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Panasonic NCR18650B 3400mAh - Button Top Battery

Panasonic NCR18650B Button Top 18650 Battery 3400 Lithium Ion Rechargeable

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Product Details

Panasonic NCR18650B 3400mAh 4.9A Battery - Button Top

*Please NOTE these button top batteries are 2-3mm longer than a standard 18650 cell. (flat top, unprotected). The button top is commonly required for flashlights, doorbells and other devices.
Panasonic NCR18650B Unprotected Flat Top Cell (~65mm length)
Panasonic NCR18650B Protected Button Top Cell (~70mm length)

Panasonic 18650 batteries are well known for their superior performance and manufacturing quality. This high capacity battery is designed for use in high performance custom built battery packs. With an ultra high energy density of 3400 mAh, this battery has one of the highest capacities available for batteries of its size. Each battery is manufactured and inspected by Panasonic for quality assurance.

Panasonic NCR18650B Data Sheet PDF


  • Model: NCR18650B
  • Size: 18650
  • Style: Button Top
  • Chemistry: NCR
  • Nominal Capacity: 3400mAh
  • Continuous Discharge Rating: 4.9A
  • Nominal Voltage: 3.6v
  • Protected: No
  • Rechargeable: Yes
  • Approximate Dimensions: 18.63mm x 67.18mm
  • Approximate Weight: 47.5g

All batteries contain a label decal stating the approximate voltage and capacity. This label is easily removed to reveal the manufacturer print. The label decal is a requirement by the U.S. Government (IATA) which regulates the shipping of lithium ion batteries.


The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. This battery is sold for the use of system integrations with proper protection circuitry or battery packs with a battery management system or PCB (circuit board/module). Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. Charge only with a smart charger designed for this specific type of lithium ion battery.

  • Misusing or mishandling lithium ion batteries can pose a SERIOUS RISK of personal injury, property damage, or death
  • ONLY use with proper protection circuitry
  • ONLY use within manufacturer specification
  • DO NOT store loose in pocket, purse, etc. – always use a protective case
  • KEEP AWAY from metal objects to prevent short circuiting
  • DO NOT short circuit
  • DO NOT use if wrapper or insulator is damaged or torn
  • DO NOT use if damaged in any way
  • DO NOT overcharge or over-discharge
  • DO NOT modify, disassemble, puncture, cut, crush, or incinerate
  • DO NOT expose to liquids or high temperatures
  • DO NOT solder
  • User must be familiar with handling lithium ion batteries before purchase
  • Usage of batteries is AT YOUR OWN RISK

Local regulations and laws pertaining to the recycling and disposal of lithium ion batteries vary so please consult your local jurisdiction regarding appropriate disposal. Many retail stores offer free recycling of rechargeable batteries.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 56 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 September 25, 2020
Reviewer: Larry E Grant from FULTON, NY United States  

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  0 of 0 people found the following review helpful:
5 of 5 Fast Processing and shipping September 24, 2020
Reviewer: John Magana from San Diego, CA United States  
i ordered these at the beginning of the week and was hoping to get it before i had to ship a package overseas.  i ended up getting the shipment wednesday afternoon

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  0 of 0 people found the following review helpful:
5 of 5 18650 Battery Purchase September 24, 2020
Reviewer: Ted Hansen from Pella, IA United States  
Batteries arrived in great shape and performance is right on!

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  0 of 0 people found the following review helpful:
2 of 5 Meets specs in charger but doesn't last long in ca September 23, 2020
Reviewer: William Senske from Napa, CA United States  
Distilling run running tests but only lasted 4 days in my outdoor camera on the first try after it was charged

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  0 of 0 people found the following review helpful:
5 of 5 Battery store delivers what I needed September 21, 2020
Reviewer: Jeremy Rymut from Chesterfield, MI United States  
Product came on time and product is excellent!! Will definitely order more products!!

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