LED
LCD
Product Description
The AG3 (commonly cross-referenced as LR41, 192, or 392) is a highly reliable, ultra-compact alkaline button cell battery engineered to provide stable 1.5V power to miniature electronic hardware. With an optimized 12mAh capacity, this primary cell delivers consistent voltage discharge and helps protect delicate, low-drain microcircuits from power fluctuations. Built with an advanced anti-leakage precision seal, it ensures a secure shelf life and strict structural integrity during long-term deployment. For hardware repair technicians, medical equipment maintenance teams, and electronics hobbyists, it represents the absolute standard for compact, cost-effective power replacement.
Pinout / Layout Connections
As a standard coin cell battery, the physical package acts as its electrical terminals:
Top Face & Wide Outer Casing (+): The flat, wider top surface stamped with the model designation serves as the positive terminal.
Bottom Circular Face (-): The slightly raised circular contact surface on the lower base serves as the negative terminal.
Insulation Gasket: A micro-thin plastic isolation ring seals the perimeter between the positive shell and the negative floor to protect the cell from self-discharging or short-circuiting during storage or installation.
Applications
Medical Equipment: Digital clinical thermometers, ear scopes, and small diagnostic penlights.
Precision Instruments: Miniature laser pointers, pocket travel timers, and small measuring tools.
Timepieces: Standard analog wristwatches, digital pocket watches, and novelty timers.
Consumer Electronics: Interactive children’s books, small talking toys, and miniature LED lights.
Novelties & Gadgets: Light-up keychains, small entry remotes, and low-power micro-novelty items.
Technical Specifications
| Parameter | Value / Specification |
| Model | AG3 (LR41 / 192 / 392) |
| Chemistry | Alkaline Manganese Dioxide ($\text{Zn/MnO}_2$) |
| Nominal Voltage | 1.5 V |
| Nominal Capacity | 12 mAh |
| Diameter | 7.9 mm |
| Height / Thickness | 3.6 mm |
| Weight | ~0.6 g |
| Operating Temperature | -10 °C to +60 °C |
| Rechargeability | Non-Rechargeable (Primary Cell) |
