| Quantity: | |
|---|---|
Engineered specifically to meet the rigorous energy demands of continuous air circulation devices, this 7.4V 2000mAh rechargeable lithium battery pack (Model: 505060-2S) delivers a reliable and sustained power foundation for your hardware. Utilizing Grade A lithium polymer cell technology, this unit packages two 3.7V rated voltage cells in a precise series configuration, resulting in a highly dense energy reservoir that remains remarkably lightweight. When handling the battery, you will notice the smooth, tightly sealed industrial-grade insulation wrap that protects the internal chemistry while maintaining a slim profile. With a nominal capacity of 2000mAh, it provides the necessary endurance to keep motorized components running at optimal speeds without premature voltage drops. The battery pack integrates a highly sensitive protection board and arrives standard with secure connecting cables and precisely molded terminals. This configuration offers multiple active defense mechanisms, including overcharge, over-discharge, overcurrent, and short-circuit protection, ensuring safe operation even during demanding discharge cycles. Its compact physical footprint—measuring exactly 60mm in length, 50mm in width, and 10.5mm in thickness—makes it an exceptionally practical choice for portable electronic devices, wearable cooling gear, and spatial-constrained engineering projects where every millimeter matters.
Extended Cycle Life & Grade A Cells: Delivers a true 2000mAh capacity utilizing carefully selected Grade A lithium polymer cells. This internal architecture ensures a remarkably low self-discharge rate and hundreds of stable charge-discharge cycles. By maintaining capacity retention over extended periods, it directly reduces replacement frequency and lowers long-term maintenance costs for deployed devices.
Robust Physical Protection & Smart PCB: Features a reinforced, impact-resistant outer encapsulation combined with an intelligent printed circuit board (PCB). This dual-layer defense mechanism actively prevents overcharging, over-discharging, overcurrent, and short circuits. The tight wrapping also shields the internal components from mechanical stress and vibrations during daily field operation.
Extreme Temperature Resilience: Engineered to maintain consistent discharge rates across a demanding thermal spectrum. The pack operates efficiently from freezing conditions of -20°C up to scorching environments of +60°C. This exceptional thermal stability makes it an ideal power source for outdoor wearable gear and industrial instruments exposed to unpredictable climates.
Seamless Integration & Customization: Shipped ready-to-install with pre-attached, heat-resistant silicone wiring and standardized connectors that provide a satisfying, secure click upon connection. We offer flexible customization services for wire lengths, terminal types (such as JST or PH2.0), and physical pack dimensions to match your specific engineering blueprints seamlessly.
Certified Global Compliance: Every unit undergoes rigorous automated assembly and comprehensive factory inspection before shipment. Meeting stringent international standards including UN38.3, MSDS, and CE, this power pack ensures smooth cross-border logistics, regulatory compliance, and peace of mind for your global distribution channels.
Product Model: | 505060-2S |
Nominal Voltage: | 7.4V |
Full Charge Voltage: | 8.4V (±0.05V) |
Nominal Capacity: | 2000mAh (0.2C discharge) |
Cell Configuration: | 2 x 3.7V lithium polymer cells in series |
Charging Voltage: | 8.4V (Constant Voltage, Constant Current) |
Charging Current: | Standard 1A (0.5C), Maximum recommended 2A (1C) |
Discharge Cut-off Voltage: | Protection board activation: approx. 5.6V-6.0V (single cell 2.8V-3.0V) |
Continuous Discharge Current: | Standard 2A (1C), higher rates can be customized according to cell specifications |
Instantaneous Peak Current: | Depends on cell and protection board specifications (typically up to 3-4A) |
Internal Resistance: | ≤80mΩ (entire battery pack, typical value) |
Dimensions: | Approximately 60mm (length) × 50mm (width) × 10.5mm (thickness) (including protection board) |
Weight: | Approximately 40g (typical value) |
| Output Interface: | Standard with terminal cable (please confirm specific terminal model) |
| Protection Functions: | Overcharge, over-discharge, overcurrent, short circuit protection |
| Operating Temperature: | Charging: 0°C ~ +45°C / Discharging: -20°C ~ +60°C |
| Storage Temperature： | -20°C ~ +45°C (recommended to store at half charge) |
This 7.4V 2000mAh polymer lithium battery pack is specifically engineered to power devices requiring sustained energy draw and compact integration. Its lightweight nature, combined with a stable voltage platform, makes it an indispensable component across multiple demanding sectors:
Wearable Cooling & Consumer Electronics: Serves as the primary power engine for waist-mounted fans, portable Bluetooth speakers, recreational drones, model aircraft, electric toys, handheld camera gimbals, and professional photography fill lights, ensuring long operational windows.
Smart Hardware & IoT Devices: Provides reliable energy for wireless monitoring equipment, automated smart robots, mobile POS machines, and remote data acquisition terminals that require uninterrupted power in the field.
Medical & Health Equipment: Integrates smoothly into portable muscle massagers and handheld medical testing instruments where consistent voltage and safe operation are non-negotiable.
