Ecompass LLP

3.7 Volt 14500 Lithium Ion Rechargeable Battery Cell without Button Tip Top - AA Size

This Standard 14500 3.7 Volt Rechargeable Li-Ion Battery without Tip Top is a single cell compact and powerful battery cell. This Li-ion battery is very convenient to install in your project where 3.7 Volt with high capacity is needed.

The Standard 14500 3.7V Rechargeable Li-Ion Battery is a source of power for various portable devices including flashlights, hobby transmitters, and receivers, etc.

This Battery can be the best Replacement to the normal Non-Rechargeable AA Battery used in many applications such as in RC Transmitter/Reciever Remote, which can make your flight driving experience very cost-effective and efficient in terms of power output than that of conventional AA batteries.

The battery terminals can be used in any compatible battery adapter/holder or it can be permanently soldered to your applications power source wires.

Features:

1. Shape: Cylindrical Battery
2. Battery Type: Lithium-Ion Battery
3. High performance and capacity
4. Flat top to suit many devices fitting

BestFire USB Type-C Rechargeable Lithium Ion Batteries for Long-Lasting Power (700mAh / 2150mAh)

Upgrade from disposable batteries with BestFire USB Type-C Rechargeable Li-ion Batteries, available in AAA 700mAh and AA 2150mAh variants. These batteries deliver a stable regulated 1.5V output, ensuring reliable performance across household and professional devices.

Featuring a built-in USB Type-C charging port, they eliminate the need for external chargers—simply plug in and recharge. With up to 1200 recharge cycles, low self-discharge, and advanced safety protection, these batteries are an eco-friendly, cost-effective power solution for everyday use.

Key Features:

• USB Type-C direct charging (no external charger needed)

• Available in AAA 700mAh and AA 2150mAh variants

• Stable regulated 1.5V output for consistent performance

• Long lifespan with up to 1200 recharge cycles

• Built-in safety protection (overcharge, over-discharge, short circuit)

• Low self-discharge for long storage life

• Eco-friendly alternative to disposable batteries

• Suitable for household and professional devices

Technical Specifications:AA Variant – 2150mAh AAA Variant – 700mAh Applications:

• Remote controls

• Wireless mouse & keyboard

• Cameras & flashlights

• Toys & clocks

• Sensors & portable electronics

• Office and home devices

Precautions:

• Use only USB Type-C cables for charging

• Do not short-circuit terminals

• Avoid exposure to water or extreme heat

• Do not use damaged batteries

• Charge before first use

1S 3.7V 1A BMS for 18650 Lithium-Ion Battery with Nickel Strip

Lithium Batteries are extremely sensitive and dangerous to use without a proper protection circuit. This BMS circuit can be easily used and installed in a 18650 Li-ion Battery. Since this is rated for a 1S battery, the operating voltage is 3.2V to 4.2V. It supports 1A of current. This is a Battery Management System circuit that monitors the charging and discharging profile of the battery. It is designed for more than 20,000 hours of operations to protect from over voltage, over current, over charge related conditions.

Pinout

• B+: Battery Positive
• B-: Battery Negative
• P+: Charge / Discharge Positive
• P-: Charge / Discharge Negative

Features: -

1. High accuracy when detecting the voltage of the battery and the charge current.
2. The terminal of the BMS circuit uses Nickel Strip
3. Protects from Battery over-voltage, over current, over charge etc.
4. Small Size board for easier fitment.

Specification: -

• Overcharge voltage: 4.25±0.05V
• Overcharge release voltage: 4.23±0.05V
• Over-discharge voltage:  2.54±0.1V
• Maximal continuous charging/discharge current:  1A – 2A

Note:

The protection board cannot be used for lithium iron phosphate batteries, hernia lamps, hand drill battery pack, electric fish battery pack, electric bicycle battery pack, buggy battery, 775 (4A) above the motor, 1W fisheye LED lamp.

3.6V 3C NMC 18650 Lithium-Ion Battery Cell (for EV) - Random Colour and Print

A 3C 3.7V 18650 cell is a rechargeable lithium-ion battery that can be charged and discharged at a rate of up to 3 times its capacity, has a nominal voltage of 3.7V, and is of the 18650 size and shape.

Features :

1. High energy density
2. High working voltage for single battery cells.
3. Pollution-free
4. Long cycle life
5. No memory effect
6. Capacity, resistance, Voltage, platform time consistency is good.
7. Good consistency and low self-discharge.
8. Lightweight, small size
9. Shape: Cylindrical Battery
10. Battery Type: Lithium-Ion Battery
11. High performance and capacity
12. Flat top to suit many devices fitting.

Applications:

1. Electric Scooter
2. Electric Bicycle
3. E-SkateBoard
4. Electric Motorcycle
5. E-WheelChair
6. Electric Tool
7. Drone
8. Electric Vehicle Etc.
9. Power Bank

Note:- This product sometimes comes with or without mah written on it, so we ship it according to the availability of the current stock.

