Product Information:
The SKSM is an external module for 3D printers that features the ability to save data in the event of a power outage. It is suitable for 3D printers that use DC12-24V power supplies and are equipped with Klipper firmware, such as the Ender 3.
Feature Highlights:
1. Smart Power Outage Detection: It has a high-sensitivity MCU chip that can quickly detect power losses.
2. Backup Power: Equipped with two 2.7V 20F supercapacitors, it ensures your printer has enough power to save your work during an outage.
3.Safe Power Input: Comes with reverse polarity protection to safeguard against wrong connections, thus protecting your printer's circuit board.
4 Compact Design: Its small size makes installation simple and hassle-free.
5.Power Output: Offers a Type-C output with +5V/2A power.
6.Main Function: Its primary role is to enable saving your print data during power outages.
Specifications:
1.Size: 40.8mm x 32.9mm
2.Input Power: DC7-24V
3.Outputs: BAT +5V/2A
4.Outputs: USB +5V/2A
5.Charging Time: 100 seconds (starting from power on)
6. Battery Output Power: 5W with a discharge time of 13 seconds (please be aware of the load power)
7.Compatibility: 3D printers using Klipper firmware and powered by DC12-24V (such as the Ender 3)
Precautions：
1. The module detects when the DC12-24V power supply is cut off and can maintain a 5V output for up to 15 seconds. The load capacity during this time is 5V-1A.
2. When using the BIGTREETECH Pi 2 with the SKSM, please use a 12V-24V power supply. Do not use a TYPE-C 5V power supply. (To ensure the normal operation of the module, the 5V output voltage inside the SKSM board must not be lower than 4.9V. Otherwise, the SKSM will draw power from internal boosting, and the capacitor will remain in a charging state, causing the module to continue heating up.)
3. The reset pin on the SKSM can be connected to a master computer with power reset capabilities, such as the BIGTREETECH Pi 2, Raspberry-Pi 4B. (If the reset wire is not connected, and the power drops and then is restored quickly, the host computer will still enter standby and will not restart automatically; a manual restart of the host computer is required).