M5Stack Atomic Battery Base (200mAh)

The M5Stack Atomic Battery Base is a portable power base designed specifically to power Atom series products. It features the ETA9085E10 high-efficiency boost converter solution and the LGS4056HDA linear charging management chip, with a built-in 200mAh rechargeable battery. It provides a stable 5V boosted output and ensures safe and efficient battery charging management. The product includes a built-in battery voltage detection circuit with an LED battery level indicator to display the battery's status in real-time. It comes with a DIP switch that supports one-touch switching between boost and charging modes, meeting the needs of portable power applications.

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Compatibility and usage notes

* If used with the Atomic Echo Base, all pins on the right side of the Atomic Battery Base (5P) must be cut. If used with Atom-Echo, the G33 pin connection must be cut. In these combinations, the Atomic Battery Base is only used for power supply and cannot read the battery voltage status.

* When the power switch is turned ON, the battery boosts to 5V to power the Atom. When the power switch is turned OFF, the battery can be charged via the Atom USB interface. The boost and charging states need to be manually switched with the switch and cannot occur simultaneously.

* 4-level battery display (red LED) for battery status, and charging status is displayed (blue LED: charging, green LED: fully charged).

Features

* Portable 5V Power Supply for Atom series

* High-Efficiency Boost Converter (ETA9085E10)

* Smart Charging Chip (LGS4056HDA)

* 200mAh Rechargeable Battery

* LED Battery Level Indicator

* One-Touch Mode Switch (Boost/Charge)

* Ideal for IoT & Portable Devices

Specifications

Charging/Discharging Chip LGS4056HDA

Boost Converter Chip ETA9085E10

Battery Level Indicator 4-level display (red LED)

Charging Indicator Charging (blue LED) Fully charged (green LED)

Battery Capacity DC-3.7V @ 200mAh

Battery Circuit Detection Voltage divider detection circuit

Charging Current DC-5V @ 223mA

Maximum Boost Output Current DC-5V @ 300mA

Standby Current (Switch OFF) DC-4.2V @ 2.55uA

Operating Temperature 0~40°C

Operating Current DC-4.2V @ 39.55mA

Product Size 24.0 x 24.0 x 23.95mm

Product Weight 9.4g

Resources

* Product Wiki

* Schematic

* ETA9085 datasheet

* LGS4056H datasheet

* Example Arduino code

Package Contents

* 1x Atomic Battery Base