What formula do I use to calculate aH over time

[No.15]

Like in a battery discharge test. I am logging W, V and I every second and I need the formula to figure total aH

Thanks

 

[John Frum]

Like in a battery discharge test. I am logging W, V and I every second and I need the formula to figure total aH

w / v = amps
Each second you calculate amp seconds.
There are 3600 amp seconds in a hour.

 

[No.15]

w / v = amps
Each second you calculate amp seconds.
There are 3600 amp seconds in a hour.

I thought so. I had it right but found a typo that was my issue, Thanks

 

[Supervstech]

Like in a battery discharge test. I am logging W, V and I every second and I need the formula to figure total aH

Thanks

What are ya trying to do? Estimate a bank need? Making a energy audit?

 

[tricky74]

That is where the cheapo watt meter with anderson plugs is useful.
Just plug it in and run the load.
It will tell amp hours use.
Pays to check the calibration and adjust readings from there.

 

[No.15]

What are ya trying to do? Estimate a bank need? Making a energy audit?

I was creating a formula for my new DC load bank to calculate aH over time during battery testing. I had a spurious . in my formula for some reason, darn typos