Home backup under ~2 kWh
Portable stations for essentials — not whole-home backup. Under ~2 kWh nameplate suits router/lights/devices; fridge autonomy is limited.
WattNeeds defaults: inverter efficiency η=0.90, DoD=0.90, buffer=0.15.
One-liner: nameplateWh = (whPerDay × days × 1.15) / (0.90 × 0.90).
Always re-check continuous watts and surge against the station inverter.
- ~500–1000 Wh: communications + lighting + phones for many hours
- ~1500–2000 Wh: stretch essentials overnight; selective fridge runtime
Prefer LiFePO₄ for stationary outage duty (cycle life / thermal calm) when choosing among brand classes.
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