AG11 / LR721

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AG11 / LR721

Precision and reliability are key when working with fine electronics. That's why the AG11 / LR721 format Alkaline battery from VIDEX is created for wristwatches and precision mechanics, providing industrial-standard reliability in every hour of use.


Why masters and users trust VIDEX 1.5V cells:

  • Pazīstama arī kā (analogi): LR721, 162, 362, SR721SW.
  • Constant current level prevents reading errors (e.g., in measuring tools).
  • Safe shelf life, allowing you to buy them as backups.
  • Economical choice, paying for full power rather than unnecessary marketing.

Replace it and forget about it for a long time. Find this battery in our e-shop!



Q: What are the standardized physical dimensions of the VIDEX AG11 / LR721 battery and where is it used?

A: The VIDEX LR721 (AG11) is a precision miniature coin cell measuring exactly 7.9 mm in diameter, 2.1 mm in thickness, with ~25 mAh capacity. This ultra-compact format is mission-critical for tactical laser sights, compact medical diagnostic sensors, miniature LED novelty pins, and slim analog wristwatch movements. Selecting VIDEX ensures consistent, elevated energy density in devices where internal physical cavity space is severely restricted.


Q: Why do tactical laser pointers and miniature LED torches dim prematurely when powered by generic LR721 cells?

A: Laser diodes and high-intensity LED crystals require steady current density; off-spec generic cells suffer rapid voltage sag under pulse loads. This voltage drop causes beam scattering, reduced optical range, and rapid visual dimming mid-operation. VIDEX AG11 / LR721 alkaline cells maintain low internal resistance, delivering a brilliant, tightly focused beam until total cell depletion.


Q: How do LR721, AG11, 162, 362, and SR721 designations differ, and how do you choose the correct cell?

A: LR721, AG11, and 162 designate 1.5V alkaline button chemistry, whereas SR721, 362, and 361 indicate silver oxide cells of identical geometry. The VIDEX AG11 / LR721 serves as a 100% compatible, highly durable, and cost-effective drop-in replacement for daily consumer electronics and pointers. You secure reliable operating runtimes without overpaying for expensive precious metal chemistries.


Q: How does the 5-year guaranteed Shelf Life of VIDEX LR721 batteries ensure reliable home reserve readiness?

A: The factory-guaranteed 5-year shelf life ensures that backup button cells retain their chemical potency even when stored for years in a drawer. Because miniature batteries often expire at inconvenient moments, keeping a VIDEX blister pack at home eliminates urgent, frustrating trips to retail stores. A fresh cell will deliver 100% nominal voltage the exact second your device requires power.


Q: How does VIDEX precision crimping engineering prevent electrolyte leakage inside delicate wristwatches?

A: VIDEX utilizes micrometrically controlled steel shell crimping around a resilient, chemically inert nylon insulating sealing grommet. This engineering completely seals the active electrolyte within the cell core, preventing corrosive gas venting and fluid leakage even under severe ambient thermal shifts. Your delicate wristwatch movements and micro-electronic circuit boards remain securely shielded from galvanic oxidation.