4s battery with Freewing F86 80mm

[Easystik]

Hi, I'm thinking about buying the Freewing F86 80mm. I have many 4S batteries already, and I don't want the plane to go particularly fast, but have enough thrust to take off from grass. Can I safely use a 4s battery with a 6s set up, and this plane in particular? Thanks.

[Evan D]

No. You might be okay with 5S but no way with 4S.

[PikeStaff]

2 of ‘em in series would be plenty good (This is not serious, you understand.)

[Evan D]

Poof. Unless you put in a 8S ESC and then you need to baby the motor.