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36V Hailong S039-2 Ebike Battery (Samsung 18650 Cells)
Assembled with genuine Tier-1 Samsung 18650 cylindrical cells (such as 35E / 29E), the GEB 36V Hailong S039-2 Lithium Battery Pack delivers premium cycle longevity and thermal stability for 250W to 500W European and North American road, commuter, and trekking bikes. Built into the compact Hailong-1 (S039-2) profile (365×90×103mm) with a lockable mounting rail, illuminated charge status indicator, and DC2.1 charging socket.
Description
General Electronics Technology Co., Ltd. is one of the leading manufacturers and suppliers of 36V Hailong S039-2 Ebike Battery (Samsung 18650 Cells) in China. We are committed to providing high quality custom service and OEM&ODM service to global clients. Please feel free to wholesale durable lithium battery packs in stock here and get quotation from our factory.
Engineering Overview & Quick Assessment
This 36V Hailong S039-2 battery pack utilizes original Samsung 18650 cells for 250W-500W commuter electric bikes. Verify base plate connector pinout (4-pin vs 5-pin), charging port orientation, and 42.0V charger before purchasing.
Verified Engineering Specifications
| Technical Parameter | Factory Benchmark & Tolerance Range |
|---|---|
| Nominal Voltage | 36.0V (Operating Range: 30.0V - 42.0V) |
| Capacity Options | 10.4Ah (374Wh) / 13.0Ah (468Wh) / 17.5Ah (630Wh) |
| Cell Type & Origin | Genuine Grade-A Samsung SDI 18650 (35E / 29E / 26J) |
| Continuous Discharge Current | 20.0A (Supports motors up to 500W) |
| Peak Discharge Current | 40.0A (≤ 3 seconds) |
| Physical Dimensions | 365 × 90 × 103 mm (±1.0mm) |
| Pack Weight | Approx. 3.2 kg - 3.8 kg (depending on Ah configuration) |
| Enclosure Model | Hailong S039-2 with bottom locking rail |
| Discharge Port | 4-Pin / 5-Pin Nickel-Plated Blade Terminals (XT60 cable) |
| Cycle Life | ≥ 1,000 cycles (@ 80% DoD, 25°C, residual capacity ≥ 80%) |
| Compliance Documents | UN38.3, MSDS, CE, RoHS, Samsung Cell Datasheet |
Motor & Drivetrain Compatibility
Compatible Motor Systems: Bafang BBS01B 250W/350W, TongSheng TSDZ2 36V 350W/500W, Shimano STEPS compatible frames, 36V front/rear hub motors.
Pre-Installation Check: Ideal drop-in replacement for standard Hailong 1 batteries. Check that your charger output is rated at 42.0V 2A.
Industrial Quality Architecture & Safety
- Automated Cell Sorting & Grading: Every cylindrical cell undergoes automated grading to ensure capacity variance ≤ 1.5% and internal resistance (IR) difference ≤ 2mΩ.
- Precision Pure Nickel Interconnects: Ultrasonic/spot-welded pure nickel strips lower internal resistance, minimize Joule heating during sustained hill-climbing, and prevent thermal runaway.
- Multi-Tier Smart BMS Protection: Real-time hardware monitoring protects against over-charge (4.25V/cell cut), over-discharge (2.8V/cell cut), continuous high-amperage over-current, and short-circuit faults with automatic reset.
- Shock-Resistant Structural Casing: Impact-resistant ABS+PC flame-retardant enclosure (UL94-V0 rated) shields the internal pack from trail debris, road vibration, and accidental drops.
OEM / ODM Customization & Sourcing Workflow
Shenzhen General Electronics Technology Co., Ltd. (GEB) provides complete end-to-end custom battery manufacturing for e-bike brands, distributors, and fleet operators:
Customizable BMS protocols (CAN-Bus, UART, RS485), customized wiring harnesses (Anderson, XT60, XT90-S, waterproof Julet connectors), and tailored discharge profiles.
Fully certified with UN38.3 test reports, MSDS, CE, RoHS, and Sea/Air Dangerous Goods (DG) freight classification for smooth customs clearance worldwide.
Frequently Asked Questions (FAQ)
Q1: How can I verify that this battery will fit my specific e-bike frame?
A: Download the 1:1 scale dimensional drawing or compare the exact enclosure length, width, and height listed in our specification table above with your frame triangle clearance. Ensure a minimum of 15-20mm clearance along the sliding direction for key release.
Q2: What is the sample lead time and mass-production turnaround?
A: Evaluation sample units typically ship within 5 to 7 business days. Mass production batches (100 to 1,000+ units) are fulfilled within 20 to 25 working days depending on cell supply allocation and custom BMS requirements.
Q3: Can GEB customize the battery housing color, branding, and connector pinouts?
A: Yes. We offer laser-etched OEM branding, silk-screened logos, custom color finishes for qualifying order volumes, and custom discharge/charge wiring pinouts tailored to your motor controller.
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