Ag8 Battery

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

27 来源

The AG8 battery is a widely used button cell battery primarily found in small electronics, toys, and standard analog watches. While the "AG8" label refers to the 1.5V Alkaline version, it is physically identical to the 1.55V Silver Oxide 391 battery, which is preferred for precision timepieces Onlybatteries Batteriesinaflash.

Core Specifications & Identification

The AG8 battery is defined by a standard dimension of 11.6 mm (Diameter) × 2.1 mm (Height) Onlybatteries. It is frequently cross-referenced under several international standards:

* Alkaline (Standard): LR1120, LR55, 191, G8 Batteriesinaflash.

* Silver Oxide (Premium): 391, 381, SR1120SW, SR1120W Onlybatteries Batteriesinaflash.

* Performance Tiers: The 391 (High Drain) is designed for devices with backlights or alarms, while the 381 (Low Drain) is optimized for basic watch movements Batteriesinaflash.

Market Pricing & Wholesale Trends

In the B2B market, AG8 batteries are typically sourced from manufacturing hubs in Shenzhen, Ningbo, and Jinhua, China Alibaba Alibaba Alibaba.

* Wholesale Price Range: Individual units range from $0.01 to $0.06 per piece for bulk Alkaline orders (100k+ pieces), while Silver Oxide variants (e.g., Renata or Seiko branded) can reach $0.80–$0.90 per unit Alibaba Alibaba.

* Consumer Shift: There is a growing market preference for Multi-Drain Silver Oxide cells (like the Renata 391) that simplify inventory by working in both high and low-drain devices Batteriesinaflash.

* Compliance: Increasing consumer demand for "0% Mercury" (Hg-free) and "Lead-Free" (Pb-free) certifications is now a standard requirement for entry into European and North American retail markets Alibaba Alibaba.

Applications & Demand Insights

* Alkaline AG8: Dominates high-volume, low-cost categories like LED flashlights, electronic toys, and basic calculators Onlybatteries Alibaba.

* Silver Oxide 391: Retains strong demand in the professional watch repair and high-end medical device sectors due to its stable voltage discharge Batteriesinaflash Market.

* 2026 Outlook: Demand is driven by the proliferation of wearable sensors and small portable gadgets, with a global consumer battery market growth projected at a CAGR of 6.9% through 2030 Market Grandviewresearch.

Detailed B2B pricing and supplier lists for various brands (Sony, Renata, PKCELL) are included in the files below.

Based on these insights, you can proceed with:

Sources & References

27 sources cited · Verified industry data & reports

Watch Battery Cross Reference Chart & Equivalent Size Guide

batteriesinaflash.com

Its Energizer equivalent is the 377, measuring 6.80mm in diameter and 2.60mm in height. A 377 and SR626SW are the exact same battery. measuring 6.80mm x 2.60mm ...

Battery Equivalent Size Charts

gts-shop.co.uk

The Battery Equivalent Tables below give you battery sizes and their equivalent replacement codes as used by different battery manufacturers. AG8, AG-8, 191, L ...

LOOPACELL 10 x AG8 LR1120 391 391A SR1120 LR55 ...

Amazon.com

AG8 Alkaline 1.5V Button Cell Battery Single Use ・ 1.5V, 10 Pieces ・ 10 Pieces per Card ・ 1.55V Silver Oxide 391 Watch Battery (2 Count) line Battery ...

List of battery sizes

Wikipedia

AG8/SG8 LR55. Nominal voltage is 3.7 V. Specifications, dimensions, and technical data for consumer battery types A growing list of battery equivalents and ...

AG8 / 381 / 391 / LR1120 Button Batteries (10 Card)

Only Batteries

Specifications. Chemistry: Alkaline; Voltage: 1.5 Volt; Dimensions: 11.6 mm x 2.1 mm; Brand: Camelion. Ideal for the following applications.

MICRO BATTERY Cross Reference and Replacement Guide

Biz.maxell

AG8. 7.9×3.6. 0.311×0.142. 1.5. LR41. 192. RW87. V3GA. L736. GP192. LR41. G3A. 20.0×3.2. 0.787×0.126. 3.0. CR2032. ECR2032. DL2032. KECR2032. CR2032. CR2032. SB ...