The Long-Endurance Drone Battery offered by YIHANG, a professional drone battery manufacturer in China, for UAV platforms that need more usable energy without adding unnecessary battery weight. The battery uses high-energy-density cells and can be configured around the aircraft's voltage, capacity, discharge requirements, battery compartment, and mission profile. Cell selection, pack design, and BMS configuration can be adjusted for different long-duration UAV applications.
For extended mapping, inspection, agricultural, and other industrial missions, battery performance depends on more than rated capacity. Energy density, pack weight, discharge characteristics, cell consistency, and battery management all affect the usable flight time. YIHANG provides configurable battery packs with 6S, 8S, 12S, 14S, and 18S reference options, together with customized capacity, dimensions, connectors, C-rate, and communication functions.
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Item |
Specification |
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Product Name |
Long-Endurance Drone Battery |
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Optional Configuration |
6S / 8S / 12S / 14S / 18S (Custom) |
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Energy Density |
Up to 350Wh/kg (customizable) |
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Capacity Range |
10000mAh – 50000mAh (customizable) |
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Discharge Rate |
5C – 15C (Long Endurance Optimized) |
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Working Temperature |
-20°C to +60°C |
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Protection System |
Smart BMS Full Protection |
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Cycle Life |
800 cycles (to 80% initial capacity, tested at 25°C±2°C, 1C charge / 1C discharge, 100% DOD) |
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Communication Protocol |
RS485 / CAN (optional) |
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Certifications |
CE, RoHS, UN38.3, IEC62133 |
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Custom Service |
OEM / ODM, Full Customization |
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Manufacturer |
YIHANG |

Built-in Smart BMS with LED Indicator Panel — Real-time Monitoring, Multi-layer Protection, and Full Lifecycle Data Management.
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POUCH CELL OPTIONAL |
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Number |
BMS Function |
Description |
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1 |
Smart SOC Indication |
Four high-brightness LEDs auto-detect charge/discharge status for real-time SOC display. When powered off, short-press the button; LEDs show SOC for ~2s then turn off. |
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2 |
Battery Life Reminder |
At preset cycle count, all SOC LEDs turn red for mid-end-life warning; use cautiously |
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3 |
Smart Charge Alarm |
Monitors charging status in real-time; triggers alarm for over-voltage, over-current and over-temperature. |
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4 |
Smart Storage |
Activates automatically for long-term idle storage at high SOC; discharges to storage voltage for safe preservation. |
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5 |
Auto-Sleep |
Auto-sleep power-off when idle: 3-min delay at high SOC, 1-min delay at low SOC to conserve power. |
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6 |
Firmware upgrade |
Supports firmware upgrade via USB port connected to PC. |
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7 |
Data Communication |
Supports USB-Serial, WIFI and CAN interfaces. Retrieve real‑time battery data (voltage, current, cycle count) via USB-Serial/WIFI; CAN interfaces with flight controller for data exchange. |
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8 |
Battery Logging |
Stores full-life battery logs including cell voltage, current, temperature, cycle count and fault events; viewable via PC or mobile device. |
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9 |
Smart Balancing |
Built-in auto balancing; manual trigger available for large cell voltage gap, keeps cell voltage difference within 20mV. |




