FDK Lithium battery top picture
These batteries use Niobium Oxide for the positive material and Lithium Aluminum alloy for the negative material.
Features
  • Stable Operating Voltage of 1.2V.
  • Charging Possible with 1.8V.
  • Low self-discharge rate and long cell life.
    Self-discharge rate : less than 2% oer year at room temperature.
  • Usable over a wide temperature range.
    Operational temperature range : -20C to +60C (-4F to +140F )
    Consult with FDK when using batteries at temperatures exceeding
    -20C to +60C (-4F to +140F ) range.
  • UL recognition (File No. MH13421)
Applications
  • Memory backup power source for cellular phone and PDA.
  • Memory backup power source for electronic equipment.
Others
  • Available to meet customers package requirements (multiple cell, with tabs, connectors, etc)
  • Use nickel-plated phosphor bronze or stainless steel for terminal materials for battery contact. To ensure stable contact conditions, several N of contact pressure is recommended when attaching.
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NIOBIUM RECHARGEABLE LITHIUM BATTERIES
Item Nominal Voltage
(V)
Nominal Capacity *1
(mAh)
Standard Charge/Discharge Current
(mAh)
Max Pulse Current *2
(mA)
Charge/Discharge Cycle Characteristics
(discharge depth of 20%)
Charging Method Dimensions
(mm)
Weight
(g)
Data
Sheet
Constant Voltage Charge Diameter
(D)
Height
(H)
NBL414 2.0 1.0 0.005 0.5 300cycles 1.82.6V 4.8 1.4 0.07
* Expected life is 5 years at R.T..
* Consult with FDK when considering multiple-cell construction.
*1 Nominal capacity is determined at an end voltage of 1.0V when the battery is allowed to discharge at a standard current level at +23C.
*2 Current value for obtaining 1.0V cell voltage when pulse is applied for 15 seconds at 50% discharge depth(50% of the nominal capacity) at +23C.