Skip to main content

Otii Battery Toolbox

The ultimate solution for battery profiling, battery simulation, battery testing and validation. 

For low power IoT devices and electronics.

Otii Battery Toolbox

The ultimate solution for battery profiling, battery simulation, battery testing and validation. 

For low power IoT devices and electronics.

Powerful, configurable and easy to use.

Match the right battery to your application and device with Otii Battery Toolbox. 

The toolbox is a subscription-based software add-on to Otii Pro software and elevates Otii hardware to a powerful battery profiler, emulator, and battery validation tool. 

You can subscribe on a monthly or annual basis and cancel anytime. You can also purchase a perpetual license.

Explore features sets

Battery Validation

Offers a detailed look at your battery performance. Charge, discharge in single or multiple steps, cycle discharges, and design custom scenarios. Test and validate one or multiple batteries in real time. 

Only for Ace Pro

Battery Profiling

Create discharge profiles of the batteries with specific conditions for the discharge that reflect how your application is behaving. Use these to emulate batteries.

Battery Emulation

Use any Otii box to act as a battery, following a discharge curve of your specific discharge profile. Simulate battery, get the real capacity value for your application.

Battery Validation

Powerful and cost efficient scalability

Battery batch validation may require a certain number of batteries to be measured whereas the benchmark and the qualification demand another set. Our solution offers flexibility in building the number of measurement units for your purpose.

Scale the number of units with the need and task. Reconfigure easily and fast. 

Battery Validation is applicable for Ace Pro only. 

Build your own realistic discharge-charge profiles

Our solution offers the most flexible way of validating the battery performance for a specific, realistic device behavior. 

Build your profile by combining different types of states: discharge, sleep and charge. 

For discharge, you have the flexibility to set several sub-steps. Choose from discharging at constant current, power or resistance. 

Get the most out of the batteries. 

Build your own realistic discharge-charge profiles

Our solution offers the most flexible way of validating the battery performance for a specific, realistic device behavior. 

Build your profile by combining different types of states: discharge, sleep and charge. 

For discharge, you have the flexibility to set several sub-steps. Choose from discharging at constant current, power or resistance. 

Get the most out of the batteries. 

Cycle the batteries

Cycle the batteries to validate how many complete charges and discharges a rechargeable battery can undergo before it degrades below an acceptable level.

Use it to evaluate the batteries for aging and stability. There are no limits on the number of cycles. 

Get started with battery cycling, testing and benchmarking!

Get started with battery cycling, testing and benchmarking!

Battery Profiling

Simple set-up for battery profiling

Three things are needed: Otii box, a battery of your choice, and a connection between the battery and Otii box (e.g. battery holder or spot welded cables)

What battery can be profiled and emulated?

Otii Arc Pro can sink currents up to 2.5 A and source currents up to 5 A. Monitor load currents from 50nA to 5 A with high accuracy up to 0.1%.

Otii Ace Pro can sink currents up to 5 A and source currents up to 5 A. Monitor load currents from 25nA to 5A with high accuracy up to 0.05%.

Connect as many units as there are batteries that are going to be discharged. More than two Otii boxes are easily connected with a powered USB hub. All connected batteries will be discharged with the same chosen profile.

Model sleep & active modes for profiling

Create discharge profiles of the batteries with specific conditions for the discharge that reflect how your application is behaving. There are two levels of discharge: low and high discharge for sleep and active mode respectively.

Since the conditions are set by how your application is intended to run, the profiling gives you a more realistic battery performance.

Model sleep & active modes for profiling

Create discharge profiles of the batteries with specific conditions for the discharge that reflect how your application is behaving. There are two levels of discharge: low and high discharge for sleep and active mode respectively.

Since the conditions are set by how your application is intended to run, the profiling gives you a more realistic battery performance.

Three options for battery discharge

Discharge the battery with a constant current. The current will not change as the battery voltage drops. This is similar to as if there were a linear regulator as load. 

Discharge the battery with constant power. Voltage is measured and discharge current is calculated to get set power. The discharge current will increase as the battery voltage drops during the profiling.

Discharge the battery by simulating a resistance connected to the battery. The discharge current will decrease as the battery voltage drops during the profiling.

Start creating battery discharge profiles!

