GEB 18650 11.1V 20Ah Cylindrical Lithium-ion Battery Pack
11.1V 20Ah (222Wh) 3S8P cylindrical 18650 lithium-ion battery pack with 20A BMS, Grade-A cells, and compact PVC enclosure for medical devices, field test equipment, and robotics.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB 18650 11.1V 20Ah Cylindrical Lithium-ion Battery Pack is a professional-grade Grade-A cylindrical Lithium-ion (Li-ion) solution delivering a verified 11.1V nominal working voltage and 20,000mAh rated capacity. Assembled with precision spot-welded pure nickel busbars and dedicated cell spacing brackets, this cylindrical pack integrates natural convective heat dissipation channels, balanced BMS circuitry, and robust mechanical protection against shock and vibration.
Product Overview
The GEB 18650 11.1V 20Ah Cylindrical Lithium-ion Battery Pack is an engineered industrial solution featuring a 11.1V (3S Li-ion / 12V nominal) specification and 20.0Ah (222Wh total energy) rating. Built with Grade-A components and an integrated 20A continuous discharge (222W power rating) protective circuit, this unit ensures high reliability, thermal dissipation, and consistent electrical performance across dynamic duty cycles. Encased in a Flame-retardant blue PVC heat-shrink enclosure with epoxy insulation plates measuring 150 × 110 × 70 mm (±1.5mm) and weighing Approx. 1.2 kg (2.6 lbs), it is targeted for Portable medical electronics, robotic platforms, field test gear, DC LED lighting. Before ordering or integrating into your equipment, check the enclosure compartment space (min. 165 × 125 × 80mm). Requires dedicated 12.6V 3S lithium charger.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Nominal Rating / Power | 11.1V (3S Li-ion / 12V nominal) / 20.0Ah (222Wh total energy) |
| Enclosure & Housing | Flame-retardant blue PVC heat-shrink enclosure with epoxy insulation plates |
| Physical Dimensions & Weight | 150 × 110 × 70 mm (±1.5mm) / Approx. 1.2 kg (2.6 lbs) |
| Continuous Operating Rating | 20A continuous discharge (222W power rating) |
| Peak Surge / Pulse Limit | 40A peak pulse (≤ 5s) |
| Target Applications | Portable medical electronics, robotic platforms, field test gear, DC LED lighting |
| Standard Connectors / Terminals | XT60 / Anderson Powerpole + DC 5.5×2.1mm charging jack |
| Service Life / Endurance | ≥ 800–3,000 cycles (@ 80% DoD, 25°C) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Operating Voltage | 11.1V (3S Li-ion / 12V nominal) | Standard measurement @ 25°C standard load |
| Upper Voltage Threshold | 12.6V ± 0.05V (3S CC/CV mode) | CC/CV regulation tolerance ±0.03V–0.05V |
| Lower Cutoff / Protection | 9.0V ± 0.10V | Automatic safety cutoff threshold |
| Standard Current Rating | 20A continuous discharge (222W power rating) | Continuous rated thermal equilibrium |
| Peak Surge Tolerance | 40A peak pulse (≤ 5s) | Transient peak handling verification |
| Operating Temperature Range | -10°C to +55°C (Storage: -10°C to +35°C) | Ambient operational environmental range |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 18650 11.1V 20Ah Cylindrical Lithium-ion Battery Pack, verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 11.1V / 20Ah power curves.
- Commercial designs requiring high volumetric energy density and predictable discharge curves.
- Projects requiring batch consistency with automated barcode impedance sorting.
⚠ Operational Constraints & Limits:
- Do not discharge below minimum cutoff voltage or charge beyond 12.6V.
- Maintain operational surface temperature within -20°C to +60°C discharge (0°C to +45°C charge).
- Ensure connector polarity and pin assignment match system schematics prior to initial power-up.
First-Party Manufacturing SOP & Export Compliance
Technical Whitepapers & Engineering Guides
High-Performance Cylindrical Batteries: 16 Years of B2B Manufacturing
Technical breakdown of automated cell sorting, delta IR matching, laser welding busbars, and cycle aging protocols.
Industrial Cylindrical Batteries: QC, Aging and Test Standards
Key factory inspection criteria for cylindrical packs, thermal management, vibration testing, and BMS protection thresholds.
Energy Density vs Power Density: Why It Matters for Drones
Engineering comparison of energy density (Wh/kg) vs. power density (W/kg) in UAV batteries: how C-rate, internal resistance, and pouch vs. cylindrical cells impact flight time.
