Bengaluru · Battery drain and charger testing
IoT, Wearable and TWS Earbud Power Testing in Bengaluru
Star Automations records sleep, wake and burst current of TWS earbuds, smartwatches, rings, trackers and IoT devices in Bengaluru, powered from a battery simulator, with a test record for each unit.

Important: This is an in-house electrical test and test record service for design checks, production, validation and post-repair testing. It is not NABL-accredited testing, and it is not BIS, CE, AIS-140 or RF certification. Our records do not replace a certified laboratory's report. For accredited certification, please use a NABL- or BIS-recognised laboratory.
Why power profiling matters for small battery devices
For a small cell, a few extra microamps in sleep or a long radio burst can shorten battery life noticeably. A current profile shows which state costs the most, so firmware and hardware changes can be checked one by one.
Sleep, wake and transmit states
- Sleep: the lowest power state, often in microamps or low milliamps
- Wake and connected idle: the level while the device is connected but not transmitting
- Transmit burst: peak, width and average current of short bursts
Earbuds, smartwatches, rings and GPS trackers can be tested within our instruments' range, up to 15 V.
What you need to provide
- The device or board, with a battery connector or fixture
- Test firmware or a test mode that puts the device into each state
- Your set conditions and limits
What we do not do
We do not do RF, EMC or protocol testing. AIS-140, BIS and CE approvals need notified or accredited laboratories. Our records can support your own design and pre-compliance checks, but they do not replace an accredited report or a certificate.
How it works
Send the details
Product type, quantity, battery voltage, expected current in each state, and your limits. Ship samples to us or book an on-site visit in Bengaluru.
Agree the test plan
We confirm in writing the supply voltage and output resistance, the device states, the duration, the limits and the connections, and tell you if your product is outside our range.
Test
Trained staff run each unit in a supervised area and log it individually.
Receive the record
You get set conditions, measured values, a graph or log where available, and a pass or fail result for each unit.
What you receive
A test record (PDF) that lists, for each unit: the unit ID, the supply conditions, the measured values, the graph or data file where available, a pass or fail result against your limits, and the instrument model used, test date and operator name. Logged data and photos can be added on request. We run the test you specify. We do not interpret compliance with a standard for you.
Frequently asked questions
Can you test TWS earbuds, smartwatches, trackers and IoT devices?
Yes, within our instruments' range. Single-cell and low-voltage devices such as earbuds, smartwatches, rings, GPS trackers and IoT sensors can be powered from the simulator while we record sleep, idle and burst currents. You supply the device with a test mode or firmware and your set conditions. We do not do RF, EMC or protocol testing.
Do you do RF, EMC, AIS-140 or BIS certification testing?
No. Our service is electrical power and current testing. RF, EMC, AIS-140, BIS, CE and similar approvals need notified or accredited laboratories. Our records can support your own design and pre-compliance checks, but they do not replace an accredited report or a certificate.
What voltage and current limits can you test?
Our instruments source up to 15 V. Per manufacturer datasheets, the 66319D main output is rated 0 to 3 A with 5 A peak, and the 2306 sources up to 5 A, power-limited, with current readback down to 0.1 microamp resolution. Anything above 15 V is outside our range.
Get a test plan
Tell us what you need to test: product, quantity, battery voltage, expected current in each state, and your limits or specification.
WhatsApp: +91 97866 22233. Website: www.starautomations.com. Address: 1st Floor, 40, Goshala Rd, Garudachar Palya, Mahadevapura, Bengaluru, Karnataka 560048.
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Our team replies by email or WhatsApp. For urgent requests, WhatsApp +91 97866 22233.
Star Automations provides in-house testing and test records. We are not a NABL-accredited or BIS-recognised laboratory. Star Automations is an independent multi-brand repair company and is not an OEM service centre.