EM3ev King Shark 1004 – 36V 20Ah eBike Battery
From: $319.00 (USD)
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Description
⚡ EM3ev King Shark 1004 — 36V 19.6Ah (706Wh) – 10S4P-50GB
High-Capacity 36V Pack | Samsung 21700 Cells | Smart BMS | Since 2011
The EM3ev King Shark 1004 is a premium 36V 19.6Ah (706Wh) downtube-mounted eBike battery engineered for riders who want reliable long-range performance in a compact form factor. Built with genuine Samsung 21700-50E cells in a 10S4P configuration and protected by a 40A temperature-monitored smart BMS, this pack is ideal for riders searching for the best 36V downtube battery for commuting, trekking, or city riding.
The pack uses the proven Reention King Shark rail mount for secure frame installation and features an IP65 weather-resistant enclosure, making it suitable for year-round use in wet or dusty environments. Its balanced size-to-range ratio makes it a strong match for Bafang 36V mid-drive systems, geared hub motors, and efficient commuter builds.
🔋 Key Model Highlights
- Energy: 706Wh (excellent range for 36V systems)
- Capacity: 20Ah using Samsung 50GB cells
- Voltage: 36V nominal system (10S)
- Continuous Discharge: 40A smart BMS
- Mount: Reention King Shark downtube rail
- Protection: IP65 dust & water resistant
- Bluetooth: Optional smart BMS
- Weight: approx. 3.75 kg
📊 Technical Specifications
| Model | King Shark 1004 |
|---|---|
| Pack Configuration | 10S4P – Samsung 21700-50E |
| System Voltage | 36V (Nominal 36V / Full 42.0V) |
| Discharge Cut-Off | 27V |
| Capacity | 19.6Ah |
| Energy | 706Wh |
| Continuous Discharge | 40A |
| Cell Type | Samsung 21700-50GB (NMC) |
| BMS | 1103A-FPS smart BMS, temp-protected, optional Bluetooth |
| Charge Connector | Reention DC port (supports 3A–5A chargers) |
| Discharge Connector | Reention rail base (XT90 / XT60 / Anderson optional) |
| Typical Charging Time | ~6.7 h @ 4A • ~5 h @ 5A • ~3.4 h @ 6A |
| IP Rating | IP65 (dust-tight & splash-resistant) |
| Cycle Life | 500+ cycles (≥80% capacity) |
| Certifications | UN38.3 transport certified / CE |
| Operating Temperature (Discharge) | -10 °C to +45 °C |
| Charging Temperature | 0 °C to +45 °C |
| Storage Temperature | 0 °C to +45 °C (cool, dry environment recommended) |
| Warranty | 1 year |
| Weight | Approx. 3.75 kg |
🛠️ Built for Real-World Riders
- Perfect match for 36V Bafang mid-drive kits (BBS01/BBS02 36V models).
- Ideal for commuting, trekking and versatile urban eBike builds.
- Reention rail mount ensures secure installation on rough paths.
- Excellent choice for riders wanting a long-range 36V eBike battery pack.
📱 Smart BMS & Bluetooth Monitoring
- Bluetooth monitoring for real-time voltage, temperature & cell group data.
- Great for users seeking a 36V battery with Bluetooth monitoring.
- Customizable BMS settings for OEM or performance tuning.
🧩 Customization Options
- Connector choices: XT90 / XT60 / Anderson.
- Custom harness lengths for better frame integration.
- OEM branding and tuning service available.
🧪 Quality & Testing
- Every pack is tested for cell matching, load performance and BMS safety.
- Nickel–copper hybrid busbars ensure low internal resistance.
- IP65 sealing and vibration testing guarantee outdoor durability.
🚚 Shipping Information
- Ships within 3–5 business days after order confirmation.
- UN38.3 certified packaging for safe global lithium transport.
- Worldwide shipping with tracking (US/EU/UK/AU supported).
- Shock-absorbing protective packaging for safe delivery.
- 24/7 support for shipping and technical questions.
⚠️ Safety & Handling
- Use only approved 36V lithium chargers; never charge unattended.
- Avoid puncture, crushing, short circuit or immersion.
- Store between 0–45°C; avoid long-term full-charge storage in heat.
🏆 Why Choose EM3ev
- 🔷 Founded in 2011 — over a decade of eBike battery engineering.
- 🌍 Trusted worldwide for reliable 36V, 48V & 52V battery packs.
- 🧰 Real-world tested designs for mid-drive and hub motor systems.
- 💬 Engineering-focused customer support.
EM3ev — Power That Moves You Forward.
Looking for a battery without branding? We also offer an unbranded (OEM) version of this pack for custom builds or discreet installations. Click here to learn more.⬅️
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