Sanyo UR18650ZK 3.7V 2500mAh 4.9A Battery

  • Cell model Sanyo UR18650ZK
  • Minimum capacity 2450mAh
  • Nominal capacity 2500mAh
  • Nominal voltage 3.7V
  • Max. continuous discharge current 4.9A
  • Cell specification Datasheet download
  • Applications LED flashlights; Toys Electronics power devices


  • Excellent battery efficiency

    For providing stable power to devices, Sanyo UR18650ZK 2500mAh 4.9A rechargeable battery offer 3.6V average operating voltage in order to guarantee maximum output power.

  • High discharge performance

    Sanyo UR18650ZK 2500mAh 4.9A battery provide powerful and constant power to the device or equipment, voltage drop less with load, the discharge curve is quiet stable from full to empty.

  • Fast charge and no memory effect

    Maximum continuous charge current 1.715A, can be full charged in about 3.0 hours. Sanyo UR18650ZK 2500mAh 4.9A battery has no memory effect and with minimal self-discharge.

  • Reliable and safe

    Sanyo and Panasonic are leader of Lithium-ion 18650 battery, provide only reliable batteries, it is 100% safe by using the battery according to the cell specification.

Items Specifications Notes
Nominal capacity 2500mAh 0.2C discharge, 2.5V cut-off
Nominal voltage 3.7V
Nominal energy 9.25Wh Capacity(Ah) × Voltage(V)
Charging voltage 4.20V
Charging current 500mA 丨1715mA Standard丨Rapid
Charging time 6.0 hours 丨3.0 hours Standard丨Rapid
Charging method CC – CV Constant current, constant voltage
Continuous discharge current 500mA 丨4.9A Standard丨Maximum
Peak discharge current 5A Within a short time
Discharge end voltage 2.5V Discharge cut-off voltage
Dimensions 18.5mm丨65.1mm Diameter丨Height
Typical weight 46.5g 1.64 oz
Charge temperature range +0 ~ +60°C +50 ~ 110°F
Discharge temperature range -10 ~ +45°C -4 ~ +140°F
Storage temperature -10 ~ +45°C Within 3 months

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