Jackery F7 - decision flow
F7 is the DC charging module (PV) fault. Jackery's own F7 articles treat sunlight as the first suspect, not the hardware.
F7 during solar charge
Is the panel in full, direct sun?
Clear or cloudy - shaded - charging through glass?
LOW LIGHT / SHADED
FULL SUN, STILL FAULTS
This is expected behaviour
Weak light drops the panel voltage
below what the charger needs, which
is what raises F7.
Charging resumes by itself once
sunlight is adequate. Move the panel
outdoors, unobstructed.
Check the array voltage
Measure open-circuit voltage (Voc)
at the panel end.
The manual states a 60 V maximum
DC input. Too many panels in series
exceeds it on a cold morning.
Still faulting with a healthy array?
Then treat it as a one-off fault
Reset: POWER + USB for 5 s
Pro series use DISPLAY + USB for 10 s (display shows 8888)
Do not exceed 60 V
on the DC input