BFL13 wrote:
One of the comments mentions that Watt Hrs are good when the voltage stays the same as in the stick house.
With a battery falling in voltage as you draw from it, does that not make using AH better for seeing how much capacity is left in it?
Only If/When using power at the same amp draw as the mfg specs the 20 HR rate
If 20he rate is 5 amps, and you are using 2 amps, then the total useable AmpHrs will be greater than spec
If you are using 10amps then the useable AmpHrs is less than spec
If you have a 100w load that is constant, as the voltage drops, amps flow/use increases to maintain that 100watts of work energy
DC resistive loads don't do that,
But inverters and DC to DC voltage converter will increase input amps use , watts, HP, btu , calories are all specific energy/power measurements that accurately describe real power use, and can be converted from one to the others
And yes calories is a measure of heat energy from a food source,
Yes it takes laboratory equipment to do to these measurements