Aug-10-2013 06:46 PM
Aug-11-2013 05:35 PM
Aug-11-2013 01:17 PM
pianotuna wrote:Yup, and glad you don't have one, that allows more "Don-posting-time". That is something that's good for me, I'm fer it!
Hi Westend,
Yup, tv's have gotten way more efficient. I don't use one.
Aug-11-2013 08:56 AM
pianotuna wrote:
Hi Jim,
You have not allowed for inverter losses which are at least 12% nor voltage drop losses on the DC side. You have not allowed for power factor losses, either. 140 watts of television will draw about 14 amps from the battery bank. If you want, go check it with a fluke clamp on meter.
It is almost always a mistake to "low ball" battery drains.TucsonJim wrote:pianotuna wrote:
Hi,
A 140 watt TV will draw about 14 amps from the battery bank.
14 amps is a little high. Current can be derived as follows: Wattage/Voltage = Current. So 140 Watts/12 Volts = 11 2/3 Amps.
Aug-11-2013 08:51 AM
Aug-11-2013 08:47 AM
TucsonJim wrote:pianotuna wrote:
Hi,
A 140 watt TV will draw about 14 amps from the battery bank.
14 amps is a little high. Current can be derived as follows: Wattage/Voltage = Current. So 140 Watts/12 Volts = 11 2/3 Amps.
Aug-11-2013 07:42 AM
TucsonJim wrote:pianotuna wrote:
Hi,
A 140 watt TV will draw about 14 amps from the battery bank.
14 amps is a little high. Current can be derived as follows: Wattage/Voltage = Current. So 140 Watts/12 Volts = 11 2/3 Amps.
Aug-11-2013 07:06 AM
pianotuna wrote:
Hi,
A 140 watt TV will draw about 14 amps from the battery bank.
Aug-10-2013 10:26 PM
Aug-10-2013 07:29 PM