Description
MJ1 18650 Battery – High-Capacity Lithium-Ion Power Cell
Overview
The MJ1 18650 Battery is a premium rechargeable lithium-ion power cell, designed for applications requiring high capacity and efficient energy output. With a 3500mAh capacity and a 10A continuous discharge rate, this battery is an excellent choice for users needing long-lasting power in low-to-medium drain devices while maintaining reliable performance.
Key Features
✅ High Capacity: 3500mAh ensures extended runtime for devices requiring long-lasting power.
✅ Moderate Discharge Rate: 10A continuous discharge, making it ideal for low-to-medium drain applications.
✅ Lithium-Ion Chemistry: Stable and efficient, providing consistent energy output.
✅ Rechargeable & Durable: Supports multiple charge cycles with minimal capacity loss.
✅ Compact 18650 Size: Universally compatible with various electronic devices.
Specifications
| Specification | Details |
|---|---|
| Brand | |
| Model | MJ1 |
| Battery Type | 18650 |
| Capacity | 3500mAh |
| Nominal Voltage | 3.6V |
| Full Charge Voltage | 4.2V |
| Discharge Cutoff Voltage | 2.5V |
| Continuous Discharge Rate (CDR) | 10A |
| Rechargeable | Yes |
| Protected | No (Unprotected cell – use with proper safety measures) |
| Cycle Life | ~300-500 charge cycles |
| Diameter | 18.3mm |
| Length | 65.0mm |
| Weight | ~49g |
Applications
The MJ1 is a versatile lithium-ion battery commonly used in various low-to-medium drain applications, including:
🔋 Flashlights – Great for high-efficiency LED torches requiring extended runtime.
🔋 Battery Packs – Often used in custom packs for long-duration power needs.
🔋 Power Banks – Ideal for portable power solutions due to high capacity.
🔋 Laptops & Electronics – Suitable for energy-dense applications requiring extended battery life.
🔋 E-Bikes & Electric Scooters – Frequently used in DIY battery packs for electric mobility.
🔋 Medical Devices – Used in certain portable medical equipment for long-lasting performance.
Safety Guidelines & Warnings
⚠️ IMPORTANT SAFETY NOTICE ⚠️
Lithium-ion batteries require proper handling and safety precautions to avoid hazards. Failure to follow safety guidelines may result in fire, explosion, serious injury, or property damage.
General Safety Guidelines
✔ Only purchase and use if you have proper lithium-ion battery safety knowledge.
✔ Always charge in or on a fire-resistant surface—never leave batteries charging unattended.
✔ Use only a compatible smart charger designed specifically for lithium-ion batteries.
✔ Store batteries in a protective case—never carry them loose in a pocket, bag, or purse.
✔ Keep away from metal objects (keys, coins, tools) to prevent short circuits.
✔ Use only within manufacturer-listed specifications and in protected battery packs.
✔ Resellers must provide these warnings to all customers.
🚫 Prohibited Uses & Handling
⛔ DO NOT use this battery in e-cigarettes, vaporizers, or similar unapproved devices.
⛔ DO NOT mix old and new, or used and unused batteries.
⛔ DO NOT short circuit, puncture, cut, crush, incinerate, or modify the battery.
⛔ DO NOT use if the battery wrapper is torn or damaged in any way.
⛔ DO NOT overcharge or over-discharge—this can lead to battery failure.
⛔ DO NOT expose the battery to liquids, extreme heat, or direct sunlight.
⛔ DO NOT solder directly—only use spot welding for battery pack assembly.
⚠ User Responsibility & Risk Acknowledgment
The user assumes full responsibility for proper handling, charging, and storage.
Misuse or mishandling may result in serious injury or damage.
No guarantee of compatibility with any specific device is provided.
Usage of this battery is at your own risk.
By purchasing and using the LG MJ1 18650 Battery, you acknowledge and agree to follow all safety guidelines. Failure to comply may result in hazardous consequences. Prior knowledge of lithium-ion battery safety is required before purchase.
⚡ Stay safe and handle responsibly! 🔋