Start creating battery discharge profiles!

Battery Emulation

Use Otii Arc/Ace Pro as your battery

Otii hardware acts as a battery, following the profiled discharge curve. Choose a battery profile that you have created and the discharge curve will be shown for that battery for the conditions set during the profiling.

Otii hardware will adjust the output voltage depending on the load, just like a real battery with increasing internal resistance and decreasing open circuit voltage.

Fixed and follow discharge options for the emulation

Select Fixed emulation to simulate the battery with a constant “Used capacity”. Pick a spot on the discharge curve and remain in this position, emulating the battery at this specific position (position = how much used capacity is drawn from the battery).

The Follow option will simulate a discharge over the time you are recording. Choose this option if you want the tool to emulate the battery and change behavior as the energy is consumed from the battery. Position in the discharge curve will then move as your device consumes energy.

Fixed and follow discharge options for the emulation

Select Fixed emulation to simulate the battery with a constant “Used capacity”. Pick a spot on the discharge curve and remain in this position, emulating the battery at this specific position (position = how much used capacity is drawn from the battery).

The Follow option will simulate a discharge over the time you are recording. Choose this option if you want the tool to emulate the battery and change behavior as the energy is consumed from the battery. Position in the discharge curve will then move as your device consumes energy.

Parallel and series battery set-ups

Emulate set-ups with battery cells in parallel and/or series – up to 4 batteries for parallel set-up and flexible number for series set-up depending on the Open Circuit Voltage (OCV). Note the max OCV of 5V for Otii Arc Pro and 25V for Otii Ace Pro.

Simulate battery discharge profile for you specific use case

Simulate battery discharge profile for you specific use case

Battery model parameters

Battery Model Parameters (using Otii Arc)
Points in Emulation as many as no of iterations
ESR Range (1) up to 5 kohm
ESR Resolution down to 1 mohm
Voc Range 0.5V to 5V
Voc Resolution 1 mV
Capacity Range no limit
Capacity Resolution 1 µAh
(1) Otii Battery Toolbox emulates the total ESR.
Battery Model Parameters (using Otii Ace)
Points in Emulation as many as no of iterations
ESR Range (1) up to 5 kohm
ESR Resolution down to 1 mohm
Voc Range 0V to 25V
Voc Resolution 1 mV
Capacity Range no limit
Capacity Resolution 1 µAh
(1) Otii Battery Toolbox emulates the total ESR.
How can I purchase Otii Battery Toolbox?

Go to User Management/Licenses and add the Otii Battery Toolbox to your Otii Pro license. If you don’t have Otii Pro license, you can add that together with Otii Battery Toolbox. The payment will be processed by our e-commerce partner Fastspring.

How do I activate my license?

Please follow these simple steps here.

How can I request customized plan for my team?

If you are looking for a customized plan for your team’s and company’s needs, please contact our Sales team directly. We will be more than happy to respond to your request and help you achieve your project or business goal with our most suitable tools.

How can I cancel the Otii Toolbox?

You can easily cancel the Toolbox subscription in your Qoitech account in user management. We will only bill you for the actual time duration of the subscription.

You can also cancel the Otii Pro software subscription in your account.  You will then get reverted to Otii Basic software after the Otii Pro license expires. Note that once  the Pro subscription expires, you will no longer be able to use any Toolbox.

You can always resubscribe to Otii Pro software and pick up any add-on Toolbox at any time.

What battery model is used when Otii emulates a battery with Otii Battery Toolbox?

Otii models the battery with an OCV (Open Circuit Voltage) and Ri (internal resistance of the battery). OCV and Ri is measured for the complete capacity of the battery and is stored in a battery profile .json file.

The resolution of the Ri is dependent on the difference between the high-current and the low-current during the profiling so a low resistance battery, for example Li-Ion, needs a bigger difference between high-current and low-current, than when profiling a high resistance battery, for example a coin-cell.


Didn’t find what you were looking for?

“Having a tool like Otii that checks the power states over weeks to catch software bugs not visible when a debugger is attached, and quality checking the batteries with Otii Battery Toolbox as in this case is simply a must.”

Would you like to know more?

Would you like to know more?

Trusted by global market leaders

Trusted by global market leaders