21" mower, batteries are ok (tried two different ones), the mower can run without any issue if i don't install the blade, no strange noise or anything and spins for minutes until I stop. As soon as i install the blade, it can only run 2s then orange blink and shuts down. The blade only rotates a half turn I think if i move it by hand.
I have had the mower for a year, never had any issue, even last time I used it.
Anybody faced a similar issue?