Power Station Solar Input Voltage: MPPT Range and Panel Compatibility

Volume I  ·  May 2026  ·  214 words

The solar input on a portable power station accepts a specific voltage range — typically 11-60V or 12-145V depending on the model — and connecting panels that exceed this range can damage the charge controller. The EcoFlow Delta 2 accepts 11-60V DC at up to 15A (500W max). The Bluetti AC200L accepts 12-145V at up to 15A (1,200W max). The wider voltage range on the Bluetti allows series connection of residential panels (Voc approximately 40-50V per panel) — two or three panels in series — while the Delta 2's 60V limit restricts series configurations to a single residential panel or parallel-connected portable panels. The open-circuit voltage (Voc) of a solar panel is maximum in cold weather — a panel rated at 45V Voc at 25C may produce 52V at -10C, potentially exceeding a 55V input limit. Always add a 15-20% cold-temperature margin: the panel array's temperature-corrected Voc must not exceed the power station's maximum solar input voltage. Exceeding this limit can permanently damage the MPPT charge controller.