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Will the Rich Solar MEGA 100 FLEX work with the BLUETTI Handsfree 1?

Yes. One Rich Solar MEGA 100 FLEX works with the BLUETTI Handsfree 1: about 22.3 V on a 20°F morning against the station's 28 V limit, and about 100 W in full sun. Two panels: works (2 panels in parallel on Solar input), about 140 W.

Verdict

Works

1 x MEGA 100 FLEX into the Handsfree 1 (1 panel on Solar input) stays inside 12 to 28 V and under 8.2 A, even at 20F.

1 x MEGA 100 FLEX1 panel on Solar input
Handsfree 1Solar input
Expected
100W
Voltage at 20F
22.3V
limit 28 V
Current
5.9A
cap 8.2 A
  • BLUETTI: keep the panels under 28 V open-circuit. Two 12 V panels in series are usually too much.
Cables to buy
  • Use the solar charging cable that came with the station (MC4 on the panel side).
Rich Solar MEGA 100 FLEX

100 W, open-circuit 20.4 V, short-circuit 6.1 A, working 17.1 V / 5.9 A. Brand page Panel details

BLUETTI Handsfree 1

Solar input Solar input: 12 to 28 V, 200 W max. Manual Station details

Change the count or temperature

Two panels: every way to wire them

WiringInputVolts at 20FAmpsWattsVerdict
2 panels in parallel on Solar input
The panels can push 11.7A but this input takes 8.2A, so the station caps it. Safe, you just lose some watts.
Solar input22.311.7140Works
2 panels in series on Solar input
Open-circuit voltage 40.8V is above the station's 28V limit. Going over a station's input voltage limit can damage it.
Solar input44.75.90Don't connect

Quick answers

Will the Rich Solar MEGA 100 FLEX work with the BLUETTI Handsfree 1?

Yes. One Rich Solar MEGA 100 FLEX works with the BLUETTI Handsfree 1: about 22.3 V on a 20°F morning against the station's 28 V limit, and about 100 W in full sun. Two panels: works (2 panels in parallel on Solar input), about 140 W.

Can I connect two MEGA 100 FLEX panels to the Handsfree 1?

Yes, 2 panels in parallel on Solar input. That gives about 140 W.

What cable do I need to connect the MEGA 100 FLEX to the Handsfree 1?

Use the solar charging cable that came with the station (MC4 on the panel side).

Is it safe on a cold morning?

Panel voltage rises in the cold. One MEGA 100 FLEX goes from 20.4 V on its label to about 22.3 V at 20°F and 23 V at 0°F. The Handsfree 1 accepts up to 28 V on the Solar input.

Where to buy

$170 at the Rich Solar store, Oct 28, 2026
Buy
$209 at the BLUETTI store, Oct 28, 2026
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Other panels that work with the Handsfree 1

→BLUETTI SP200L Solar Panel, about 200 W with two
→EcoFlow 175W Rigid Solar Panel, about 183 W with two
→BLUETTI SP100L Solar Panel, about 168 W with two
→BLUETTI PV200D, about 167 W with two
→Renogy E.Flex 200W Portable Solar Panel, about 165 W with two

All 33 panels checked against the Handsfree 1

Rules we applied
  • BLUETTI Handsfree 1: solar input 12 to 28 V on the Solar in (Solar input). BLUETTI sets this limit on open-circuit voltage (Voc), so we hold the panels' Voc on your coldest morning to it.
  • Cold raises panel voltage: we add 0.30% per °C below 77F (25°C), a typical figure, since this panel does not publish its own. At 20F one panel's 20.4 V becomes 22.3 V.
  • Current over the 8.2 A cap is safe: the station takes 8.2 A and you get fewer watts. We count only the capped watts.
  • Max 200 W on this input.
Assumptions
  • Cold-morning voltage uses 0.30% per °C, typical for crystalline panels. This panel's own value is not published.
  • Expected watts are the best case in full sun. Real-world midday output is usually 60 to 80% of that.
Sources
From the brand's pageMEGA 100 FLEX label values
Checked Oct 28, 2026