LG MJ1 18650 3500mAh 10A Lithium Ion Battery Cell
⚡ LG MJ1 18650 3500mAh Battery | High Energy Density & Long Cycle Life Power Solution
The LG MJ1 18650 3500mAh 10A Lithium-Ion Battery Cell is a premium rechargeable cell designed for high-energy, long-runtime, and stable-performance applications. Featuring an exceptionally high energy density of 259.3Wh/kg, smooth discharge curve, and long cycle life, this cell is ideal for e-bikes, power tools, drones, flashlights, and portable electronics. With 1C charge rate, 10A continuous discharge, and 400+ cycle durability, it offers a reliable power foundation for both industrial and consumer-grade devices.
LG MJ1 Battery Specification
Model: LG MJ1 18650
Rated Capacity: 3500mAh
Energy: 12.705Wh
Energy Density: 259.3Wh/kg
Minimal Capacity: 3350mAh
Rated voltage: 3.63V
Discharge Cut-off Voltage: 2.5V
Charge Cut-off Voltage: 4.2V
Cycle Life: More than 400 cycles
Dimensions: Φ18*65mm
Weight: 49g
Internal Resistance: Less than 80mΩ
Standard Discharge Current: 0.2C (700mA)
Standard Charge Current: 0.5C (1750mA)
Max Continuous Discharge Rate: 3C (10A)
Max Continuous Charge Current: 1C (3500mA)
Charging Temperature: 0 to 45℃;
Discharge Temperature: -20 to 65℃
Storage Temperature:
- -20℃~25℃: 12 months
- -20℃~45℃: 3 months
- -20℃~60 ℃: 1 month
Key Features — LG 18650 Batteries
🔋 High Energy Density – Up to 259.3Wh/kg
The LG MJ1 18650 cell boasts a specific energy of 259.3Wh/kg, setting a benchmark for compact, lightweight, high-performance battery cells. This superior energy density supports extended runtime and enhanced efficiency, making it the preferred choice for energy-demanding applications such as electric bikes, UAVs, and high-end flashlights.
⚙️ 3500mAh Large Capacity for Extended Operation
With a nominal capacity of 3500mAh, the MJ1 cell offers long-lasting endurance, reducing charging frequency and improving user convenience. Its optimized chemical formulation ensures low self-discharge, steady output voltage, and consistent runtime across multiple cycles.
📉 Smooth and Stable Voltage Discharge Platform
Unlike conventional 3.7V Li-ion cells, the LG MJ1 features a slightly lower and flatter voltage platform, producing a linear discharge curve. This minimizes voltage fluctuations, protecting sensitive electronics from power instability and ensuring consistent device performance throughout the discharge cycle.
🔁 Long Cycle Life – 400+ Cycles Retaining 80% Capacity
Engineered for endurance, the MJ1 retains 80% of its original capacity even after 400 charge/discharge cycles. This translates to years of reliable use, lower maintenance costs, and higher return on investment for power systems relying on rechargeable lithium technology.
⚡ 10A High Discharge Rate, 1C Charging Capability
The cell supports continuous 10A discharge and 1C charge rates, providing balanced performance between energy and power output. This allows it to efficiently power both steady-load devices and high-drain equipment, maintaining stability under demanding operational conditions.
🧩 Custom Battery Pack Support
We offer customized battery solutions built with LG MJ1 cells, including:
🔌 Voltage & Capacity Configuration – From 1S to multi-series packs.
🧱 Mechanical Design – Custom size, enclosure, and structure.
🏷️ OEM Services – Custom printing, shrink sleeve color, labels, and packaging.
🔋 Connector & Plug Options – JST, XT, Molex, or customer-specified terminals.
Whether for consumer devices, industrial equipment, or OEM assembly, our engineering team can tailor every detail to your application.
🛠️ Typical Applications
🚴♂️ Electric Bicycles (E-Bikes)
🚁 Drones & UAVs
🔦 High-Performance Flashlights
🔋 Portable Power Banks
🔧 Power Tools & Equipment
🧠 Smart Electronics & IoT Devices
| Model | Brand Country | Nominal Voltage (V) | Nominal Capacity (mAh) | Min Capacity (mAh) | Internal Resistance (mΩ) | Max Charge (A) | Max Discharge (A) | Cycle Life (≥80%) | Weight (g) |
|---|---|---|---|---|---|---|---|---|---|
| LG MJ1 | South Korea | 3.63 | 3500 | 3400 | ≤35 | 3.5 | 10 | 400+ | 48 |
| Samsung INR18650-35E | South Korea | 3.6 | 3500 | 3350 | ≤35 | 2.0 | 8 | 300 | 48 |
| Panasonic NCR18650GA | Japan | 3.6 | 3450 | 3350 | ≤30 | 2.0 | 10 | 300 | 48 |
| Molicel INR18650-M35A | Taiwan | 3.6 | 3500 | 3400 | ≤25 | 3.5 | 10 | 500 | 47 |
| Sony/Murata US18650VC7 | Japan | 3.6 | 3500 | 3400 | ≤30 | 2.0 | 8 | 300 | 48 |
💡 Key Advantages
✅ High Energy Density: 257.1Wh/kg for extended runtime.
✅ High Capacity: 3500mAh large capacity ideal for long-use devices.
✅ Smooth Voltage Curve: Ensures stable performance and system reliability.
✅ Durable Lifespan: Over 400 cycles with ≥80% capacity retention.
✅ 10A Discharge Capability: Excellent for power-hungry applications.
✅ Customizable: OEM & ODM support for voltage, capacity, and appearance.
🧠 Buying Considerations
When selecting the LG MJ1 18650 battery, pay attention to:
Authenticity – Ensure original LG Chem cells (avoid rewrapped or recycled versions).
Application Requirements – Verify voltage, current, and thermal specifications.
Protection Circuit – Consider PCM/BMS for safety in battery packs.
OEM Needs – For production use, request custom labeling and terminal types.
❓ Frequently Asked Questions (FAQ)
Q1: Is LG MJ1 suitable for high-drain devices?
A: Yes. With 10A continuous discharge, it supports moderate to high-drain devices like e-bikes and flashlights.
Q2: What makes the MJ1 better than the Samsung 35E?
A: The MJ1 offers a flatter discharge curve, higher stability, and slightly better cycle retention under 10A load.
Q3: Can I charge the MJ1 cell with a standard Li-ion charger?
A: Yes, as long as the charger follows CC/CV charging at 4.2V cutoff and does not exceed 3.5A charge rate.
Q4: How should these cells be stored?
A: Store at 40–60% charge in a cool (15–25°C), dry environment for best long-term preservation.
Q5: Do you provide OEM/ODM battery pack solutions?
A: Yes, we offer custom-built packs with MJ1 cells, including BMS integration, connectors, sleeves, and labeling.
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