Could Someone Give me Advice on the Impact of Battery Profiling on Energy Efficiency?

Hello there,

I have recently started working with Qoitechs Otii device; and I am impressed with its capabilities in battery profiling and energy consumption measurement. Although; I have a couple of questions regarding how to fully optimize the energy efficiency in my projects; particularly when it comes to using the Otii Pro for profiling battery performance under varying load conditions.

Firstly; I would like to understand better how different test configurations in Otii impact the accuracy of the data; especially when testing batteries with very small current draws. Are there any particular settings or considerations I should be aware of to ensure precision in these low load scenarios?

I am interested in how Otii’s integration with other tools like I2C or SPI communication can improve the overall analysis. Are there specific approaches to using Otii in combination with microcontroller based designs that will allow me to better understand the battery behavior over time?

I have read about the importance of the Power Profiler feature in Otii Pro; and I would appreciate any advice on best practices for using this function effectively to identify power hungry components within a system.

Also, I have gone through this post; https://forum.qoitech.com/t/i-want-tips-for-advanced-power-profiling-with-qoitech-otii-arc-machine-learning which definitely helped me out a lot.

Thanks in advance for your help and assistance.

Hi and welcome to the forum,

Thank you for the kind words!
Regarding accuracy and different scenarios, are you referring to discharging batteries or measuring a device under test (DUT)?
Both Otii Arc and Ace have different measurement intervals, that it switches seamlessly in-between, to keep the highest accuracy at all times.
Best result is achieved if you use short cables and possibly twisted cables if you see 50/60Hz noise.

I2C and SPI communication, to MCU of DUT is not implemented. Today, sending UART messages is the way you can identify what the MCU is doing. Also using the GPIOs of the MCU, monitoring this with the two GPIs of Arc/Ace can also be used.

We are working on adding more information regarding different use cases, you will find this here: Otii use cases
More is coming.

Best regards,
Björn