Product Description
Samsung SDI INR18650-35E | 3500mAh High Capacity Lithium Ion Battery Cell
The Samsung SDI INR18650-35E is a premium 3500mAh lithium ion battery cell designed for high‑drain applications. With a 13A maximum discharge current, a nominal voltage of 3.65V, and an energy density of up to 3500mAh, it delivers exceptional performance for electric bicycles, power tools, energy storage systems, and high‑capacity battery packs. This grade A cell is manufactured with Samsung’s advanced lithium‑ion technology, ensuring long cycle life, reliable safety, and consistent output.
📊 Key Specifications
| Item | Specification |
|---|---|
| Nominal Discharge Capacity | 3500mAh |
| Minimum Capacity | 3350mAh (0.2C, 2.65V discharge) |
| Charging Voltage | 4.2 ± 0.05V |
| Nominal Voltage | 3.65V |
| Charging Method | CC‑CV (constant voltage with limited current) |
| Charging Current | Standard: 1,700mA / Quick: 2,000mA |
| Charging Time | Standard: 4 hours |
| Discharge Current (25°C) | 8A – 97% capacity retention |
| Max. Discharge Current | 13A MAX (@25°C) |
| Discharge Cut‑off Voltage | 2.65V |
| Cell Weight | ≤50g |
| Cell Dimension | Height: 65.00mm max, Diameter: 18.33mm max |
| Operating Temperature | Charge: 0 to 50°C / Discharge: -20 to 75°C |
| Storage Temperature | 1.5 year: -30 to 25°C 3 months: -30 to 45°C 1 month: -30 to 60°C |
⚡ Performance & Features
🔋 High Capacity
3500mAh typical capacity provides extended runtime for e‑bikes, power tools, and portable devices. Ideal for applications requiring high energy density.
💪 High Discharge Current
Supports up to 13A continuous discharge – suitable for high‑power devices like electric bikes, cordless tools, and robotics.
🔒 Safety & Reliability
Built with Samsung’s safety‑enhanced separator and pressure relief vent. Ex‑factory cells retain >80% capacity after long‑term storage.
🌡️ Wide Temperature Range
Operates from -20°C to 75°C during discharge, ensuring reliable performance in diverse environments.
🔧 Applications
- Electric bicycles & scooters – ideal for high‑capacity 36V, 48V, and 52V battery packs
- Power tools – cordless drills, saws, impact drivers requiring sustained high current
- Energy storage systems (ESS) – residential solar storage, UPS backup
- Portable power stations & DIY battery packs
- Medical devices & robotics
• Cells are shipped at approximately 50% state of charge (ex‑factory status).
• If stored properly, the capacity recovery rate is more than 80% after prolonged storage.
• Always use a proper battery management system (BMS) when assembling multi‑cell packs.
• We offer matched cells (capacity, voltage, internal resistance) for battery pack assembly.
🌟 Why Choose Samsung 35E Cells?
✅ Genuine Samsung Quality
100% original Samsung SDI cells, grade A, with full traceability and QR codes.
📈 High Energy Density
3500mAh in standard 18650 form factor – maximizes capacity per cell.
🔄 Long Cycle Life
Designed for 500+ full cycles with proper usage, delivering years of reliable service.
🔋 Excellent for High‑Power Packs
13A discharge capability allows for compact, high‑power battery configurations.
We offer spot welding, cell matching, and complete pack assembly services using Samsung 35E cells. Contact our team for OEM/ODM solutions, including custom BMS programming, connectors, and enclosures.
Primary: Samsung 35E · INR18650-35E · 3500mAh 18650 · Samsung lithium battery · high capacity li-ion · e‑bike battery cell · power tool battery · 13A discharge
Performance: 13A max continuous discharge · 3500mAh capacity · 3.65V nominal · 4.2V charge voltage · -20°C to 75°C discharge · 50g weight
Applications: electric bicycle battery · power tool pack · energy storage · DIY battery · Samsung 35E cell · high‑drain li‑ion
