AG1 / LR621 Batteries

  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
Order
Price
-
Discounts
Brand
Do filter

AG1 and LR621 batteries provide reliable 1.5V power to microelectronics.


The extremely compact AG1 (LR621) microbatteries provide a capacity of 14mAh and stand out with their thin profile – 6.8 mm in diameter and only 2.15 mm in thickness. They are fundamentally important in specific miniature electronics, such as hearing implant accessories and small watches. Due to the high density of the metal casing, the impact on microchips is minimized, guaranteeing a constant 1.5V current output throughout the entire life cycle.


Physical and technical advantages:

  • 6.8 mm diameter: Miniature format for specific assembly.
  • Safe chemistry: Minimal discharge at high or variable temperatures.
  • Stable current: Integrates perfectly into complex microsensors and indicators.

Despite their small size, they guarantee industrial-level efficiency, improving the durability of any instrument. If the technology requires an even smaller size for microsensors, check out our AG0 / LR521 Batteries offer. Safety standards require the use of only certified and tested elements in the equipment. Properly selected components that meet technical specifications significantly extend the operating cycle of the hardware in extreme working conditions. Careful selection of materials and engineering during the manufacturing process ensure maximum reliability and safety in all technical application scenarios. This analytical approach is fundamental to today's demanding industrial needs, where there is no room for error and where energy efficiency is always a primary requirement for any reliable system. This allows for significant resource savings in the long run, while maintaining quality at the highest level.



Q: What is the specification of the AG1 / LR621 battery and its primary niche in miniature electronics?

A: The AG1 (known as 364A) is one of the smallest commercially available batteries, with a diameter of 6.8 mm and a thickness of only 2.15 mm, generating around 13 mAh capacity. This extremely miniature format is critically required in the smallest analog women's quartz watches and discrete hearing aids.


Q: Why are AG1 (LR621) batteries irreplaceable in discrete (In-Ear) microphone amplifiers?

A: To hide the microphone capsule in the ear canal, the device size must be minimal, so the battery diameter must not exceed 6.8 mm. VIDEX LR621 alkaline elements provide sufficient current to the sound amplifier's transistors during a daily load cycle without extra weight (the element weighs less than 0.3 grams).


Q: Why do small-sized women's watches with an AG1 (LR621) battery stop more frequently than large watches?

A: The laws of physics dictate – the smaller the volume, the less electrochemical capacity (only 13 mAh). Although stepper motors are optimized for micro-consumption, this amount of energy provides autonomy for an average of 6 to 12 months, as opposed to the 3-year cycle of large men's watches (with a larger battery).


Q: Is it allowed to heat an AG1 (LR621) alkaline battery if it has lost voltage in a watch?

A: Heating or burning any size coin cell battery is strictly forbidden – it not only fails to restore capacity but can cause a thermal explosion. As the temperature rises rapidly, internal potassium hydroxide evaporates, overpressures the cap's insulation ring, and can eject hot corrosive alkali.


Q: How to properly and safely open the packaging and insert the small AG1 battery?

A: The 6.8 mm x 2.15 mm element is so delicate that strong pressing with metal tools can dent the center of the negative pole and cause an internal short circuit. After removal from the blister, the battery should be gently slid into the socket from the side, never pressing its center against the sharp contact edges of the device.