Am I asking to much from 2x T105's?
I posted a month or so ago about my new solar install, and some issues I was having with the low voltage alarm on my Xantrek 2000W Prowatt while running my coffee maker (Tassimo). I was able to check...
Forum Discussion
Hi rjxj,
My coffee pot draws a scant 400 watts and does so for 7 minutes--so it would more or less at solar noon run directly from the panels. So *zero* time.
If I ran the pot at 2 am, then 470 watts of panels would replace the energy used in about 7 minutes at solar noon.
Those are the "extreme" ends. The truth is some where in the middle. 400 watts for 7 minutes = 4.6 amp-hours. If the battery bank is 225 amp-hours and is at 85% state of charge then it would take about 9 minutes to replace the energy used, because the battery bank will not accept more than about 33 amps charging rate due to internal resistance and other factors. At 95% state of charge it might take 30 minutes to replace the 4.6 amp-hours (that's a wild guess btw).
My coffee pot draws a scant 400 watts and does so for 7 minutes--so it would more or less at solar noon run directly from the panels. So *zero* time.
If I ran the pot at 2 am, then 470 watts of panels would replace the energy used in about 7 minutes at solar noon.
Those are the "extreme" ends. The truth is some where in the middle. 400 watts for 7 minutes = 4.6 amp-hours. If the battery bank is 225 amp-hours and is at 85% state of charge then it would take about 9 minutes to replace the energy used, because the battery bank will not accept more than about 33 amps charging rate due to internal resistance and other factors. At 95% state of charge it might take 30 minutes to replace the 4.6 amp-hours (that's a wild guess btw).
rjxj wrote:
With his panel how long would it take to put that back in the batteries. Given decent sun and good angle. As I said Im not up on solar. Thanks
