High Quality Low Price ND21700-4000mAh-3C li-ion battery combines stable 3.7V output, ≤21mΩ low internal resistance and long cycle life. Factory direct sale ensures favorable cost and consistent quality. Perfect for flashlights, LED lighting and outdoor equipment, it provides steady power for daily and professional use.
| Battery Model | ND21700-40-3C |
| Battery Type | 21700 Cell |
| Nominal Voltage | 3.65V |
| Nominal Capacity | 4000mAh |
| Working Voltage | 2.75V-4.2V |
| Max Charge Current | 1C |
| Max Discharge Current | 3C |
| Peak Discharge Current | 4C |
| Internal Resistance | ≤21mΩ |
| Charge Temperature | 0-45℃ |
| Discharge Temperature | -20-60℃ |
| Storage Temperature | -20-45℃ |
| Cycle Life | ≥800 cycles |
| Battery Size | φ21.7*70.5mm |
| Battery Weight | 69.5g |
| Warranty | 2 Years |
A: Our batteries are certified with UN38.3, CE, FCC, RoHS, IEC62133, UL and other regional certifications as required.
A: Yes, we can provide full documentation including MSDS, UN38.3 test report, cargo transport assessment report, and certification files.
A: No strict MOQ requirement. Small samples are available for testing.
A: Yes, FOB/CIF/DAP/DDP are all available for most countries. DDP (door to door and duty paid) is preferred by a larger number of customers.
A: Yes, battery pack/OEM/ODM available.
More info, please contact us: Wechat/WhatsApp: +8613570852640 Email: support@nogipower.com
