L521 Battery
Overview
Product sourcing insights & recommendations
The L521 battery (also known as SR521SW, AG0, or 379) is a specialized 5.8mm button cell essential for precision electronics. The market for these primary batteries is projected to grow steadily through 2026, driven by the miniaturization of consumer wearables and portable medical devices.
Key insights from the research include:
- Versatile Equivalents: It is widely interchangeable with codes like 379, V379, and AG0, which is critical for consumer search and compatibility.
- Chemistry Choice: Silver Oxide variants are preferred for stable performance in watches, while Alkaline (AG0) offers a cost-effective solution for toys and gadgets.
- Sourcing Advantage: Wholesale prices are highly competitive, ranging from $0.01 to $0.08 per piece, with significant bulk discounts available from manufacturers in Shenzhen and Huizhou.
Detailed specifications, 2026 market projections, and a curated list of top suppliers are provided in the comprehensive report below.
The L521 market analysis is complete. To proceed with your sourcing or development, you can:
L521 Battery Button Cell
Products · 2 lists
Mercury Free 1.5V AG Series Button Cell Battery LR521 Ag0 for Watch/car/Calculator
East(shenzhen) Technology Co., Ltd.🇨🇳CN9 yrs
AG1 Watch Battery 1.5v Button Cell Battery LR621
Huizhou Winpow Electronic Co., Ltd.verified🇨🇳CN14 yrs
Cuanen Ag0 Button Cell Battery 1.5V Button Cell Battery LR521 379A for Watch
Yiwu Chuangneng Battery Co., Ltd.🇨🇳CN4 yrs
SR521SW SR626SW SR754SW SR927SW Factory Silver Oxide Button Cell Watch Battery 1.55V
Yongzhou Picell Electronics Co., Ltd.🇨🇳CN12 yrs
1.5v Lr621 ag1 364a Zinc Manganese Button Cell Battery
Foshan Qide New Energy Technology Co., Ltd.verified🇨🇳CN18 yrs
1.5V AG Series Button Cell Battery LR521 Ag0 for Watch
Shenzhen Jbwcell Battery Co.,ltd🇨🇳CN9 yrs
Sunmol AG0 Coin Battery LR521 379 Button Cell Coin Alkaline Battery 1.5V Blister Card Primary Battery Two Years CE/SGS/TUV 10mah
DONGGUAN SUNMOL BATTERY CO., LTD.🇨🇳CN17 yrs
CR1225 Lithium Button Cell 3V 50mAh Coin Primary Battery
Shenzhen Qiyun Technology Co., Ltd.🇨🇳CN2 yrs
ANSMANN LIR2032 AEHZ-LB001 Button Cell Coin Cell 3.6V 45mAh Solid State Battery LiNiMnCoO2 Cathode 300-Cycle Life High Energy
Ansmann Electronics (Huizhou) Co., Ltd.🇨🇳CN4 yrs
CROWN C LR41 Powerful Manufacturer 0% Hg 1.5Volt Super Alkaline Button Cell Battery
Guangxi Agawo New Energy Technology Co., Ltd.🇨🇳CN6 yrs
CR2450 Button Cell Batteries 3v 580mah for Toys
Shuyang Xinneng Battery Co., Ltd.verified🇨🇳CN4 yrs
Factory Supply Cr2032 Cr2045 Button Cell 3v Lithium Battery Cr2450
Shenzhen Pkcell Battery Co., Ltd.verified🇨🇳CN20 yrs
LDMAX 1.5V 0% Hg Free AG13 LR44 Dry Cell Battery Alkaline Button Cell for Remote Control MSDS KC Certified Blister Package
Lida Zhaoneng Battery (Dongguan) Co., Ltd.🇨🇳CN3 yrs
5-Pack CR2450 Button Lithium Battery Cell 600mAh 3V For Long Lasting Power for Key Fob,Door Sensor, Security System
HK GMCELL TECHNOLOGY LIMITEDverified🇭🇰HK3 yrs
High Quality Lithium Button Cell CR2032 Battery Electronics Gift bluetooth Selfie Car Key Button Battery
Shenzhen Haishan Technology Co., Ltd.🇨🇳CN9 yrs
Factory direct sales 3v lithium button cell battery CR2032 with wires&pins&connector for mother board
Shenzhen Ljcell Co., Ltd.🇨🇳CN15 yrs
