# Latest **URL:** https://forum.qoitech.com/latest.md [Latest](https://forum.qoitech.com/latest.md) · [Categories](https://forum.qoitech.com/categories.md) --- ## [Ace rebooting on power enable for certain DUT](https://forum.qoitech.com/t/ace-rebooting-on-power-enable-for-certain-dut/579)
**Author:** [@andyshinn](https://forum.qoitech.com/u/andyshinn)\ **Replies:** 1\ **Last updated:** [September 21, 2026, 6:53am UTC](https://forum.qoitech.com/t/ace-rebooting-on-power-enable-for-certain-dut/579 "2026-09-21T06:53:25Z")
I’m doing some power testing of MPPT charger devices hooked directly to the Ace power terminals. Nothing too special. One certain MPPT charger / 5V boost board immediately reboots the Ace when I enable power to it in the… --- ## [Measured: NTN antenna choice reduces energy per transmission by ~12× on the nRF9151](https://forum.qoitech.com/t/measured-ntn-antenna-choice-reduces-energy-per-transmission-by-12x-on-the-nrf9151/578)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [September 15, 2026, 12:57pm UTC](https://forum.qoitech.com/t/measured-ntn-antenna-choice-reduces-energy-per-transmission-by-12x-on-the-nrf9151/578 "2026-09-15T12:57:03Z")
For satellite IoT, the antenna is a bigger energy lever than for terrestrial networks — with no firmware changes and no reduction in reporting frequency. Four antennas on a Nordic nRF9151-SMA DK, Skylo GEO link with … --- ## [File saving after long test](https://forum.qoitech.com/t/file-saving-after-long-test/577)
**Author:** [@rneff](https://forum.qoitech.com/u/rneff)\ **Replies:** 1\ **Last updated:** [July 20, 2026, 7:01am UTC](https://forum.qoitech.com/t/file-saving-after-long-test/577 "2026-07-20T07:01:39Z")
I recently just ran a weekend test for a product using the battery emulation feature and am noticing that the time it takes to save the project is taking extremely long. The test took a total of 2d 21h 32m, and I had set… --- ## [How much power does the SDK really consume on the ESP32-C6](https://forum.qoitech.com/t/how-much-power-does-the-sdk-really-consume-on-the-esp32-c6/576)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [July 2, 2026, 1:12pm UTC](https://forum.qoitech.com/t/how-much-power-does-the-sdk-really-consume-on-the-esp32-c6/576 "2026-07-02T13:12:33Z")
Kevin Leon ran a power comparison of Arduino, Zephyr RTOS, and ESP-IDF using the same workloads and an automated measurement setup with Otii. The study looks at workload measurements, SDK overhead, UART sync, automat… --- ## [\[Otii 3.7\] Real-time channel monitoring without starting a recording in Otii](https://forum.qoitech.com/t/otii-3-7-real-time-channel-monitoring-without-starting-a-recording-in-otii/575)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [June 9, 2026, 1:26pm UTC](https://forum.qoitech.com/t/otii-3-7-real-time-channel-monitoring-without-starting-a-recording-in-otii/575 "2026-06-09T13:26:12Z")
When you’re bringing up hardware or running validation, you usually just want to check a few signals live to make sure everything is working. Starting a full recording session can feel unnecessary, and the default mon… --- ## [\[Otii 3.7\] Getting reliable battery life estimates from real power and battery measurements](https://forum.qoitech.com/t/otii-3-7-getting-reliable-battery-life-estimates-from-real-power-and-battery-measurements/574)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [June 2, 2026, 6:16pm UTC](https://forum.qoitech.com/t/otii-3-7-getting-reliable-battery-life-estimates-from-real-power-and-battery-measurements/574 "2026-06-02T18:16:05Z")
If you’ve ever tried to estimate battery runtime by hand you know how many assumptions pile up before you get a number you can trust. Battery Life Estimator in Otii 3.7 connects your device’s measured power use direc… --- ## [Double the batteries. Double the runtime. Right?](https://forum.qoitech.com/t/double-the-batteries-double-the-runtime-right/573)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [May 21, 2026, 1:05pm UTC](https://forum.qoitech.com/t/double-the-batteries-double-the-runtime-right/573 "2026-05-21T13:05:02Z")
