Battery Holder (Open) Multiple (20700, 21700) 1 Cell Solder Lug
The Keystone 1121 is a PCB-mount cylindrical battery holder manufactured by Keystone Electronics, designed to hold one large-format lithium-ion cell, specifically 20700 or 21700 battery sizes.
It features an open-frame holder design with solder lug (through-hole) terminals, allowing secure mechanical mounting and reliable electrical connection to a PCB. This type of holder is commonly used in high-capacity battery-powered systems where replaceable cylindrical cells are required.
Key Features
Battery Compatibility
Supports 20700 and 21700 cylindrical Li-ion cells
Designed for single-cell (1S) configurations
Mechanical & Mounting
Through-hole PCB mounting
Solder lug terminals for strong electrical and mechanical connection
Open-style holder for easy battery insertion/removal
Construction
Metal contacts for low resistance and durability
Designed to securely retain larger cylindrical batteries
Physical Characteristics
Height above PCB: approx. 17.27 mm
Part of Keystone 1100 series holders
Typical Applications
Battery-powered embedded systems
Portable power devices
Industrial electronics
High-capacity IoT or energy storage modules
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