Lr51 Battery
Overview
Product sourcing insights & recommendations
The 'LR51' battery is a miniature 1.5V alkaline button cell primarily identified in the industry by its standard equivalent AG0 or LR521. Market research indicates a robust growth for the global button cell segment, projected to reach $22.62 billion by 2026 ResearchandmarketsResearchandmarkets.
Product Insights & Specifications
The LR51 (AG0) is one of the smallest alkaline button cells, valued for its compact energy output in precision electronics AlibabaButtonbatterylithium.
- Dimensions: 5.8mm (Diameter) x 2.1mm (Height) Alibaba.
- Chemistry & Voltage: 1.5V Alkaline (LR51) or 1.55V Silver Oxide (SR521SW) for high-drain devices AlibabaResearchandmarkets.
- Key Equivalents: AG0, LR521, 379, G0, and SR521SW AlibabaButtonbatterylithium.
- Common Applications: Small analog watches, digital thermometers, laser pointers, and ultra-miniature calculators AlibabaChipmall.
Market & Trend Analysis (2026 Outlook)
The industry is currently shaped by three major forces:
- 1Miniaturization Demand: Increasing IoT integration in wearables (TWS, smart rings) is driving the need for ultra-small, high-pulse current batteries like the LR51 series ButtonbatterylithiumResearchandmarkets.
- 2Safety Regulation Shifts: Compliance with UL 4200A (Reese’s Law) in the US and EU Battery Regulation 2023/1542 is now a mandatory requirement for global retail, focusing on child-resistant packaging Buttonbatterylithium.
- 3Chemistries of Choice: While alkaline (LR) remains cost-effective for mass retail, there is a distinct shift toward rechargeable lithium-ion coin cells and mercury-free silver oxide (SR) variants for higher performance and sustainability LinkedinButtonbatterylithium.
Sourcing & Availability
Supply chain data shows that major production hubs in Shenzhen and Guangdong remain the primary sources for wholesale button cells, with prices ranging from $0.02 to $0.15 per unit depending on chemistry and order volume.
Lr51 Button Cell Battery Ag0 379 Sr521sw
Products · 2 lists
SR379W 521 Silver Oxide Metal Cell Battery SR63 AG0/LR69/SR521/379 Button Battery SR521SW 379 Primary Battery
Shenzhen Tcbest Battery Industry Co., Ltd.verified🇨🇳CN13 yrs
Wholesale Price Hot Seller Silver Oxide Button Cell 1.55V SR521SW 379 AG0 Watch Batteries for sony Maxell
Shenzhen Flyda Electronics Technology Co., Ltd.🇨🇳CN4 yrs
5PCS 100% Original for Sony 379 SR521SW AG0 D379 SR63 V379 1.55V Silver Oxide Button Coin Cell Batteries
Hot Selling Good Price 1.55v Watch Battery 379/521 Wholesale Button Batteries for sony
Remote Control Button Primary Batteries Alkaline AG0 LR63 LR179 LR521 for Toys Consumer Electronics Power Tools
Hunan Senwei New Energy Co., Ltd.🇨🇳CN6 yrs
AG0 521A LR521 V379 Alkaline Button Cell Battery
East(shenzhen) Technology Co., Ltd.🇨🇳CN9 yrs
Cuanen Ag0 Button Cell Battery 1.5V Button Cell Battery LR521 379A for Watch
Yiwu Chuangneng Battery Co., Ltd.🇨🇳CN4 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
Bootpwr 1.5V AG0 LR63 LR521 SR63 179 SR521SW Button Cell Alkaline Battery for Consumer Electronics Home Appliances & Toys
Huizhou Boot Energy Co., Ltd.verified🇨🇳CN4 yrs
1.55V SR521SW Silver Oxide Button Cell Battery for Watches Consumer Electronics Power Tools Toys & Boats-3 Year Shelf Life
Shenzhen Jbwcell Battery Co.,ltd🇨🇳CN9 yrs
SR626SW/364 SR920SW/371 SR626SW/377 SR927SW/395 SR416SW/337 SR521SW/379 Silver Oxide Button Cell Battery 1.55V Watch Battery
Yongzhou Picell Electronics Co., Ltd.🇨🇳CN12 yrs
1.55V 377 SR621SW AG1/4 D364 SR63 V379 626 1.55V Silver Oxide Coin Cell Batteries for Watch Toy MADE in JAPAN
Guangzhou Liwan Youcheng Electronic Business Department🇨🇳CN7 yrs
