Button cells

AG1 / LR621 Alkaline Button Cell Battery

MODELAG1

The AG1 / LR621 Alkaline Button Cell Battery is a small round alkaline cell built for miniature, low-drain devices. It delivers a stable 1.5 V output with a capacity of 13 mAh and a maximum discharge current of 2 mA, which matches the power profile of watch movements and other micro electronics that draw a small, steady current over a long service period.

  • OEM & ODM service
  • Free sample service
  • International certifications
TECHNICAL DATA 02

Product Specifications

ProductLR621 AG1 Alkaline Button Cell Battery
Voltage1.5V
ChemistryAlkaline
Capacity13 mAh
Max Discharge Current2 mA
Operating Temperature-20~60 °C
Storage Temperature-20~50 °C (Best at 20 ±5 °C)
Shelf Life3 Years
Highlight13mAh AG1 batteries, stable 1.5 volt alkaline button cell battery; watch LR621 button cell battery
MORE INFORMATION 03

Product Details

The AG1 / LR621 Alkaline Button Cell Battery is a small round alkaline cell built for miniature, low-drain devices. It delivers a stable 1.5 V output with a capacity of 13 mAh and a maximum discharge current of 2 mA, which matches the power profile of watch movements and other micro electronics that draw a small, steady current over a long service period.

As stated in the product highlight, this is a 13 mAh AG1 battery with a stable 1.5 volt alkaline button cell construction, and it is a watch LR621 button cell battery. The cell carries a 3-year shelf life and works over an operating range of -20 to 60 °C, so it can be stored and shipped through a wide range of climates.

WHY THIS PRODUCT 04

Product Advantages

  • Stable 1.5V Alkaline Output: The cell holds a stable 1.5 V output, so watch movements and small electronics receive the steady voltage they are designed for.
  • 13 mAh Capacity: A 13 mAh capacity in an AG1 / LR621 button cell gives micro devices enough energy for the long, low-current service intervals they require.
  • 2 mA Max Discharge Current: A 2 mA maximum discharge current matches the design load of watches and similar miniature devices, keeping the cell within its intended operating profile.
  • Wide Operating Range (-20~60 °C): The cell works from -20 to 60 °C, which covers normal indoor use plus transport and storage through cold and hot climates.
  • Controlled Storage Conditions: Storage from -20 to 50 °C with 20 ±5 °C recommended as the best condition, so stock rooms and retail displays can be planned around a clear temperature window.
  • 3-Year Shelf Life: A 3-year shelf life means stock can be produced, warehoused and distributed without tight rotation pressure.
WHERE IT WORKS 05

Typical Applications

  • The product highlight names watch use for this LR621 button cell. Beyond watches, a 1.5 V / 13 mAh button cell with a 2 mA maximum discharge current suits the miniature low-drain device classes below; the list can be adjusted to match the target market.
  • Watches: Watch movements, including analog watches built around an AG1 / LR621 button cell.
  • Small Clocks & Timers: Small clocks, timers and similar timekeeping devices that draw a small, steady current.
  • Pocket Electronics: Calculators, digital thermometers and other pocket-size electronics with a button cell bay.
  • Miniature Toys & Novelties: Miniature toys, light-up novelties and small laser pointers that stay within a 2 mA load.
  • Other Button-Cell Devices: Other micro devices that accept an AG1 / LR621 1.5 V alkaline button cell.