1700mAh 3.7V Sanyo UR18500F Battery

Sanyo UR18500F Battery 

The Sanyo UR18500F Battery comes up with a nominal capacity of 1700mAh, the voltage of 3.7V. This is an absolutely excellent cell for anyone seeking high performance 18500 cells.


  • Nominal capacity: min 1620mAh
  • Nominal voltage: 3.7V
  • Charcing method: Constant current, constant voltage.
  • Charging voltage: 4.2V
  • Charging current: std. 1620mA
  • Charging time: 2.5 hours


There shall be no such defects as deep scratch, crack, rust, discoloration or leakage, which may adversely affect the commercial value of the cell.

Diameter :18.5mm

Diameter is defined as the largest data value measured on the “A” area of a cylindrical cell.

Height :49.6mm

-Nominal Specification of Sanyo UR18500F Battery-

Items Specifications Notes
Nominal capacity 1700mAh 0.2C discharge, 2.75V cut
Nominal voltage 3.7V -
Nominal energy 6.29Wh Capacity(Ah) × Voltage(V)
Charging voltage 4.20V -
Charging current 340mA 丨1130mA 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 340mA 丨3.4A Standard丨Maximum
Peak discharge current 5A Within a short time
Discharge end voltage 2.75V Discharge cut-off voltage
Dimensions 18.5mm丨49.6mm Diameter丨Height
Typical weight 34.5g 1.22 oz
Charge temperature range +0 ~ +45°C +50 ~ 110°F
Discharge temperature range -20 ~ +60°C -4 ~ +140°F
Storage temperature -20 ~ +50°C Within 3 months


1). Do not disassemble, dispose of in fire, heat or short circuit.
2).Do not insert batteries with the(+)and(-)reversed.
3). Do not mix fresh batteries with used batteries.
4).Do not submerge the battery in water

-Relative Curves of Sanyo UR18500F-

Discharge Characteristics (by temperature) of Sanyo UR18500F

Discharge Characteristics (by temperature) of Sanyo UR18500F

Discharge Characteristics (by rate of discharge) of Sanyo UR18500F

Discharge Characteristics (by rate of discharge) of Sanyo UR18500F

Cycle Life Characteristics of Sanyo UR18500F

Cycle Life Characteristics of Sanyo UR18500F

Charge Characteristics of Sanyo UR18500F

Charge Characteristics of Sanyo UR18500F

Storage Measures For Daily Lithium Battery Users

1. For Lithium-ion batteries which need to be stored for a long time and not used, they should be kept in a state of 50%-60% charge. They should be recharged every 3 months and recharged every half a year.

2. Attention should be paid to moisture-proof and moisture-proof, to prevent squeezing, collision, etc., to avoid battery damage.

3. It is forbidden to use or place the battery at high temperatures (in hot sunlight or in very hot cars), otherwise it may cause the battery to overheat, catch fire or fail in function, and shorten its life.

4. It is forbidden to store in places with strong static electricity and strong magnetic fields, otherwise it will easily destroy the battery safety protection device and bring unsafe hidden dangers.

5. If the battery emits an odor, fever, discoloration, deformation, or any abnormality during use, storage, or charging, immediately remove the battery from the device or charger and disable it.

How to Custom 14500 Battery Pack

We have the unique ability to develop custom 14500 battery pack to fit your needs. Our expert team of chemists, engineers, and manufacturers who use proven chemistry and production methods that will get from spec to production fast. Slim, flexible, more powerful.


  • Custom Voltage Range: 3V ~ 120V
  • Custom Discharge Current: 0.2C ~ 120C (0.01A-1000A)

  • Custom BMS: Size, Features, Communication, Cut-off, Temperature
  • Custom Battery Size: Starting 0.5mm Thickness
  • Battery Temperature from -40°C–85°C
  • Custom Connector: JST/Molex/Hirose/Anderson/TE/Amphenol  Etc


  • Custom 14500 Battery Pack, MOQ 100 pcs

  • Custom Samples as fast as 3 Days
  • Strict Quality Control, No Safety Concerns Ever
  • Instant Customer Support, Solve Any Problem in Time.
custom lithium battery packs collection

custom lithium battery packs collection

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