Predict your devices’s real battery life – before you ship.
Profile, emulate, and validate batteries for low-power IoT and embedded electronics. Replace guesswork and multi-week runtime tests with repeatable measurements and battery life estimation done in seconds.
Don’t have Otii hardware yet? See which Otii fits you use case →

Profile & emulate
Characterize battery and replay its discharge curve.
- Sleep and active mode modeling
- 25 nA–5 A range, 0.05% accuracy
- Compare batteries side-by-side
- Import/export discharge profiles
- Emulate cells in series or parallel
- Runs on Ace Pro or Arc Pro
Estimate battery life
Predict your device’s battery life before you commit and ship.
- Combine real device profiles + battery profiles
- Compare battery life scenarios
- Test “what if” scenarios in seconds
- Use your created discharge profiles or manufacturers
Test & validate
Test, validate and cycle batteries under your actual load profile.
- Discharge / idle / charge / idle, repeat – build your custom test sequence
- Constant current, power, or resistance
- Unlimited number of cycles
- Scale units to your batch size
- Runs on Ace Pro only
Hardware compatibility at glance.
| Otii Ace Pro | Otii Arc Pro | |
|---|---|---|
| Measurement range | 25 nA – 5 A | 50 nA – 5 A |
| Capacity range | no limit | no limit |
| Current sink | up to 5 A | up to 2.5 A |
| Max OCV (emulation) | 25 V | 5 V |
| Battery validation feature | ✔ | – |
“Thanks to Otii, we have been able to reduce our Strips current consumption even further to reach more than 10 years battery life. Every developer should have Otii.”





Otii Battery Toolbox is a software license for Otii software application that runs on Windows, Ubuntu, and macOS.
Monthly
Cancel anytime. Best for one-off, short projects and individuals.
Yearly
Save >15%. Best for ongoing development and teams.
MOST POPULAR
Perpetual
One-time, forever license. Best for long-lifecycle products.
Y and Z updates on Otii X.Y.Z software included.
Common questions
Yes — if you have Otii hardware (Arc Pro or Ace Pro), you can start a free trial and use the full Battery Toolbox on your own bench. If you don’t have Otii hardware yet, book a demo and we’ll walk you through the toolbox on real equipment.
Profiling and emulation as well as battery life estimation work on both Otii Arc Pro and Otii Ace Pro. Battery Validation (multi-battery cycling with high precision) requires Otii Ace Pro. See the compatibility table above.
No. Licenses are tied to your Qoitech account. Activate on up to N machines, move between lab PCs as your setup changes. You can also share with or move your license to your colleague.
Your recorded data and exported profiles stay on your machines — Otii stores files locally. You lose access to licensed features but not to anything you’ve already captured.
Two ways to start.
Already have an Otii Arc Pro or Ace Pro? Start the Battery Toolbox free trial. New to Otii? Book a demo and we’ll walk you through your use case.