3S 11.1V 40C 1500mAh lithium battery pack for rc car/drone
Written by: GEB Engineering Team | Technical Review by: Senior Battery System Engineer | Updated: August 2026
In the era of rapidly advancing technology, efficient and reliable energy sources are crucial for both personal and commercial applications. The introduction of the 40C 3S 11.1V 1500mAh Rechargeable Lithium Battery Pack delivers significant operational advantages in the world of portable power solutions. This article will provide an in-depth look at the features and performance of this remarkable product while also educating readers about its potential applications.
At first glance, the standout specifications of the 40C 3S 11.1V 1500mAh Rechargeable Lithium Battery Pack include:
Nominal Voltage: 11.1V
Nominal Capacity: 1500mAh (0.2C discharge)
Dimensions: 3643130mm
Weight: 600g
Combination Type: 3S
Max Charge Protection Voltage: 11.1V
Charging Current: 0.2C~1C
Max Discharge Current: 20°C
Charging Cycle Life: 500 times
Working Temperature:
Charging: 0~45°C, 45~85%RH
Discharging: -20~60°C, 45~85%RH
Protection Features: Overcharge, Over-discharge, Overload, Short Circuit
Warranty: 12 months
The 40C 3S 11.1V 1500mAh Rechargeable Lithium Battery Pack offers exceptional performance by delivering a high-capacity 1500mAh nominal charge that ensures long-lasting power for various devices. Its compact dimensions (3643130mm) and lightweight design (600 grams) make it highly portable, allowing users to carry it with ease.
One of the key features of this battery pack is its robust 3S combination type, which consists of three cells connected in series. This design allows for higher voltage output and increased power density without significantly increasing the size or weight of the battery pack.
The charging capabilities of the 40C 3S 11.1V 1500mAh Rechargeable Lithium Battery Pack are equally impressive. With a max charge protection voltage of 11.1V and a variable charging current of 0.2C~1C, users can quickly and safely charge their devices. Moreover, its long charging cycle life of 500 times ensures that the battery pack remains reliable over an extended period.
Safety is a top priority for any energy storage device, and the 40C 3S 11.1V 1500mAh Rechargeable Lithium Battery Pack excels in this area. It features built-in protection against overcharging, over-discharging, overload, and short-circuiting. These safety measures ensure that the battery pack operates optimally while preventing potential damage to the connected devices.
The battery pack’s working temperature range during charging (0~45°C) and discharging (-20~60°C) further enhances its performance and versatility. The wide temperature range allows it to function efficiently under various conditions and environments, making it suitable for both indoor and outdoor applications.
In summary for OEM procurement, the 40C 3S 11.1V 1500mAh Rechargeable Lithium Battery Pack is a groundbreaking product that offers unparalleled power, performance, and safety features. Its compact size, lightweight design, and exceptional charging capabilities make it the ideal choice for powering a wide range of devices. With a 12-month warranty and extensive protection functions, users can confidently rely on this battery pack for all their portable power needs.
Custom LiPo & Lithium Battery Manufacturer – GEB
General Electronics Battery (GEB) is a lithium battery manufacturer serving international B2B customers with over 15 years of industry experience. We specialize in high-performance OEM/ODM custom battery packs for agricultural drones, FPV UAVs, industrial robots, e-bikes, and commercial energy systems.
| Evaluation Factor | Engineering Specification | Verification Method | Red Flags to Watch |
|---|---|---|---|
| Cell Sourcing & Lot Quality | Grade-A tier-1 brand or verified source cell | Original factory lot inspection sheet & OCV scan | Unverified reclaimed or mixed-lot B-grade cells |
| Cell Matching Tolerances | ΔV ≤ 5mV, ΔAC IR ≤ 2mΩ (@1kHz), ΔCap ≤ 1% | Automated sorting data before pack assembly | No screening data; directly spot-welded upon arrival |
| BMS Protection & Hardware | Overcharge, overdischarge, overcurrent, thermal cutoff | Active bench load testing & NTC calibration | Generic boards without custom threshold specifications |
| Welding & Structural Safety | Pure nickel strip, pull strength ≥ 5.0 kgf, UL94-V0 | Destructive pull-force testing & micro-section | Nickel-plated steel strips or fragile hand soldering |
| Aging & Quality Audit | 100% full charge-discharge cycle & capacity log | Automated aging cabinet logs with Pack SN | Zero aging cycle; packed immediately after welding |
Written by: GEB Engineering Team | Technical Review by: Senior RC Application Specialist | Updated: August 2026
Direct Answer: The 3S 11.1V 40C 1,500mAh lithium battery pack is engineered for competitive RC cars, boats, and drones requiring rapid burst acceleration. Equipped with a standard JST-XH balance tap and XT60 discharge connector, it supports safe 2C fast balance-charging while maintaining individual cell delta voltages below 15mV.
Engineering Guidelines & Operating Specifications
- Tailored Engineering: Custom voltage (1S–24S+), high capacity, ultra-high discharge rates (up to 150C burst), and integrated smart BMS.
- Documentation topics may include UL, CE, UN 38.3, MSDS, RoHS and ISO 9001; applicability depends on model, configuration and market.
- Fast Prototyping: Rapid sample delivery in 7–10 business days for commercial testing.
Related Technical Engineering Guides: Revolutionize Your Power Needs with the 40C 3S 11.1V 1500mAh LiPo Battery | High-Rate Racing LiPo Batteries: Discharge and Thermal Guide
Frequently Asked Questions
What is the optimal storage voltage for high-rate drone LiPo batteries?
For long-term storage exceeding 48 hours, store LiPo cells at 3.80V to 3.85V per cell (approximately 50% State of Charge) in a temperature-controlled environment between 15°C and 25°C. Storing at full charge (4.20V/cell) accelerates electrolyte decomposition and internal resistance growth.
How does operating temperature affect high C-rate continuous discharge?
Cold ambient temperatures (below 10°C) increase internal resistance and cause pronounced initial voltage sag under heavy throttle. Pre-heating battery packs to 25°C–35°C prior to flight ensures maximum burst power delivery and protects the anode from lithium plating.
What compliance certifications are mandatory for exporting commercial drone battery packs?
Air and maritime transport require certified UN38.3 test summaries, 1.2m drop test certification, and validated MSDS documentation. Commercial compliance in North America and Europe typically mandates CE (EMC/LVD), RoHS, and IEC 62133 safety verification.
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