Not quite. In our latest test, we ran the same ESP32-based temperature sensor on two battery configurations: :battery: 3S1P (3 AAA cells) :battery::battery: 3S2P (6 AAA cells) …and got more than 2.5x the battery li… --- ## [\[Otii News\] Manage, analyze, compare — all your battery discharge profiles in one place](https://forum.qoitech.com/t/otii-news-manage-analyze-compare-all-your-battery-discharge-profiles-in-one-place/572)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [May 19, 2026, 12:27pm UTC](https://forum.qoitech.com/t/otii-news-manage-analyze-compare-all-your-battery-discharge-profiles-in-one-place/572 "2026-05-19T12:27:13Z")
Choosing the right battery is never simple. Supplier profiles, your team’s test data, datasheets that don’t reflect real conditions — the challenge isn’t finding data, it’s making sense of it. The Battery Profile Man… --- ## [Otii Arc reverse current whlie not in sink mode](https://forum.qoitech.com/t/otii-arc-reverse-current-whlie-not-in-sink-mode/571)
**Author:** [@dstude](https://forum.qoitech.com/u/dstude)\ **Replies:** 3\ **Last updated:** [May 19, 2026, 7:05am UTC](https://forum.qoitech.com/t/otii-arc-reverse-current-whlie-not-in-sink-mode/571 "2026-05-19T07:05:51Z")
I have a charger trying to drive about 600 mA constant current into the Otii Arc while at 4V. the current actually driven increases as i reduce the voltage so it appears I’m running into some limitation. Is this practi… --- ## [New Otii 3.7 is out – this is what battery life estimation should look like](https://forum.qoitech.com/t/new-otii-3-7-is-out-this-is-what-battery-life-estimation-should-look-like/570)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [May 12, 2026, 12:51pm UTC](https://forum.qoitech.com/t/new-otii-3-7-is-out-this-is-what-battery-life-estimation-should-look-like/570 "2026-05-12T12:51:58Z")
The industry runs on datasheet assumptions. We just made that optional. Your device’s power consumption and battery profile now work together in one seamless workflow. Real measurements in, defensible estimates out. … --- ## [Use Otii software without Otii hardware](https://forum.qoitech.com/t/use-otii-software-without-otii-hardware/569)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [January 8, 2026, 2:07pm UTC](https://forum.qoitech.com/t/use-otii-software-without-otii-hardware/569 "2026-01-08T14:07:34Z")
Otii software works as a powerful communication and analysis tool for suppliers, production teams, and remote R&D groups collaborating on long-lived, low-power products. With Otii software, you can: Open and review… --- ## [You asked, we delivered - New Otii 3.6 is out!](https://forum.qoitech.com/t/you-asked-we-delivered-new-otii-3-6-is-out/568)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [December 2, 2025, 8:45pm UTC](https://forum.qoitech.com/t/you-asked-we-delivered-new-otii-3-6-is-out/568 "2025-12-02T20:45:52Z")
Enhanced data analysis, improved user experience, and further streamlined automated testing and licensing. Here’s what you get with the new release: Compare different time segments using multiple selections Minibar … --- ## [Did you know? Incoming inspection](https://forum.qoitech.com/t/did-you-know-incoming-inspection/567)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [November 24, 2025, 2:08pm UTC](https://forum.qoitech.com/t/did-you-know-incoming-inspection/567 "2025-11-24T14:08:18Z")
Incoming inspection is the process of verifying components or materials as they arrive from suppliers to ensure they meet the specified requirements. In battery and power applications, this means verifying the quality… --- ## [Did you know? Continuous Integration (CI)](https://forum.qoitech.com/t/did-you-know-continuous-integration-ci/566)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [November 17, 2025, 6:22pm UTC](https://forum.qoitech.com/t/did-you-know-continuous-integration-ci/566 "2025-11-17T18:22:27Z")
Continuous Integration (CI) is a core software development practice where developers frequently merge their code changes into a shared repository, and each change is automatically built and tested. Continuous Integrat… --- ## [Did you know? Conversion Efficiency](https://forum.qoitech.com/t/did-you-know-conversion-efficiency/565)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [November 10, 2025, 4:23pm UTC](https://forum.qoitech.com/t/did-you-know-conversion-efficiency/565 "2025-11-10T16:23:27Z")
