Panasonic
Ncr18650b
Grade A
3400mah OEM/ODM
3.7V
48g ±1g
18.6mm (D) × 65.2mm (H)
≥80% capacity after 500 times
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Model Number | NCR18650B |
Battery Size | 18.6mm (D) × 65.2mm (H) |
Anode Material | NCM |
Nominal Capacity | 3400mah |
Nominal Voltage | 3.65V |
Max Continuous Charge | CCCV,5000mA(1C),4.1±0.05V,100mA cut-off |
Max.Continuous Discharge | DC,15000mA(3C),2.50V cut-off |
Discharge(charge) voltage Range | 4.20-2.50V |
Cell Weight | 48.0±1.0g |
Cycle life | 500 Cycle times |
The Panasonic NCR18650B redefines value in the 18650 segment, combining high energy density, reliable 10A discharge capability, and extended cycle life. Designed for applications demanding stable power and compact form factors – from power tools to backup systems.
3,400mAh Nominal Capacity – Highest mass-produced capacity in its class (outperforms 99% of 18650 cells).
255Wh/kg Energy Density – 15% higher than average 18650 cells (e.g., Sanyo UR18650NSX: 225Wh/kg).
Flat Voltage Plateau: >80% capacity delivered within 3.5V–3.7V (0.2C discharge).
500+ Cycles (to 80% capacity @ 0.5C/1C, 25°C) – Backed by Panasonic’s 15-year cell aging data.
Ultra-Low Self-Discharge: <3% per month (1/3 the rate of Li-polymer alternatives).
Quad-Protection System:
PTC thermistor (overcurrent)
CID pressure valve (overcharge)
Ceramic-coated separator (140°C shutdown)
Stainless steel anti-explosion vent
Certified: UL 1642, IEC 62133, UN38.3 (tested for nail penetration, crush, thermal shock).
-20°C to 60°C Operation: Maintains >75% capacity at 0°C.
Humidity Resistant: 95% RH non-condensing compliance.
Tactical/Outdoor Lights: 1,200+ lumens for 4+ hours (single-cell).
Zero Voltage Sag: Stable output at 2A–4A discharge.
4-Cell Pack (20,400mAh): Charges smartphones 8–10 times.
>93% Charge Efficiency vs. 85% industry average.
Portable Ultrasound/Infusion Pumps: 12h+ runtime with <±1% voltage deviation.
EMI/RFI Shielded variants available.
5-Year Deployment: 1,825+ shallow cycles (10% DoD daily).
-40°C Arctic Edition for cold-chain monitoring.
Widely usd for Lighting, Electric Toys, Power Tools, Cash Machine, POS Terminal, Loudspeaker, Mine Equipment, Speaker, GPS Tracekr, Car Video-Registry, Stand-Alone Telemechanic Syster, GSM Modem, etc
Dongguan Misen Power Technology Co., Ltd. possesses advanced equipment, scientific management techniques, and excellent quality control. We focus on 18650, 21700, 32650, polymer, large single-cell power batteries, energy storage batteries, outdoor power supplies, emergency power supplies, lithium battery packs, and more.And the recycling and preparation of new energy vehicle battery modules, and provide OEM&ODM service.
These products are widely used in electric surfboards, electric bicycles, home energy storage, RV energy, marine energy, UPS systems, tower stations, and solar energy storage systems.
We specialize in this field for many years with advanced equipment,scientific management techniques,and excellent quality control which earn us customers all over the world.
Our factory has been evaluated, certified, and inspected by SGS Group. We aim to be a reliable battery supplier for long-term business relationships. All our batteries have passed international certifications, including UL, CE, ROHS, CB, UN38.3, MSDS, IEC, ISO9001 and others.