SCRCEO AG0 Coin Battery LR521 379 LR63 Button Cell Coin Alkaline Battery 1.5V Blister Card Primary Battery
Good Price SR521SW 1.55v Silver Oxide Button Cell Battery for Smart Watches Toys and Mp3
Shenzhen Hengxin Ertai Electronic Technology Co., Ltd.🇨🇳CN11 yrs
0%HG SR521SW Battery/379 1.55v Silver Oxide Button Cell Battery for Sony Watches
Yongzhou Picell Electronics Co., Ltd.🇨🇳CN12 yrs
SR621SW/364 SR626SW/377 SR927SW/395 SR920SW/371 SR521SW/379 Silver Oxide Button Cell Battery 1.55V Watch Battery
Hunan Pinsheng Energy Technology Co., LTD.🇨🇳CN5 yrs
Best Price 1.55V Button Cell Battery 0% Hg 377 SR626SW LiCoO2 Cathode 300 Cycles Watch Battery
Meizhou Jinxing Technology Co., Ltd.🇨🇳CN4 yrs
Lithium Button Cell Coin Battery SR416SW SR44SW SR521SW SR621SW SR626SW SR726SW SR754SW SR920SW SR927SW SR936SW SR1120SW SR1130
Dongguan Mingtaihe Electronics Co., Ltd.🇨🇳CN1 yr
1.5v Alkaline Button Cell Batteries AG4 377A 377 LR626 LR66 Watch Battery
Suzhou Nanguang Battery Co., Ltd.verified🇨🇳CN17 yrs
Watch Batteries Sr920sw Sr920 371 Ag6 Ag10 1.5v Pkcell 1.5v Button Coin Cell Battery Sr621sw Watch Battery
Shenzhen Pkcell Battery Co., Ltd.verified🇨🇳CN20 yrs
371 Factory Sr Button Cell Watch Battery 1.55V SR920SW
Hunan Pinsheng Energy Technology Co., LTD.🇨🇳CN5 yrs
New Selling Cheap Price High Quality 1.55V Button Battery for Electronic Product 0% Hg 377 Button Cell 626 Ag4 Watch for sony
LR66 AG4 SR626SW 377 376 Premium 1.5V Alkaline Button Coin Cell Batteries CE Certified for Remote Control Consumer Electronics
Ningbo Johnson New Eletek Co., Ltd.verified🇨🇳CN3 yrs
Wholesale Factory 0%Hg SR626SW Button Cell Watch Battery 377 Coin Silver Oxide Battery
Shenzhen Dali Technology Co., Ltd.🇨🇳CN10 yrs
1.5V Alkaline Button Cell Battery AG4 LR626 377A 377 SR626 Watch Battery
Shenzhen Ljcell Co., Ltd.🇨🇳CN15 yrs
MADE in China Wholesale AG4 SR626SW SR66 377 371 Button Cell Watch Coin Battery
Shenzhen Green Power Energy Battery Co., Ltd.🇨🇳CN7 yrs
High Quality 1.5V Button Battery for Electronic Product 0% Hg 377 Button Cell 626 Ag4 for Watch
Foshan Hengxinyuan Electronics Co., Ltd.🇨🇳CN2 yrs1.5V Alkaline Button Cell Battery AG4 LR626 377A 377 SR626 Watch Battery
MADE in China Wholesale AG4 SR626SW SR66 377 371 Button Cell Watch Coin Battery
High Quality 1.5V Button Battery for Electronic Product 0% Hg 377 Button Cell 626 Ag4 for Watch
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Sources & References
18 sources cited · Verified industry data & reports
Button Battery Cross Reference Guide
Shelfkey.com
Energizer Applications Diameter (mm) (mm) Voltage (V) (mAh) (Everready) Battery Alkaline Battery Lithium. SB-T51 – – CR2032 Memory 2.5 3.0 150 CR2025
MICRO BATTERY Cross Reference and Replacement Guide
Biz.maxell
MICRO BATTERY Cross Reference and Replacement Guide. Nominal Voltage (V) Silver Oxide Battery Micro Alkaline Battery Lithium Manganese Dioxide Battery Watch ...
LR44 Battery Equivalents: What Are Your Options?
Ersa Electronics
Small, round alkaline button cell batteries, or LR44s, are widely used in toys, cameras, calculators, and watches.
LR41 Battery Equivalent: Features, and Applications (2024 ...
Blikai
LR41 batteries are commonly used in various electronic devices because they are small but powerful. Watches, calculators, medical devices, ...
LR51 Battery Buying Guide: Specs, Equivalents & Wholesale
Alibaba.com
Common Equivalents: AG0, LR521, 379, G0, and SR521SW (Silver Oxide version) Alibaba. Key Specifications: Nominal voltage of 1.5V, typical diameter of 5.8mm, and ...
LR/L, SR, AG, CR/BR and GP Battery Equivalent ...
IC Components
Types and Applications: LR/L Alkaline Batteries: Battery Equivalent: 171, 370, D370, 371, 371A, 371B, D371, V371, GP371, SP371, SP371,