\*\* Conversion efficiency\*\* is the percentage of input power a converter, regulator, or PMIC successfully delivers to the load, with the rest lost as heat. For example, a DC/DC converter operating at 90% efficiency deli… --- ## [Did you know? Maximum Power Point Tracking](https://forum.qoitech.com/t/did-you-know-maximum-power-point-tracking/564)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [November 3, 2025, 11:19am UTC](https://forum.qoitech.com/t/did-you-know-maximum-power-point-tracking/564 "2025-11-03T11:19:26Z")
Maximum Power Point Tracking (MPPT) is a method used in photovoltaic (PV) systems to continuously adjust the operating point of a PV cell so it delivers maximum power under given light and temperature conditions. Sinc… --- ## [Did you know? Ampere-hours vs Watt-hours](https://forum.qoitech.com/t/did-you-know-ampere-hours-vs-watt-hours/563)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [October 31, 2025, 1:05pm UTC](https://forum.qoitech.com/t/did-you-know-ampere-hours-vs-watt-hours/563 "2025-10-31T13:05:24Z")
Ampere-hours (Ah) and watt-hours (Wh) are both ways to measure battery capacity, but they represent different aspects. Ah measures the charge capacity, indicating how much current a battery can deliver over time, whil… --- ## [Did you know? State of Health (SoH)](https://forum.qoitech.com/t/did-you-know-state-of-health-soh/562)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [October 27, 2025, 6:45pm UTC](https://forum.qoitech.com/t/did-you-know-state-of-health-soh/562 "2025-10-27T18:45:41Z")
𝗦𝘁𝗮𝘁𝗲 𝗼𝗳 𝗛𝗲𝗮𝗹𝘁𝗵 (𝗦𝗼𝗛) is a metric that reflects the overall condition of a battery compared to when it was new. It typically indicates how much of the original capacity, power delivery, or performance the battery can … --- ## [Did you know? PV cell](https://forum.qoitech.com/t/did-you-know-pv-cell/561)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [October 20, 2025, 3:25pm UTC](https://forum.qoitech.com/t/did-you-know-pv-cell/561 "2025-10-20T15:25:41Z")
A photovoltaic (PV) cell, also known as a solar cell, converts light into electrical energy using the photovoltaic effect. The output characteristics, open-circuit voltage (Voc), short-circuit current (Isc), and maxim… --- ## [Did you know? I-V curve](https://forum.qoitech.com/t/did-you-know-i-v-curve/560)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [October 17, 2025, 2:43pm UTC](https://forum.qoitech.com/t/did-you-know-i-v-curve/560 "2025-10-17T14:43:07Z")
𝗔𝗻 𝗜-𝗩 𝗰𝘂𝗿𝘃𝗲 (current-voltage curve) characterizes the electrical behavior of a photovoltaic (PV) cell by plotting output current (I) versus voltage (V) under specific illumination and temperature conditions. Providin… --- ## [Did you know? Supercapacitor ─| |─](https://forum.qoitech.com/t/did-you-know-supercapacitor/559)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [October 13, 2025, 8:18pm UTC](https://forum.qoitech.com/t/did-you-know-supercapacitor/559 "2025-10-13T20:18:51Z")
A supercapacitor is an energy storage device that stores charge electrostatically, allowing for rapid charge and discharge cycles with high power density. Unlike batteries, supercapacitors have low energy density but … --- ## [Did you know? Battery aging](https://forum.qoitech.com/t/did-you-know-battery-aging/558)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [October 10, 2025, 1:23pm UTC](https://forum.qoitech.com/t/did-you-know-battery-aging/558 "2025-10-10T13:23:01Z")
Battery aging is the gradual deterioration of a battery’s capacity and performance over time due to chemical and physical changes within the cell. It results in reduced energy storage, higher internal resistance, and … --- ## [Building a profile file for the Battery Simulator](https://forum.qoitech.com/t/building-a-profile-file-for-the-battery-simulator/557)
**Author:** [@moudshoorn](https://forum.qoitech.com/u/moudshoorn)\ **Replies:** 1\ **Last updated:** [September 25, 2025, 1:54pm UTC](https://forum.qoitech.com/t/building-a-profile-file-for-the-battery-simulator/557 "2025-09-25T13:54:22Z")
I built this battery profile - A triple 18650 cell 3.7V 6600ma battery. I don’t think my file is quite right and was hoping someone could look at it and comment on what i may have done wrong.. {“battery”:{“model”:“1S3P\_… --- ## [OTII-ACE-PRO not powering on / "Failed to open COM" error](https://forum.qoitech.com/t/otii-ace-pro-not-powering-on-failed-to-open-com-error/556)
