Try out the Otii desktop application before your Otii Arc purchase!
The simulator function in the desktop application lets you simulate current and voltage measurements as well as debug logs without Otii Arc. See here how to work with the simulator!
Have you upgraded your Otii Arc yet?
Otii Toolboxes
Otii Toolboxes
Elevate your Otii Arc to powerful, specialized tools such as battery profiler and emulator, automatization tool, logger.