High Capacity 580mAh 3v Cr2450 Button Cell Lithium Battery Cr2450 Button Battery
Shenzhen Doublepow Energy Technology Co., Ltd.verified🇨🇳CN9 yrs
3V BR1225/Cr1225 Lithium Non-Rechargeable Button Cell Battery 48mAh LR6 for Remote Control & Home Appliances
Sino Technology Manufacturer Group Co., Ltd.verified🇨🇳CN5 yrs
GEB Factory Supply 3V CR1632 CR2032 CR927 CR Series Lithium Button Cell Li-MnO2 Battery
General Electronics Technology Co., Ltd.verified🇨🇳CN14 yrs
ENBAR CR2450 3.0V 550mAh Lithium Button Cell Battery
Shenzhen Enbar Tehcnology Co., Ltd.🇨🇳CN14 yrs
Alarm Remote Battery AG13 LR44 A76 Alkaline Button Cell Battery Toys Consumer Electronics
Shenzhen Kingkong Electronics Co., Ltd.🇨🇳CN18 yrs
Gaonengmax LR44 Battery Sales 0%Hg 0%Pb 0%Cd Button Cell Battery AG13 1.5V Button Battery
Shenzhen Green Power Energy Battery Co., Ltd.🇨🇳CN7 yrs
LR44 AG13 1.5V Alkaline Button Cell Battery A76 AG13 LR44 357A L1154 1.5 Volt Alkaline Coin Cell
Shenzhen Tcbest Battery Industry Co., Ltd.verified🇨🇳CN13 yrs
Lithium 3V Button Cell Battery CR2335 with Pins Solder Tabs 300mAh
Dongguan Youli Electronic Technology Limitedverified🇨🇳CN9 yrs
Round Lithium 600mAh Button Cell 3v Lithium Battery CR2450 Battery Cell
General Electronics Technology Co., Ltd.verified🇨🇳CN18 yrs
3V Button Cell Battery CR1025 with Solder Pins
Shenzhen Weijia Electronics Co., Ltd.🇨🇳CN8 yrs
High Performance LR44 AG13 1.5v Alkaline Button Cell Battery
Jiaxing Minimoon Battery Co., Ltd.🇨🇳CN8 yrs
Button cell battery LR44 Replaces AG13 357 76A A613 A76 D76A G13 G13A GPA76 KA76 L1154 LR1154 LR44H PX76A RW82 S76E SP76 V13GA
Shenzhen Jiaxinjie Technology Co., Ltd.🇨🇳CN9 yrs
CR2412 3V Lithium Button Cell Battery Limno2 Type for Consumer Electronics
Zhuangyue Technology Development (foshan) Co., Ltd.🇨🇳CN1 yr
Sharxell LR621 AG1 LR60 L621 1.5V 15mAh Mercury Free Alkaline Button Cell Industrial Bulk Packing
Golax Industrail Co., Ltd.🇨🇳CN25 yrsDeep Dive · Full Report
Full Market Report
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Sources & References
46 sources cited · Verified industry data & reports
SR521SW Battery Equivalent – Specifications, ...
LoveChip
V379. Varta. Silver Oxide. 1.55V · European equivalent ; SR521. Generic Code. Silver Oxide. 1.55V · Sometimes used interchangeably ; LR521 / AG0.
LR521, LR63, SR521, SR521S, SR521SW, SR63, 379, ...
Battery Equivalents
LR521 Battery Equivalent ... Alkaline 5.8 x 2.1 mm batteries are commonly labeled as LR512, LR63, AG0, 379 and similar - they are recognizable ...
Understanding the 364, AG1, LR621, and SR621SW ...
IC Components
The 364 and SR621SW are both silver oxide batteries, sharing nearly identical dimensions (6.8 mm in diameter and 2.1 mm in height) and ...
Sr521sw Battery Equivalent
Walmart
10pk Exell EB-L521 Alkaline 1.5V Watch Battery Compatible with AG0 SG521 SR521SW $19.95. 10pk Exell EB-L521 Alkaline 1.5V Watch Battery Compatible with AG0 ...
20x Vinnic L521 AG0 SR521W 384 1.5V Alkaline Watch ...
eBay
Battery size: L521. Type: Alkaline. Other designations: L521, AG0, 384, SR521W. Weight (of one battery): 0.6 g (0.001 lbs). Made in China.
LR621, SR621SW, 364, AG1 Battery Equivalents and ...
YIC Electronics
The following table offers an exhaustive cross-reference for SR621SW, LR621, 364/363, and AG1 battery models, detailing their characteristics and specifications ...