How to Use Lithium Battery : Examples, Pinouts, and Specs

Design with Lithium Battery in Cirkit Designer

Introduction

The Lithium Battery (Manufacturer: JTES, Part ID: JTESC00011) is a rechargeable power source that utilizes lithium-ion technology to store and release energy. Known for its high energy density, lightweight design, and long cycle life, this battery is widely used in various electronic applications. It is an ideal choice for portable devices, electric vehicles, and renewable energy systems.

Explore Projects Built with Lithium Battery

Battery-Powered Circuit with Ceramic Capacitor

This circuit consists of a 18650 Li-ion battery connected to a ceramic capacitor. The positive terminal of the battery is connected to one pin of the capacitor, and the negative terminal is connected to the other pin, forming a simple energy storage and filtering circuit.

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Battery-Powered Adjustable Voltage Regulator with Li-ion 18650 Batteries and BMS

This circuit is a power management system that uses four Li-ion 18650 batteries connected to a 2S 30A BMS for battery management and protection. The system includes step-up and step-down voltage regulators to provide adjustable output voltages, controlled by a rocker switch, and multiple DC jacks for power input and output.

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Solar-Powered Battery Charging System with Voltage Display and Regulation

This is a solar-powered battery charging and power supply circuit with a battery management system for 18650 Li-ion batteries. It includes a voltage regulator for stable power delivery to fans, a visual power indicator LED with a current-limiting resistor, and a voltmeter to monitor battery voltage. A rocker switch controls the fans, and diodes are used to prevent reverse current flow.

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Battery-Powered High Voltage Generator with Copper Coil

This circuit consists of a Li-ion battery connected to a step-up power module through a rocker switch, which boosts the voltage to power a ring of copper gauge with an aluminum frame. The rocker switch allows the user to control the power flow from the battery to the step-up module, which then supplies the boosted voltage to the copper ring.

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Common Applications and Use Cases

Consumer Electronics: Smartphones, laptops, tablets, and cameras.
Electric Vehicles (EVs): Powering electric cars, scooters, and bicycles.
Renewable Energy Systems: Energy storage for solar panels and wind turbines.
IoT Devices: Sensors, trackers, and other low-power devices.
Robotics: Powering motors and control systems in robots.

Technical Specifications

The following table outlines the key technical details of the JTES Lithium Battery (JTESC00011):

Parameter	Value
Nominal Voltage	3.7V
Capacity	2000mAh
Maximum Charge Voltage	4.2V
Discharge Cut-off Voltage	2.5V
Maximum Discharge Current	2A
Charging Current	1A (Standard), 2A (Maximum)
Energy Density	250 Wh/kg
Operating Temperature	-20°C to 60°C
Cycle Life	≥ 500 cycles
Dimensions	18mm (Diameter) x 65mm (Length)
Weight	45g

Pin Configuration and Descriptions

The JTES Lithium Battery typically has two terminals:

Pin	Label	Description
1	Positive (+)	The positive terminal for charging/discharging.
2	Negative (-)	The negative terminal for charging/discharging.

Note: Ensure proper polarity when connecting the battery to avoid damage.

Usage Instructions

How to Use the Component in a Circuit

Connection:
- Connect the positive terminal of the battery to the positive input of your circuit.
- Connect the negative terminal to the ground (GND) of your circuit.
- Use a battery holder or soldered connections for secure mounting.
Charging:
- Use a dedicated lithium-ion battery charger with a constant current/constant voltage (CC/CV) charging profile.
- Ensure the charging voltage does not exceed 4.2V and the charging current is within the specified range (1A standard, 2A maximum).
Discharging:
- Do not allow the battery voltage to drop below 2.5V to prevent damage.
- Use a protection circuit module (PCM) or battery management system (BMS) to monitor and protect the battery during operation.
Safety Precautions:
- Avoid short-circuiting the terminals.
- Do not expose the battery to fire, water, or extreme temperatures.
- Store the battery in a cool, dry place when not in use.

Example: Connecting to an Arduino UNO

The JTES Lithium Battery can be used to power an Arduino UNO via its VIN pin. Below is an example circuit and code:

Circuit:

Connect the positive terminal of the battery to the VIN pin of the Arduino UNO.
Connect the negative terminal to the GND pin of the Arduino UNO.
Use a 5V voltage regulator if the battery voltage exceeds the Arduino's input voltage range.

Code:

// Example code to blink an LED using an Arduino UNO powered by a lithium battery
// Ensure the battery voltage is regulated to avoid damaging the Arduino

const int ledPin = 13; // Pin connected to the onboard LED

void setup() {
  pinMode(ledPin, OUTPUT); // Set the LED pin as an output
}

void loop() {
  digitalWrite(ledPin, HIGH); // Turn the LED on
  delay(1000);                // Wait for 1 second
  digitalWrite(ledPin, LOW);  // Turn the LED off
  delay(1000);                // Wait for 1 second
}

Important Considerations and Best Practices

Always use a protection circuit to prevent overcharging, over-discharging, and short circuits.
Avoid puncturing or physically damaging the battery.
Dispose of the battery responsibly according to local regulations.

Troubleshooting and FAQs

Common Issues and Solutions

Issue	Possible Cause	Solution
Battery not charging	Charger not compatible or faulty	Use a charger designed for lithium-ion batteries with CC/CV charging profile.
Battery overheating during use	Excessive current draw or short circuit	Reduce the load or check for short circuits in the circuit.
Rapid capacity loss	Overcharging or deep discharging	Use a protection circuit and avoid exceeding voltage limits.
Battery not powering the circuit	Incorrect polarity or loose connections	Verify polarity and ensure secure connections.

FAQs

Can I use this battery in series or parallel configurations?
- Yes, but ensure all batteries are of the same type, capacity, and charge level. Use a BMS for safety.
How do I know when the battery is fully charged?
- The charger will typically indicate full charge when the current drops to a minimal level at 4.2V.
What happens if the battery is over-discharged?
- Over-discharging can permanently damage the battery. Use a PCM or BMS to prevent this.
Can I use this battery in extreme temperatures?
- The battery operates best between -20°C and 60°C. Avoid using it outside this range to prevent performance degradation.

By following this documentation, users can safely and effectively integrate the JTES Lithium Battery (JTESC00011) into their projects.