Nitecore i4 + 4 x Panasonic NCR18650B (protected), with cases

Nitecore i4 intellicharger battery charger
Panasonic NCR18650B 3.7V 3400mAmh Protected Li ion battery
Panasonic NCR18650B 3400mAh protected in case
Marsen Energy Panasonic NCR18650B 3400mAh Protected Lithium ion Battery boxed

Brand: Nitecore + Panasonic

Model: i4 + NCR18650B

Product Code: i4-panasonic-protected

Availability: In Stock

Marsen Energy has combined a Nitecore i4 + 4 x Panasonic NCR18650B (protected), with cases

Nitecore i4 Universal Charger


The Intellicharge i4 is a universal, automatic smart-charger compatible with almost all types of rechargeable batteries thus eliminating the need to own several chargers. The i4 is able to automatically identify Li-ion, Ni-MH and Ni-Cd rechargeable batteries and apply an appropriate charging mode (Constant Charge Current (CC), Constant Charge Voltage (CV) and Trickle Charge). Each of the i4's two micro processor-controlled charging slots is capable of monitoring and charging batteries independently. Additionally, yellow and blue power/charging status indicator lights could visibly indicate battery status and charging process. i4: The all-new highly advanced smart charger. It's as simple as insert, detect, and charge.


  • Capable of charging 4 batteries simultaneously
  • Each of the four battery slots monitors and charges independently
  • Compatible with and identifies Li-ion (26650, 22650, 18650, 17670, 18490, 17500, 18350, 16340(RCR123), 14500, 10440), Ni-MH and Ni-Cd (AA, AAA, AAAA, C) rechargeable batteries
  • 3 Color LED displays charging progress for each battery.
  • Intelligent circuitry detects the battery type and status before entering automatic charge mode
  • Automatically detects battery power status and selects the appropriate voltage and charge mode
  • Optimised charging design for IMR batteries
  • Compatible with small capacity batteries
  • Automatically stops charging when complete
  • Features over-charge prevention to protect batteries
  • Features temperature monitoring to prevent overheating
  • Made from durable ABS (fire retardant / flame resistant)
  • Features reverse polarity protection
  • Designed for optimal heat dissipation
  • Conveniently located side button allows easy selection of specific battery types and charging parameters
  • Certified by RoHS, CE, FCC and CEC

Panasonic NCR18650B (protected, button top)


The Panasonic B is the most famous out of all 18650 batteries. When first released several years ago it was the highest-capacity 18650 cell mass produced and thus an essential ingredient in the rechargeable revolution and for the adoption of electric vehicles like the Model S (which has been powered by the Panasonic 18650B for some years). It is still the most requested cell for custom packs. A PCB protection circuit built in to this cell makes this cell perfect for low power applications like torches, the PCB prevents over discharge of the cell which can servery shorten the life of the cell.

Panasonic NCR18650B 3400mAh datasheet

Package includes:

  • 1 x Nitecore i4 Universal Charger
  • 4 x Panasonic NCR18650B 3.6v batteries
  • 2 x Battery safety cases

Nitecore i4 Universal Charger


  • Dimension : 13.8cm x 9.5cm x 3.6cm(LxWxH)
  • Input : AC 100-240V 50/60Hz 0.35A(MAX) or DC 12V 1A
  • Output Voltage : 4.2V / 1.48V
  • Output Current : 375mA x / 4 - 750mA x 2

Panasonic NCR18650B (protected, button top)

Battery Specifications:

  • Model: NCR18650B
  • Positive terminal style: Button top
  • Protected (PCB):  Yes
  • Manufacturer: Panasonic
  • Country of Origin: Japan
  • Chemistry: NCR
  • Rated capacity (minimum): 3250 mAh
  • Nominal capacity: 3350 mAh
  • Max. continuous discharge current: 4.875A
  • Nominal voltage: 3.6 V
  • Discharge end voltage: 2.5 V
  • Over current protection 10A-12A
  • Over charge voltage 4.33V
  • Charging voltage: 4.20 +/- 0.03 V
  • Standard charging current: 1.625 A