3.7V 18650 1200mAh 10C Lithium Ion Battery Cell
Summary of 18650 1200mAh 10C Rechargeable 3.7V Li-ion Battery
3.7V 18650 1200mAh 10C Lithium Ion Battery Cell is a high-performance cylindrical lithium-ion cell engineered for continuous 10C discharge, delivering stable high current output with excellent thermal control and safety. Designed for high-power battery packs, this cell features low internal resistance, high consistency, and a built-in pressure relief valve (CID) to ensure safe operation in demanding multi-series and multi-parallel configurations. With full customization and OEM support, it is an ideal choice for professional energy storage, power tools, robotics, and industrial applications.
18650 Rechargeable Battery 1200mAh Specification
Model: 18650
Rated capacity: 1200mAh
Energy: 4.44Wh
Energy Density: 123.33Wh/kg
Minimal Capacity: 1150mAh
Rated voltage: 3.7V
Discharge Cut-off Voltage: 2.75V
Charge Cut-off Voltage: 4.2V
Cycle Life: More than 500 cycles
Dimensions: Φ18*65mm
Weight: 36g
Internal Resistance: Less than 25mΩ
Standard Discharge Current: 0.2C (240mA)
Standard Charge Current: 0.2C (240mA)
Max Continuous Discharge Rate: 10C (12A)
Max Continuous Charge Current: 1C (1200mA)
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 – Lithium Ion Battery 3.7 V 1200mAh 18650
⚡ Continuous 10C High-Rate Discharge Performance
This 18650 lithium-ion cell supports 10C continuous discharge, enabling rapid energy release for high-load devices. Delivers strong and stable current under heavy load, maintains voltage stability during continuous discharge. Ideal for motors, power tools, and high-drain electronics.
🌡️ Low Internal Resistance for High Efficiency
Built with optimized electrode materials and precision manufacturing, the cell features low internal resistance, makes it less heat generation during charge and discharge, higher round-trip energy efficiency, and improve performance consistency under high current. Lower heat not only boosts efficiency but also extends cycle life and improves overall safety.
🛡️ Enhanced Safety with Built-In Pressure Relief Valve (CID)
Safety is a core design priority. Each cell integrates a current interrupt device (CID) with a pressure relief valve inside the cell. Automatically activates during short circuit, overcharge, or abnormal pressure rise, instantly cuts off current to prevent thermal runaway, releases internal pressure to avoid cell rupture or explosion. This multi-layer protection significantly reduces risk in high-power and multi-cell battery systems.
🔗 High Cell Consistency for Battery Pack Assembly
The cell is manufactured under strict quality control to ensure excellent cell-to-cell consistency, which is critical for battery packs. Stable capacity and internal resistance distribution, reduce imbalance in series and parallel configurations, improve pack-level safety, lifespan, and reliability. Perfectly suited for multi-series and multi-parallel battery packs used in professional and industrial applications.
🧩 Flexible Customization & OEM Support
Cestpower offer full custom battery cell customization to meet diverse project requirements:
Custom voltage, capacity, and discharge rate (C-rate)
Optimized cycle life for specific use cases
Optional PVC sleeve colors
OEM / private labeling support
🚀 Typical Applications
📌 This 3.7V 18650 1200mAh 10C lithium-ion battery cell is widely used in:
Power tools & electric equipment
Robotics & automation systems
High-drain battery packs
Energy storage modules
Industrial and professional electronics
❓ Frequently Asked Questions (FAQ)
Q1: What does mAh stand for?
A: mAh means milliampere-hour, which is used to describe a battery’s energy storage capacity. A higher mAh rating indicates the battery can supply current for a longer period under the same operating conditions.
A: Charging a 1200mAh 18650 battery typically takes 2 to 4 hours, depending on the charger’s current and charging method. Using a standard 0.5C–1C charge rate balances charging speed with battery safety and lifespan.
Q3: Do batteries stop charging when full?
Q4: How to tell if a lithium battery is overcharged?
A: A lithium battery may be overcharged if it becomes abnormally hot, swollen, leaking, or emits an unusual odor during or after charging. Another clear sign is a voltage exceeding the safe limit (typically above 4.2V per cell), which indicates a charging or protection failure.
Q5: Can I charge an 18650 battery with an AA charger?
A: No, you should not charge an 18650 battery with an AA charger because they use different voltages and charging algorithms. Using an AA charger can cause improper charging, leading to overheating, damage, or serious safety risks.
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