Nuwon Energy
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| Model | Low-temp -40°C High Rate 70A 3.7V 5000mah INR21700 RS50 Rechargeable Cylindrical Cell Li Ion Lithium Ion 21700 Battery |
| Rated Capacity | 5000mAh |
| Nominal Voltage(V) | 3.7v |
| Maximum discharging current | 70A |
| Maximum charging current | 2C (10A) |
| Chargeable | Yes |
| Cycle Life | ≥ 2000 times |
| Weight | 0.072kg |
| Dimensions (L*W*H) | 21*70mm |
| Applications |
1. UAV, FPV drones and industrial drone power systems 2. Outdoor industrial power tools operating in cold environments 3. EV, E-bike and E-motorcycle battery packs (supporting application) 4. Portable power equipment requiring burst current output |
New Model: INR21700 RS50
Brand New Cells: 1000 cycles with 1-year warranty.
Pre-matched Delivery: All cells matched by voltage, capacity, and resistance before shipping.
All batteries undergo multiple tests prior to shipping to guarantee top quality, full capacity, and matched voltage & internal resistance.
OEM / ODM service acceptable. Battery packs, battery sizes, and tabs can be customized according to your specifications. 100% quality guarantee as expected.
Customized voltage: 3.7v, 7.4v, 11.1V, 14.8v, 22.2v, etc.
Customized capacity: 2000mah-200ah, etc.
Batteries with different terminals are available, including PC pins, tabs, solder tabs, leads, wires, cables, and connectors.
Established in May, 2008, we are one of the fullest range battery cells and battery packs companies. We focus on the manufacturing and design of lithium iron phosphate batteries, energy storage battery packs, and portable power supplies, providing a wide range of qualified lithium-ion batteries, lithium-ion polymer batteries, and energy storage batteries. This includes OEM/ODM Cylindrical/12V/24V/36V/48V battery pack services. These products are widely used in electric surfboards, electric bikes, home energy storage systems, RV energy, boat energy, UPS, tower base stations, solar energy storage systems, etc.
The battery cells of all battery packs are high-quality, including Chinese top brands and imported branded battery cells from all over the world.
We feature an experienced R&D team and an efficient, collaborative management team. Our factory is assessed, certified, authenticated, and inspected by the SGS Group. We strive to be a reliable battery supplier for long-term business. All of our batteries pass UL, CE, ROHS, CB, UN38.3, MSDS, IEC, ISO9001 and other international certifications.
Yes, it is Grade-A and brand new. The QR code is intact.
Yes, we measure each battery's voltage, internal resistance, and capacity before shipping.
The price includes bus bars and nuts. Each battery cell will come with one set of bus bars and nuts (e.g., if you buy 4pcs of batteries, we will send 4pcs cells with 4pcs bus bars and 8pcs nuts).
We offer a 5-year warranty for LiFePO4 batteries and a 3-year warranty for NMC batteries. For damage due to non-human factors, we will refund or send a replacement battery after reviewing photo or video evidence.
Yes. The battery will be packed in protective condition with thick PE foam and placed into a 5-layer drop-resistant carton.
We usually ship via Train/Sea DDP or Express. We can also ship with your own shipping agent.
