Qoitech Otii Battery Toolbox

Qoitech Otii Battery Toolbox (BT) is a software license that unlocks three connected workflows on Otii instruments: Profile & Emulate, Estimate Battery Life, and Test & Validate. Engineers can characterize batteries under real device loads, predict runtime against any battery profile in seconds, and run programmable charge/discharge cycles for qualification and aging evaluation. The BT enables replacing multi-week runtime tests and rented lab equipment with repeatable bench-level measurements. Otii BT runs in the Otii Desktop App on Windows, Ubuntu, and macOS.

Profile & Emulate, and Estimate Battery Life operate with both Otii Arc Pro and Otii Ace Pro. Test & Validate requires an Otii Ace Pro.

Features

Profile (Arc Pro and Ace Pro)
- Discharge a battery under a load profile matching your device's actual sleep and active current draw
- High and low discharge steps support constant current, constant power, or constant resistance, with per-step durations, cutoff voltages, and pulse-width control
- Combines discharge, idle, and configurable step levels to match real device behaviour
- Captures voltage, current, and capacity at up to 4ksps (Arc Pro) or 50ksps (Ace Pro) across the full discharge
- Saves result as a reusable battery profile: voltage curve, capacity, and internal resistance characteristics
- Profiles are importable, exportable, and shareable across your team
- Connect multiple Otii instruments via a USB hub for simultaneous multi-battery profiling
Battery emulation (Arc Pro and Ace Pro)
- Fixed emulation holds the battery at a constant used capacity — a single point on the discharge curve
- Follow emulation plays out the full discharge in real time, adjusting output voltage as the device draws power
- Supports custom cell pack configurations in series or parallel; Max OCV 5V (Arc Pro), 25V (Ace Pro)
Estimate Battery Life (Arc Pro and Ace Pro)
- Combines a measured device consumption profile with any battery profile to quickly predict expected battery runtime
- Adjust battery profile, cell configuration, duty cycle, or temperature assumption and re-run instantly — no additional bench time
- Compare multiple battery and device scenarios within the same project
- Produces a runtime estimate backed by measurements of your device's actual behaviour, suitable for datasheets and product specs

Test & Validate (Ace Pro only)
- Build fully programmable battery cycling sequences with configurable discharge, idle, and charge states
- Discharge steps support constant current, constant power, or constant resistance, with per-step durations, cutoff voltages, and pulse-width control
- No software limit on the number of cycles or the number of batteries tested simultaneously
- Chain multiple Ace Pro units via a powered USB hub; up to 25V/5A per unit with 15W continuous discharge limit
- Captures voltage, current, energy, and capacity simultaneously across all connected units
Shareable license
- Otii Battery Toolbox is shareable with one user assigned at a time
- The license can be used in offline mode
Otii instruments measurement performance
- Otii Arc Pro: current readback accuracy ±(0.1% + 50nA), resolution 5nA, up to 4ksps
- Otii Ace Pro: current readback accuracy ±(0.05% + 25nA), resolution 0.4nA, up to 50ksps