- #1
big_tobacco
- 6
- 0
Hello
Could you tell me is there a way of accurately measuring battery life? Basically I have a listening device, it requires 2 x AA batteries, say 2400mAh each (so...4800mAh in total).
I am aware you can ‘estimate’ battery life by determining the device’s current consumption and then calculating against the battery(s) mAH rating, however this assumes the supply voltage remains constant.
I have measured the device as having an on-load voltage of 3.04V, and an off-load voltage of 3.08V.
Also I have found the minimum total voltage required to power the listening device is 1.35 V. (0.67 V per battery)
With this information how could I find out how long the device will run for by cross-checking it with a manufacturer's ‘Discharge Characteristics chart’.
I would be most appreciative if anyone could help.
Kind regards
Lee
Could you tell me is there a way of accurately measuring battery life? Basically I have a listening device, it requires 2 x AA batteries, say 2400mAh each (so...4800mAh in total).
I am aware you can ‘estimate’ battery life by determining the device’s current consumption and then calculating against the battery(s) mAH rating, however this assumes the supply voltage remains constant.
I have measured the device as having an on-load voltage of 3.04V, and an off-load voltage of 3.08V.
Also I have found the minimum total voltage required to power the listening device is 1.35 V. (0.67 V per battery)
With this information how could I find out how long the device will run for by cross-checking it with a manufacturer's ‘Discharge Characteristics chart’.
I would be most appreciative if anyone could help.
Kind regards
Lee