**Author:** [@polgero](https://forum.qoitech.com/u/polgero)\ **Replies:** 1\ **Last updated:** [September 22, 2025, 6:20am UTC](https://forum.qoitech.com/t/otii-ace-pro-not-powering-on-failed-to-open-com-error/556 "2025-09-22T06:20:10Z")
Hello Qoitech Community, I’m seeking some urgent assistance with my OTII-ACE-PRO. I recently used it to power a Starlink device, and unfortunately, it no longer seems to be functional. When I connect the OTII-ACE-PRO t… --- ## [Subject: Inquiry about Remote Ampere-Hour Monitoring for Forklift Batteries](https://forum.qoitech.com/t/subject-inquiry-about-remote-ampere-hour-monitoring-for-forklift-batteries/555)
**Author:** [@eugeny177](https://forum.qoitech.com/u/eugeny177)\ **Replies:** 0\ **Last updated:** [August 27, 2025, 6:43am UTC](https://forum.qoitech.com/t/subject-inquiry-about-remote-ampere-hour-monitoring-for-forklift-batteries/555 "2025-08-27T06:43:51Z")
Good day, Our company specializes in the installation and custom assembly of battery packs for cargo forklifts and electric trolleys. To ensure optimal battery performance and longevity for our clients, I need to monit… --- ## [Arc unresponsive](https://forum.qoitech.com/t/arc-unresponsive/554)
**Author:** [@hi1](https://forum.qoitech.com/u/hi1)\ **Replies:** 2\ **Last updated:** [July 28, 2025, 9:55am UTC](https://forum.qoitech.com/t/arc-unresponsive/554 "2025-07-28T09:55:51Z")
After I pressed and held the reset button on its back until an audible click occurred, the Arc has gone dark. No serial port visible (Linux), no blinking LED, no nothing. What state have I entered, and how do I exit it? … --- ## [Change UART Line terminator 3.x.x](https://forum.qoitech.com/t/change-uart-line-terminator-3-x-x/553)
**Author:** [@sleinwoib](https://forum.qoitech.com/u/sleinwoib)\ **Replies:** 1\ **Last updated:** [July 28, 2025, 6:04am UTC](https://forum.qoitech.com/t/change-uart-line-terminator-3-x-x/553 "2025-07-28T06:04:08Z")
Hello, Coming from version 2.x to the version 3.x, I fail to find how to change the line terminator and adding an external UART to the recording. Do I miss something or is this option not available on version 3.5.5 of… --- ## [Curious about Otii but don’t have the Arc or Ace yet?](https://forum.qoitech.com/t/curious-about-otii-but-don-t-have-the-arc-or-ace-yet/552)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [July 4, 2025, 2:59pm UTC](https://forum.qoitech.com/t/curious-about-otii-but-don-t-have-the-arc-or-ace-yet/552 "2025-07-04T14:59:17Z")
No worries! You can explore the Otii software for free - just one click to download. :laptop::high\_voltage: On our GitHub, you’ll find Otii projects on low power measurements, voltage sweep and battery cycling - all rea… --- ## [Help Needed: Measuring Energy Consumption of BLE Device Using Otii Arc!](https://forum.qoitech.com/t/help-needed-measuring-energy-consumption-of-ble-device-using-otii-arc/546)
**Author:** [@marcellosalas](https://forum.qoitech.com/u/marcellosalas)\ **Replies:** 1\ **Last updated:** [July 3, 2025, 11:05am UTC](https://forum.qoitech.com/t/help-needed-measuring-energy-consumption-of-ble-device-using-otii-arc/546 "2025-07-03T11:05:58Z")
Hi everyone, I am fairly new to energy profiling and recently started using the Otii Arc to measure the energy consumption of my BLE-enabled IoT sensor. I am trying to optimize battery life.., but I am a bit confused ab… --- ## [Power profile with AT commands in Otii](https://forum.qoitech.com/t/power-profile-with-at-commands-in-otii/545)
**Author:** [@mariahernandez](https://forum.qoitech.com/u/mariahernandez)\ **Replies:** 0\ **Last updated:** [June 17, 2025, 11:37am UTC](https://forum.qoitech.com/t/power-profile-with-at-commands-in-otii/545 "2025-06-17T11:37:41Z")
If you’re developing an IoT device with LoRaWAN, Bluetooth, GNSS, or LTE-M/NB-IoT, you’re likely using AT commands to configure settings like channel selection, signal strength, and power-saving modes. AT commands in Ot… [Next page](https://forum.qoitech.com/latest.md?page=1)