How to attach the BT controller correctly?-Lvbu ebike kit,electric bicycle conversion kit controller motor battery.

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How to attach the KD/BT series (Saddle Battery Kit) controller correctly?

The installation requirements of the KD/BT (Saddle Bag Battery Ebike Kit) Series controller are as follows:

The controller should be placed horizontally, the tilt angle should be within +/- 8 degrees, it will be perfect if you can put it under the bottom bracket;
The side of the controller box where the wires come out must be towards the rear wheel;
The QR code on the controller must be towards the ground when the bike stands on the ground.