The ATtiny45/85 USB Phone Charge Guard regulates charging by monitoring voltage, current, power, and energy, protecting Li-ion batteries.

A buck boost converter that can be powered from a Li-Ion battery and output 3.3V @ 500mA. Powered by the TPS63051YFFR and in the same package as a standard Adafruit buck converter. Expect to squeeze around 5-10% SoC from a typical Li-Ion battery. Input Voltage Range: 2.5V to 5.5V Assembled at pcbway.com

This project is a reference design based on the BQ25895, a single cell Li-Ion battery charger. It manages the power between an external power source (VIN), a Li-Ion battery (BAT), and a system power rail (SYS). Key features include power-path management, battery thermistor monitoring, and charge status indication. #project #BQ25895 #ReferenceDesign #charger #BatteryManagemen #referenceDesign #bms #texas-instruments #template #reference-design #polygon

The SparkFun LiPo Charger Basic is stripped down of all features and just does one thing well - charge 3.7V LiPo cells at a rate of 500mA. It is designed to charge single-cell Li-Ion or Li-Polymer batteries.

The TP4056 1A Li-ion Lithium Battery Charging Module with Current Protection – Mini USB is a compact device designed to charge individual lithium ion (Li-Ion) cells that lack their own protective circuit, such as 16550s, with a single cell capacity of 3.7V and 1 Ah or higher. This battery charging module employs the TP4056 charger IC and DW01 battery protection IC to provide a charge current of 1A, which will cease upon completion of the charging process. https://robocraze.com/products/tp4056-lithium-battery-charging-board #PCB #TP4056 #battery

Cost-Effective USB-C 2S Li-Ion Charger with Integrated 1W LED Flashlight - Fully Discrete, Generic Components, Minimalist Design

A Buck converter that can be power by Li-ion Battery and output 3.3 volt and 500mA Power by the TPS63051YFFR and the same package as a In the same as a Package as a standard dafruit buck converter. input Voltage Range : 3.3 v to 5.5 v

A buck boost converter that can be powered from a Li-Ion battery and output 3.3V @ 500mA. Powered by the TPS63051YFFR and in the same package as a standard adafruit buck converter . Input Voltage range : 2.5V to 5.5V

This project is a reference design based on the BQ25606, a single cell Li-Ion battery charger. It manages the power between an external power source (VIN), a Li-Ion battery (BAT), and a system power rail (SYS). Key features include power-path management, battery thermistor monitoring, and charge status indication. #project #BQ25606 #ReferenceDesign #charger #BatteryManagement #referenceDesign #bms #texas-instruments #template #reference-design #polygon