Universal Lithium Battery Charger with USB and Type C Output

This Lithium Battery Charger is a versatile and efficient charging solution designed for 3.7V and 4.2V lithium batteries such as 18650, 14500, and 26700 cells. With support for both AC and DC input, it provides flexible charging options for home, workshop, and travel use.

Equipped with USB and Type C output ports, this charger can also function as a power source for compatible devices. Its stable output, fast charging capability, and compact design make it ideal for electronics enthusiasts, technicians, and everyday users.

Key Features

• Supports multiple lithium battery types 401350 361350 181350, 40700, 18650, 14500, 26700, 36800
• Dual input support AC and DC power.
• Stable 4.2V charging output.
• Fast charging current up to 2.4A.
• USB and Type C output ports for additional functionality.
• Compact and portable design.
• Safe and reliable charging performance.
• Suitable for home and professional use.

Technical Specifications Applications

• Charging lithium ion batteries.
• Electronics repair and maintenance.
• DIY battery projects.
• Power backup systems.
• Portable battery charging.
• Workshop and lab use.
• Field work and travel charging.

Precautions

• Use only compatible lithium batteries.
• Do not charge damaged or swollen batteries.
• Ensure correct polarity while inserting batteries.
• Do not expose to moisture or water.
• Avoid overloading the charger.
• Disconnect after full charge.
• Keep away from children.

18650x12 4.2V Lithium NiCD Battery Charger with LCD For AA AAA 18650 16340 14500 Cells

The HD-8994A Smart 12-Slot Battery Charger is a powerful and versatile charging solution designed for 18650, 26650, and other lithium batteries. With 12 independent charging slots, it allows users to charge multiple batteries simultaneously—making it ideal for DIY projects, electronics labs, makers, and experiment setups.

Featuring a clear LCD display, this charger provides real-time monitoring of each battery’s charging status, ensuring precision and safety. Its wide input range (100–240V AC) makes it suitable for global use, while intelligent charging technology protects your batteries from overcharging and short circuits.

Whether you're working on robotics, power banks, RC projects, or electronics experiments, this charger is a reliable and efficient tool for every maker.

Key Features

• 12 independent charging slots for multiple batteries.
• Compatible with 18650, 26650 lithium batteries.
• LCD display for real-time monitoring.
• Ideal for DIY projects, makers, and experiments.
• Intelligent charging with auto cut-off protection.
• Wide input voltage 100–240V AC (global compatibility).
• High output current for faster charging.
• Overcharge, overheat, and short-circuit protection.
• Durable and user-friendly design.
• Perfect for labs, workshops, and hobby use.

Technical Specifications Applications

• DIY electronics projects.
• Maker labs and experimentation setups.
• Battery charging for robotics and RC projects.
• Power bank and portable device development.
• Workshop and industrial battery charging.
• Electronics repair and testing.
• Educational STEM experiments.
• Backup battery systems.

Precautions

• Use only supported lithium batteries.
• Insert batteries with correct polarity.
• Do not mix battery types or capacities.
• Keep away from water and heat.
• Do not leave charging unattended for long periods.
• Use in a ventilated area.
• Disconnect power when not in use.

12V 16.8V 25V Electric Drill Charger Adapter

The Electric Drill Charger Adapter (12V / 16.8V / 25V) is a versatile power adapter designed for charging cordless drill and electric screwdriver batteries. Compatible with multiple voltage ranges, this charger is suitable for Li-ion battery packs commonly used in portable drill machines.

Built with stable output regulation and protection circuitry, it ensures safe and efficient charging while protecting batteries from overcharging, overheating, and short circuits. The compact and lightweight design makes it convenient for home use, workshops, and on-the-go applications.

Ideal as a replacement or spare charger, this adapter supports a wide range of drill models (depending on connector compatibility), making it a practical choice for DIY users and professionals.

Key Features

• 🔋 Multi-Voltage Support – Compatible with 12V, 16.8V & 25V battery systems

• ⚡ Efficient Charging – Stable DC output for reliable battery charging

• 🛡️ Built-in Protection – Overcharge, overcurrent & short-circuit protection

• 🔌 Universal Adapter Design – Suitable for many cordless drill models

• 📦 Compact & Lightweight – Easy to carry and store

• 🔧 Ideal Replacement Charger – For damaged or lost adapters

Specifications

• Input Voltage: 100–240V AC (universal input)

• Output Voltage Options: 12V / 16.8V / 25V DC

• Output Type: DC regulated output

• Battery Type: Li-ion (commonly supported)

• Connector Type: DC plug (size may vary by model)

• Protection: Over-voltage, over-current, short-circuit

Applications

• Cordless drill charging

• Electric screwdriver battery charging

• Workshop and DIY tools

• Replacement charger for power tools