Battery kit 3.7V 520mAh

Introduction

Battery kit-3.7V 520mAh contains two items: a 520mAh lithium-ion battery and a battery power detector to measure the power remain in a li-ion battery.

The li-ion battery is very slim, light and cost effective. It output 3.7 V voltage(nominal). You can also charge it with a specialized charger which has maximum input current 520 mA and maximum input voltage 4.2V. This battery comes with pre-attached JST 1.0 connector which is handy to click in and out. It also has built-in overcurrent protection to protect against output short circuit. Although, please still take caution and do not abuse the battery in usage. Never charge or use it unattended.

The battery power detector can detect the input voltage range of 3–4.2 volts. There are three JST sockets (JST 1.0, JST 2.0 and JST 2.0) and two battery-soldering pads which will adapt to those batteries with a different connector. As you connect a battery to this battery power detector, the on-board four LEDs will indicate remaining power in percentage (0–25%, 26–50%, 51–75%, 76–100%). Another LED will be on if you plug the connector of battery in the wrong way.

Note that there is only one battery reliable to be tested at the same time.

Note that it will damage this battery power detector as the input voltage is above 9 volts.

Note that never use the battery when it is being charged.

Version Tracker

Product version	Release date	Support status	Notes
Battery kit-3.7V 520 mAh(first version)	May 2016	Supported	None

Features

For battery

For Pre-attached JST 1.0 connector
Short circuit protection for output circuit
Cost-effective

For battery power detector

Visual indication to remaining power of a battery
Different JST sockets for different battery connectors

Specifications

For battery

Item	Value
Capacity	520 mAh
Nominal output voltage(DC)	3.7 volts
Connector	JST 1.0
Maximum Charge Current	520 mA
Protection	Short circuit protection for output circuit
Weight	11 g
Dimensions	50(width)×2.5(height)×41(depth) mm

For battery power detector

Item	Value
Input voltage	3 – 4.2V
Operating current	15 mA
Indication manner	Four LEDs(we will detail it later)
Sockets	Three sockets for different battery connector and two battery-soldering pads(we will detail it later)
Dimensions	30(width)×25(depth) mm
CN1185	Datasheet
Weight	3.2 g
Notes	Only connect a single battery to this module; The input voltage to this module should less than 9 volts, or that will damage this module.

Platform supported(only for battery)

Platform	Seeeduino/Arduino	Rasberry Pi	Beaglebone	LinkIt ONE
Supported status	Supported	Not supported	Supported(only with Grove Base Cape for Beaglebone)	Not supported
Notes	If no version number is not represented for a specific platform, it means this product support all versions within this platform.

Hardware Overview

This section shows descriptions for components on batter power detector.

CN1185, a voltage monitoring circuit.
Battery-soldering pads, to solder battery’s leads on.

Package includes(main parts)

Getting Started

Connect battery and battery power detector as following image. You can see LEDs are on indicates actual power remains.

Resources

Help us make it better

Welcome to the new documentation system of Seeed Studio. We have made a lot of progress comparing to the old wiki system and will continue to improve it to make it more user friendly and helpful. The improvement can't be done without your kindly feedback. If you have any suggestions or findings, you are most welcome to submit the amended version as our contributor via Github or give us suggestions in the survey below, it would be more appreciated if you could leave your email so that we can reply to you. Happy Hacking!