TO KNOW: we advise you to recharge the battery overnight and not to touch your lock until you have reinserted the charged battery. By avoiding handling the product, you preserve the adjustment of the stops.
Remove the battery from its engine block by pushing the small lever under the engine to the left. This will release the battery. Remove the battery and connect it using the USB-C cable supplied. Please note, do not use a fast charging charger (USB Power Delivery). Charging time is approximately 8 hours.
If you encounter a problem after recharging your battery, please redo the adjustment of the stops: How to adjust the stops of Door Keeper?
See also :
How do I know when my battery is low?
Can I go home when the battery is recharged?