aventon SINCH User Manual page 15

4.To fold the frame, pull the metal safety lock towards to front of the bike. While pulling the safety lock,
pull the Latch outwards. When the latch has been released, fold the bike.
Tip: While holding the front brake, press your thigh aginst the hinge to slightly unfold the bike and walk
the rear of the bike forward.
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How to take out battery?
After folding the bike, insert the key into battery, turn the key and battery can be taken out.
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