Recent News

Newsletter-Oct-2025-Vol-13

October 17, 2025

Volume 13 | Oct 2025

 

Innovative Battery Products from Keystone

 

Retainers for 4.8mm ML414 Micro Batteries

 

Keystone offers a Miniature Lithium button cell retainer suited for most portable medical devices such as hearing aids, diabetic monitoring devices, implantable optics and others utilizing high density PCB packaging  

 

These retainers accepts all ML414 micro Lithium batteries from all major manufacturers. Retainers are manufactured of Phosphor Bronze. Surface Mount versions are supplied with Gold Plate, Thru-Hole Mount version is supplied with a Tin-Nickel Plate.

 

 

Cat. # 2994 - Surface Mount; Bulk packaging

Cat. # 2994TR - Surface Mount, Tape & Reel packaging compatible with most vacuum and mechanical pick and place assembly systems

Cat. # 2995 - Thru-Hole Mount, Bulk packaging

 

Click here to learn more about Keystone's 4.8mm ML414 retainers

Coiled PC/Case Mount Battery Contacts 

 

To support the increasing demands for higher energy, lower weight cylindrical battery usage, Keystone has introduced our latest coil spring contacts designed to slide-into molded cases with no wire lead, direct placement onto a PCB.

 

Engineered with a contact design that adjusts to variations in battery length, these contacts assure low contact resistance and dependable connectivity.

 

These contacts also offer the convenience of being drop in replacements for standard leaf spring contacts. Contacts can accommodate cylindrical batteries styles including A, AA, AAA and, CR2 cells virtually eliminating the need to specify brand and style.

 

Manufactured from .024" (.61mm) Steel Wire with Nickel Plating for superior performance in today's high tech devices.

 

Negative Contacts

Cat. # 243 - For A, AA, CR2 Cells

Cat. # 180 - For AAA, AAAA, N, A23, A27 Cells

 

Positive Contacts

Cat. # 242 - For A, AA, CR2 Cells

Cat. # 179 - For AAA, AAAA, N, A23, A27 Cells

 

Dual Contacts

Cat. # 244 - For AA, CR2 Cells

Cat. # 181 - For AAA Cells

 

Click Here to learn more about the innovative and cost effective slide in battery contacts

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Contact Us

Request our 75th Anniversary Catalog K75

 

 


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