Just to clarify, in his last paragraph where Todd referred to the 90 Amp TV,
he meant 90 Watts. So a TV consuming 90 Watts through an Inverter with
an efficiency of 80% would consume approximately 112 watts (90/0.8) from the
battery. In round figures, that's about 10Amps at 12V Over 3 hours that
would be 336 watt-hrs or about 1/3 of the 100 Amp/hr battery's capacity.
But don't forget you shouldn't discharge a lead-acid battery beyond 50% or
its cycle life will drop drastically. So in real terms that's about all you
could discharge from a lead-acid battery considering you likely also had an
LED light on, used the water pump a few times and even a roof fan going.
Actually if you had watched TV and had the roof fan going all night you
would likely have deep discharged the 100 Amp-hr battery by morning.
My 150W panel flat on top of my storage pod through a PWM controller will
give me about 6.5 amps @ 13.8V = 90 watts in bright sunshine. My panel is
rated at 8.3 Amps @ 18V, so with a MPPT controller I might be able to get
8.3A x 13.8V = 115W. I would need to track the sun to get close to the rated
150 watts from the panel.
Unless you have lots of solar panel power and lots of battery capacity
(LiFePO4 batteries... Read $$$), you are better to start the generator to
run
high current appliances like coffee makers, microwaves and toasters.
Just my 2 cents.
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
*************************************
he meant 90 Watts. So a TV consuming 90 Watts through an Inverter with
an efficiency of 80% would consume approximately 112 watts (90/0.8) from the
battery. In round figures, that's about 10Amps at 12V Over 3 hours that
would be 336 watt-hrs or about 1/3 of the 100 Amp/hr battery's capacity.
But don't forget you shouldn't discharge a lead-acid battery beyond 50% or
its cycle life will drop drastically. So in real terms that's about all you
could discharge from a lead-acid battery considering you likely also had an
LED light on, used the water pump a few times and even a roof fan going.
Actually if you had watched TV and had the roof fan going all night you
would likely have deep discharged the 100 Amp-hr battery by morning.
My 150W panel flat on top of my storage pod through a PWM controller will
give me about 6.5 amps @ 13.8V = 90 watts in bright sunshine. My panel is
rated at 8.3 Amps @ 18V, so with a MPPT controller I might be able to get
8.3A x 13.8V = 115W. I would need to track the sun to get close to the rated
150 watts from the panel.
Unless you have lots of solar panel power and lots of battery capacity
(LiFePO4 batteries... Read $$$), you are better to start the generator to
run
high current appliances like coffee makers, microwaves and toasters.
Just my 2 cents.
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
*************************************
