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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: 45 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Good product description, quality batteries May 23, 2020
Reviewer: Yury Rykov from Sugar Land, TX United States  
Good product description, quality batteries, wide choice.

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  0 of 0 people found the following review helpful:
5 of 5 May 21, 2020
Reviewer: james washburn from Wadsworth, OH United States  

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  0 of 0 people found the following review helpful:
5 of 5 Prefect Replacement May 21, 2020
Reviewer: Clifford Johnson from Lawndale, CA United States  
Used for flashlight and works perfectly

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  0 of 0 people found the following review helpful:
5 of 5 Xtar Portable Charger and 18650 batteries May 21, 2020
Reviewer: Anonymous Person  
Both were perfect and the order was processed, shipped and arrived fairly quick during these over congested COVID times.  Would recommend both products as well as the Seller.  Thanks for being competent :)

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  0 of 0 people found the following review helpful:
5 of 5 Great seller May 20, 2020
Reviewer: Brian Klock from Tampa, FL United States  
They had the batteries I wanted a price that's reasonable

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