ASI1600mc-cool draining power source??

kevin.mcde

I use the Celestron 12V Power Tank to power my AVX mount. It has worked great and I can get multiple nights of imaging. Now that I have the ASI1600MC-cool I can only get about 2 hours of imaging before the tank needs recharge. I'm using SharpCap for image capture and set the temperature at -20. Is this too cold and causing the power source to be depleted faster?

Thanks

Kevin

s3igell

SharpCap will tell you the Cooling Power Percentage necessary to reach your -20*C Setpoint. If you are running the Cooling at 100%, then you ARE setting yourself for a Large Power Draw(12V @ 2A).

Remember that the DeltaT (Cooling Ability) of the ASI1600's TEC is rated as -40*C Relative Degrees, so unless the Ambient Temp was less than 20*C while Imaging then the Cooler would be running at a perpetual 100%. That level is definitely a Power Drain.

Make sure that you set the Cooling Setpoint to a realistic Number, so that the Cooler isn't running at more than 60-70% after the Initial "Cool-Down". Then your Power Drain will be MUCH Less.

kevin.mcde

s3igell wrote:
SharpCap will tell you the Cooling Power Percentage necessary to reach your -20*C Setpoint. If you are running the Cooling at 100%, then you ARE setting yourself for a Large Power Draw(12V @ 2A).

Remember that the DeltaT (Cooling Ability) of the ASI1600's TEC is rated as -40*C Relative Degrees, so unless the Ambient Temp was less than 20*C while Imaging then the Cooler would be running at a perpetual 100%. That level is definitely a Power Drain.

Make sure that you set the Cooling Setpoint to a realistic Number, so that the Cooler isn't running at more than 60-70% after the Initial "Cool-Down". Then your Power Drain will be MUCH Less.

Thanks...working on setting this up now for practice. Appreciate the advice.