Daymak Arrow trouble

Andre 51

New Member
Region
Canada
Just bought daymak arrow, originally came with lead acid batteries, 72 volt, I asked dealer to switch to 72 volt lithium, I get bike delivered, I turn on, ride for 2 mins,bike shuts off, all power, I plug into charger, charge 2 mins, it's full and turns on, same thing happens every time.i try to ride.., any help please
 
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