Description
Reliance RS40 21700 Cell – 4000mAh 45A – High-Performance Lithium-Ion Cell - In stock
The Reliance RS40 21700 4000mAh 45A is a high-efficiency, high-drain lithium-ion cell built for demanding applications. With a 45A continuous discharge rating and solid 4000mAh capacity, this cell is ideal for e-bikes, scooters, power tools, and DIY performance packs.
This cell is a tabless design and delivers consistent output under stress. It compares favorably to trusted models like Molicel P42A and Samsung 40T, while offering great thermal handling and cycle life.
Specifications:
| Model | INR21700-RS40 |
| Size | 21700 |
| Nominal Capacity | 4000mAh (Min. 3950mAh) |
| Nominal Voltage | 3.6V |
| Max Voltage | 4.2V |
| Min Discharge Voltage | 2.5V |
| Max Continuous Discharge | 45A (with 80°C cut-off) |
| Standard Charge Current | 2.5A |
| Max Charge Current | 8A |
| Chemistry | INR (NCA/NMC) |
| Positive Terminal | Flat Top |
| Protected | No |
| Rechargeable | Yes |
| Approx. Weight | 67g |
| Dimensions | 21.35mm × 70.30mm (Max) |
| Datasheet | [Insert PDF link here] |
Applications:
- ✅ High-Drain E-Bikes
- ✅ Electric Scooters
- ✅ Power Tools
- ✅ Performance Battery Packs
- ✅ Custom 21700 Builds
DIY500AMP.COM Design – High-Drain Ready, Performance Certified
⚠️ Safety Warning for Lithium-Ion Battery Usage
Customers should have a clear understanding of lithium-ion battery handling and safety before making a purchase. Lithium-ion batteries are highly sensitive and may pose fire, burn, or explosion risks if improperly handled. Always charge batteries on fire-resistant surfaces, and never leave them charging unattended.
By purchasing, you assume full responsibility for any injury, damage, or loss arising from the incorrect use or handling of lithium-ion batteries or chargers. Compatibility with specific devices is not guaranteed. Only charge using a smart charger designed specifically for this battery type, and do not mix old or used batteries with new ones.
Important Usage Guidelines:
- Not for Use in E-Cigarettes or Similar Devices
- Must Be Used in a Protected Pack
- Spot Weld Only – Do Not Solder Directly
- Store in Fireproof Container
- Inspect Before Use
- Follow Manufacturer Specs Strictly