Up to 350Wh/kg is available according to the selected battery configuration. Higher energy density allows more stored energy within a controlled battery weight, which is useful when flight endurance and payload must be balanced.
The 5C–15C discharge range is intended for UAV applications that require sustained power rather than only short-duration peak output. Battery characteristics can be matched to the aircraft's continuous current demand and mission profile.
Cell selection and pack configuration are considered together to help maintain consistent voltage and discharge behavior across the intended operating range.
The integrated smart BMS provides battery protection and monitoring functions. CAN and RS485 communication are available for compatible UAV systems requiring battery status data.
6S, 8S, 12S, 14S, and 18S reference configurations are available, with customized capacity, dimensions, connectors, C-rate, and BMS functions for different UAV platforms.
The Long-Endurance Drone Battery is suitable for UAV platforms where available energy, battery weight, and sustained operating time need to be considered together.
High-capacity battery configurations can support mapping aircraft carrying cameras, LiDAR, photogrammetry equipment, and other survey payloads during extended missions.
The battery can be configured for inspection UAVs operating along transmission lines, pipelines, wind facilities, and other infrastructure where longer flight duration is required.
Capacity and discharge characteristics can be selected for agricultural drones used in spraying, spreading, and other field operations with repeated flight cycles.
The configurable battery platform can support UAVs carrying monitoring equipment, imaging systems, or other onboard electronics during extended operation.
Voltage, capacity, dimensions, connectors, and BMS functions can be adapted for fixed-wing, multi-rotor, and other specialized UAV platforms.
YIHANG selects battery configurations according to UAV voltage, current demand, payload, available installation space, and target flight duration rather than capacity alone.
6S to 18S reference options and 10000mAh to 50000mAh capacity configurations provide practical starting points for different UAV projects.
Dimensions, connectors, capacity, C-rate, BMS functions, and communication interfaces can be adapted to the target aircraft.
Battery packs are checked for capacity, charge and discharge performance, electrical connections, and other agreed specifications before shipment.

The intelligent BMS provides battery protection, monitoring, and communication functions for compatible UAV applications.
Cell and Pack Monitoring
Monitors key battery parameters such as cell voltage, temperature, and current.
Cell Balancing
Helps maintain voltage balance between cells during supported operating conditions.
SOC Monitoring
Provides battery state information through the supported monitoring interface.
Cycle Data
Records battery usage information for maintenance and battery management.
Protection Functions
Provides configured protection against conditions such as overcharge, over-discharge, overcurrent, short circuit, and over-temperature.
CAN / RS485 Communication
Battery data can be transmitted to compatible flight controllers, ground stations, or monitoring systems through CAN or RS485.
YIHANG develops and manufactures UAV battery packs through cell selection, pack assembly, BMS integration, and electrical testing. The production process is adjusted according to the selected battery configuration and application requirements.
Finished packs are checked for voltage, capacity, charging and discharging performance, connections, and other agreed technical parameters before shipment.
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Stage |
Estimated Time |
What You Need to Do |
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1. Requirement intake |
1–2 days |
Provide drone model, target flight time, payload weight, and battery bay dimensions |
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2. Specification draft |
3–5 days |
Review and approve mechanical drawing, BMS parameters, and connector type |
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3. Sample fabrication |
10–15 days |
We build 2–3 sample units per your spec |
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4. Sample validation |
7–10 days |
Perform flight tests; we share test reports and flight logs |
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5. Bulk production |
20–30 days |
Place PO; we provide weekly production updates |
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6. Final QC & shipping |
3–5 days |
Full electrical test + visual inspection per unit; QC reports per batch |

The available documentation for YIHANG Long-Endurance Drone Battery products includes CE, RoHS, UN38.3, and IEC62133 according to the applicable battery configuration and certification requirements.
UN38.3 is used for lithium battery transport testing, while other compliance documents depend on the target market and final product configuration.
Long-endurance UAV batteries need to balance energy density, battery weight, capacity, and discharge characteristics. The appropriate configuration depends on the UAV's propulsion system, payload, flight profile, and target operating time.
Reference configurations range from 10000mAh to 50000mAh. The final capacity can be customized according to the UAV's available battery space, weight limit, power demand, and target flight duration.
Reference options include 6S, 8S, 12S, 14S, and 18S, with customized configurations available for specific UAV electrical systems.
Yes. YIHANG can customize battery capacity, voltage, dimensions, connectors, C-rate, BMS functions, and communication interfaces according to the aircraft requirements.
The specified product configuration includes a smart BMS. Depending on the selected configuration, CAN and RS485 communication can be used for compatible UAV flight-control or ground monitoring systems.
The reference specification is 800 cycles to 80% of initial capacity, tested at 25°C ±2°C with 1C charging, 1C discharge, and 100% depth of discharge. Actual service life varies with operating, charging, storage, temperature, and load conditions.
Key information includes the UAV model, operating voltage, battery compartment dimensions, payload, target flight duration, continuous and peak current demand, connector requirements, and BMS communication requirements.