Watt Hrs vs Amp Hrs
This article helps explain these ratings and raises a question wrt battery charging older vs newer LFPs too. Not sure if this also applies to other battery types or if it matters with any when you me...
Forum Discussion
"The “amps” or “watts” display measures the rate of energy going in or out of your batteries so you can check your charging systems, and also to see how much energy each of your appliances use to help you conserve energy. "
So you look at the amps (or watts) display, and it says 10. That is the rate of energy transfer (power) that appliance is at.
But he also says "10" shows how much "energy" that appliance uses. Should that read, "power"? Seems the energy the appliance uses depends on how long you leave it on?
I don't know if the Trimetric does Watt hours to go along with the watts it can show. if it did you would use the battery capacity when full as your starting point for watt hr counting and SOC.
Some confusion over the watt hr rating of a battery exists so what to use as your starting point could be tricky. One LFP at 100AH says it is rated at 1280, but that is because the "nominal" voltage is 12.8
Its full SOC voltage is listed as 13.6v so now that would be 1360
If the rating is based on the max draw what does that make it?
(I will stick with AH to preserve my sanity :) )
So you look at the amps (or watts) display, and it says 10. That is the rate of energy transfer (power) that appliance is at.
But he also says "10" shows how much "energy" that appliance uses. Should that read, "power"? Seems the energy the appliance uses depends on how long you leave it on?
I don't know if the Trimetric does Watt hours to go along with the watts it can show. if it did you would use the battery capacity when full as your starting point for watt hr counting and SOC.
Some confusion over the watt hr rating of a battery exists so what to use as your starting point could be tricky. One LFP at 100AH says it is rated at 1280, but that is because the "nominal" voltage is 12.8
Its full SOC voltage is listed as 13.6v so now that would be 1360
If the rating is based on the max draw what does that make it?
(I will stick with AH to preserve my sanity :) )
