Perhaps you can check Seestar S50 battery and charge it before trying to turn it on. If Seestar S50 is still unable to startup, please leave a message or contact support at https://www.seestar.com/.

Seestar S50 supports USB BC1.2 of adapters. Type-C cable which is the normal charging mode, supports 5V 2A; The maximum support is 12V 3A with the fast charge cable which is the fast charging mode.

Support. Please note that, it is getting less and less charging when the temperature of battery is above 45℃ considering safety. For battery life, the charging stops when the temperature of battery is below 0℃.

Seestar S50 battery has a rated capacity of 6000mAh, and the battery life verified by ZWO laboratory is about 6 hours.

Tips: in actual use, the battery life performance will be different due to the difference in ambient temperature, operation process and shooting target, especially after the fog removal function is turned on, the battery life will be significantly shortened.

It takes about 4 hours to fully charge in normal charging mode which is 5V 2A.

It takes about 2 hours to fully charge in fast charging mode which is 12V 3A.

When you plug in the cable, Seestar S50's LED should be flashing a red color every second.

It will take two to four hours for the battery to be full. You can check the battery level when you're connected to Seestar S50 on home page.

Seestar S50 is equipped with a lithium battery that can be charged and discharged no less than 500 times. If you need to replace the battery, please purchase at https://www.seestar.com/ and replace according to official instructions.

Seestar S50 supports physical buttons to turn on and off. In operation, press and hold the power button for 2s to shut down normally, or for 6s to forced shutdown.