with the 1,200–2,000Wh class if your goal is fridge plus small essentials overnight. Look at expandable 2,000Wh+ systems only after confirming freight, warranty, and expansion-battery shipment to Hawaiʻi.
| Class | Best fit | Hawaiʻi caution |
|---|---|---|
| 700–1,000Wh | Router, phones, lights, short outages | Often too small for a refrigerator day |
| 1,200–2,000Wh | Fridge plus essentials overnight | Best first comparison class |
| 2,000Wh+ expandable | Longer outages and more loads | Shipping/freight and warranty get harder |
| Solar bundles | Daytime recharge | Panels may ship differently than batteries |
Hawaiʻi checkout test
- Put the exact unit and expansion batteries in cart.
- Enter a real Hawaiʻi ZIP code before comparing price.
- Check if the seller blocks batteries, panels, or both.
- Save the return/warranty language before buying.
- Do not count marketplace “ships free” banners until the final checkout screen agrees.
Evidence before a product record
No exact-SKU product record is published until the seller, destination scope, evidence date, components, returns, and warranty path are documented.