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Assembling of custom power bank.

Acceptance of high-quality case made by printing of JLCPCB 3D printing service + transparent acrylic panels by laser cut.

Acceptance of assembled custom power bank (APB) boards from JLCPCB.

How to significantly improve resistance to mechanical stress of the USB-C connectors.

Let's see internals of USB 3.2 Cable with Display Port (DP) support.

Teardown and components analysis of Erqos EQSP32CE PLC based on ESP32-S3 MCU with expansion modules feature.

Real example of using Gold Edge Plating option on the custom power bank PCB.

Mini versions of ESP modules become more and more widespread, but their soldering is harder.

Using custom probes for charging smart watch/band without special magnet cable.

Simple and reliable method of board-to-board (B2B) connection using right-angle terminals and screws.

Experience of using modern I2C charger BQ25895without battery.

How to avoid getting into trouble when using EN pin of boost DC-DC converters.

Modern power banks supports fast charging protocols with higher voltage/current. Let's see how chosen protocol affect of total delivered energy to the device.

Easy fixing BQ769202 AFE Arduino library by force disabling CRC.

Just photos of old power bank design using 100x100 2L boards and many LEDs.