Otii Battery Toolbox

Otii Battery Toolbox

Match the right battery to your application and device.

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Overview
Datasheet
FAQ
Documentation

Otii Battery Toolbox is a subscription-based software add-on that upgrades any Otii box to a powerful battery profiler and emulator. 

Works on all Otii boxes. Requires Otii Pro software. Can be subscribed to monthly or annually. 

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The final list of features, as well as the UI for the Otii Battery Toolbox, are subject to change for the final product release.

Features

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 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%,

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.

Battery emulation

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

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

Constant and track discharge options for the emulation

Select Constant 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 Track 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 each set-up. Note the max Open Circuit Voltage (OCV) of 5V for Otii Arc and 25V for Otii Ace Pro.

Multi set-up

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.

4-wire set-up

Compensate for the cable resistance when discharging batteries with high current or if battery cables are very thin. Connect Sense+ to the battery positive pole and Sense- to the battery negative pole, and Otii box will then compensate for the voltage drop in the cables by using 4 terminal sensing.

Battery model parameters using Otii Arc Pro

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 Pro

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 to get the Toolboxes?

Once you subscribe to Otii Pro Software, either monthly or yearly, you will have access to select and purchase your favored software add-on, the Otii Battery or/and Automation Toolbox. You can start and cancel the Automation Toolbox anytime. The Battery Toolbox is soon to be released.

How do I activate and reserve my license?

Otii Pro software, Otii Automation Toolbox and Battery Toolbox licenses will be activated automatically when you purchase the subscription. Otii Basic Software requires no license.

To use Otii Pro Software, Otii Automation Toolbox and Battery Toolbox, the license needs to be reserved. You can reserve and release the license in the User Management in the Otii application. 

How can I request Enterprise or customized plan?

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 a 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. Note that once you cancel the Pro subscription, 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.

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