Prototyping & Maker Projects: Acts as a dependable power supply for microcontroller development boards (including Arduino and Raspberry Pi ecosystems), electronic competition builds, graduation projects, and custom personal inventions.
Emergency Backup Solutions: Functions as a critical emergency power reserve for small-scale devices requiring immediate mobile power when primary sources fail.
 |  |
Strict Charging Requirements: Always utilize a dedicated, parameter-matched lithium-ion battery charger featuring an output voltage of 8.4V and a CC/CV (Constant Current/Constant Voltage) charging mode. Direct charging with non-regulated power supplies, modified adapters, or lead-acid battery chargers is strictly prohibited and will cause irreversible chemical damage.
Handling Prohibitions: Do not subject the battery unit to mechanical abuse. Never disassemble, crush, puncture, or incinerate the pack, and ensure the terminals are never short-circuited. Keep the unit entirely away from open flames and never immerse it in water or other liquids.
Operating Environment Limits: Avoid deploying or storing the battery in environments exceeding 60°C or dropping below -20°C. Furthermore, keep the unit away from areas with excessive humidity, strong static electricity fields, or direct proximity to heat sources to maintain internal stability.
Abnormal Condition Protocols: If the battery exhibits any physical swelling, chemical leakage, abnormal heat generation, emits an unusual odor, or suddenly fails to accept a charge, immediately cease operation. Isolate the unit in a fire-safe location and contact a qualified technician for proper disposal or assistance.
Long-Term Storage & Transportation: For storage periods exceeding one month, condition the battery to approximately 50%-60% of its total capacity (a voltage reading of roughly 7.6V) and place it in a cool, dry environment. During transit, verify that all terminals are properly insulated to prevent accidental short circuits caused by shifting cargo.
Catering specifically to large-scale procurement demands, our manufacturing facility operates with advanced automation to guarantee consistent yield and uncompromised structural integrity across every batch. We understand that stable production capacity and rapid supply chain response are critical to maintaining your assembly line schedules. By implementing strict quality control checkpoints from raw material sourcing to final packaging, we ensure that each 7.4V 2000mAh battery pack performs identically to the approved prototype. Furthermore, we offer tiered pricing structures and dedicated account management to support your inventory planning, ensuring that you receive the exact volume required, precisely when your production schedule demands it.
No, direct charging via a standard USB port is not possible. This is a 7.4V battery pack (reaching 8.4V when fully saturated), whereas standard USB ports only output a 5V voltage. This 5V output is fundamentally insufficient to overcome the battery's internal resistance for charging. You must utilize a dedicated lithium battery balance charger specifically rated for an 8.4V output to ensure safe and complete charging.
The built-in protection board serves as the critical safety manager for the entire power unit. It executes four primary directives: it instantly cuts off the charging current when a single cell's voltage exceeds the 4.25V-4.3V threshold (overcharge protection); it halts the discharge process if the cell voltage drops below 2.8V-3.0V (over-discharge protection); it severs the circuit if the discharge current spikes beyond the engineered limit (overcurrent protection); and it immediately disconnects the power flow if the positive and negative terminals cross (short-circuit protection).
You can estimate the theoretical operational time using a straightforward formula: Theoretical Battery Life (in hours) ≈ Battery Capacity (in Ah) divided by the Average Device Operating Current (in A). For instance, since this pack offers 2Ah (2000mAh), if your specific hardware draws an average current of 0.5A, the theoretical runtime would be approximately 4 hours. Please note that real-world performance will slightly vary based on ambient temperature and dynamic power consumption spikes.
Unlike older nickel-metal hydride (NiMH) technology, this modern lithium polymer pack does not require any rigorous activation cycles. Upon receiving the shipment, simply verify that the resting voltage is within normal parameters. While it is ready for immediate deployment, we highly recommend executing one complete charge cycle (until your charger's indicator signals full) prior to its first heavy use to calibrate the cells and ensure maximum initial performance.
If you anticipate keeping the battery out of rotation for more than one month, place it in a climate-controlled, dry environment away from direct sunlight. Before storage, condition the charge level to roughly 50%-60% of its total capacity, which correlates to a voltage reading of approximately 7.6V. We strongly advise checking the voltage levels every 3 to 6 months; if it drops below 6V, apply a brief maintenance charge to bring it back to 7.6V, preventing irreversible over-discharge damage.
Absolutely. We provide comprehensive customization services tailored to your specific engineering requirements. This includes modifying the gauge and length of the silicone wiring, as well as terminating the cables with your preferred connector types (such as JST-XH, JST-PH, Molex, XT30, or T-plugs). Please communicate your exact schematic requirements to our technical sales team prior to finalizing your procurement order.
Disclaimer: This energy storage product is classified as a hazardous material, and handlers must possess fundamental electronic safety knowledge. The manufacturing entity holds no liability for property damage, personal injury, or operational accidents resulting from improper installation, unauthorized modification, or general misuse of this unit. Always adhere to established lithium battery safety protocols.
