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EcoFlow Backup 48V Solar Calculator

Compute battery Ah and panel watts for EcoFlow Backup usage at 48V with 4.6 peak sun hours and 1-day autonomy.

Sizing Snapshot

Daily Energy

1807 Wh

Battery Bank

51.7 Ah

Solar Array

562 W

Inverter Baseline

1250 W

Appliance	Power	Daily Runtime	Wh/Day
Fridge (60W x 24h)	60 W	24.00 h	1440 Wh
Microwave (1000W x 10m)	1000 W	0.17 h	167 Wh
LED Lights (40W x 5h)	40 W	5.00 h	200 Wh

Portable power station style usage with burst cooking loads.

Brand keyword pages map typical duty-cycle patterns to speed up first-pass sizing decisions.

Validate actual appliance telemetry after install and update sizing margins if runtime differs.

Use the interactive calculator to test alternative voltage and autonomy assumptions quickly.

Use this for planning and shortlist decisions, then validate with measured appliance duty cycles and local irradiance history.

For this load profile, estimated NMC bank sizing is 51.7 Ah at 48V with 1-day autonomy.

The calculator estimates 562 W panel capacity after charge and derate factors.

For the same energy demand, lower voltage systems need more current. That translates into larger Ah requirements and often thicker cabling.