I just got a usb tester that is supposed to record how much mAh was used to recharge a battery. I'm hoping to use it to see how many mAh I used to vaporize a given amount of liquid at my setting and/or how much mAh i use in a typical day. I should be able to recharge during the day and get the numbers I'm looking for so long as the tester is always between the power supply and the recharging battery. the tester has non volitile memory that retains mAh until it's reset with a button. https://www.amazon.com/gp/product/B00J3JSEG6/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
If I run the battery down to the end won't it take more mAh to recharge than if I'm regularly topping off the charge. It takes more amps to supply a given amount of watts as volts decline so would the total mAh recorded to fully recharge a battery be more than the mAh needed to top off the battery because it takes less mAh to increase the charge of a battery with higher volts than lower? Watt's law in reverse?
If I run the battery down to the end won't it take more mAh to recharge than if I'm regularly topping off the charge. It takes more amps to supply a given amount of watts as volts decline so would the total mAh recorded to fully recharge a battery be more than the mAh needed to top off the battery because it takes less mAh to increase the charge of a battery with higher volts than lower? Watt's law in reverse?