S50 using in very cold temps & with internal battery removed and USB-C powered

cengell

Hello ZWO, I have an S50 on order and live in cold temps -10 below 0 to 32 degrees F. Understand about the S50 battery will not recharge due to too cold to charge a Lithium battery, so I am thinking of removing the S50 battery and then plugging in a large battery pack that can supply a USB-C QC 3.0 18 watts or a USB-C PD and 45 watts of power from a battery that's warm inside the house.

I would like to know will having the S50 battery removed and then plugged in my larger and warmer battery unit cause any harm without the S50 built in battery pack removed?

I would not think so as the S50 runs on a 5 volt voltage and the USB-C input can handle 12v 2 amps correct?

Why I am asking so battery devices MUST have the internal battery pack connected at all times, but in this cold the battery & S50 will stop working and if I plug in a USB-C 12V charger the battery will not get recharged due to Lithium battery that cold damages the cells, but will the S50 still keep working and with an errors?
I wished it had a 12v AC adapter connector, so I could remove the 3.7v 6 AH battery pack and power it up externally.

Thank you
Christopher

Support@Seestar

I want to make one thing clear to you, we cannot remove the battery. You can connect an external power supply to use the S50, but you need to keep the battery. Using the S50 while charging will not cause damage to the S50 nor the battery, but it may reduce the life of the battery. This is because lithium batteries can be charged and discharged about 500 times. Just due to the characteristics of Li-ion battery, S50 will stop charging in low temperature environment.S50 support charger support 5V 2A slow charging and 12V fast charging, but you can't remove the battery. I hope you understand.

curtismacc

The battery used in the Seestar has a thermistor attached, i.e. temperature sensor, to report back to the software inside the Seestar when the temp drops too low or is too high for charging, 0C - 40C. Apparently, the way the software is designed, it needs to see the signal from the thermistor in order to verify safe operation. So if it is removed, the Seestar does not work as Support just mentioned.