Battery Holder (Open) 18650 1 Cell SMD (SMT) Tab
The Keystone 1042 is a surface-mount battery holder designed by Keystone Electronics for 18650 cylindrical lithium-ion batteries. It is used to securely mount and electrically connect a single 18650 cell directly onto a PCB.
It is commonly found in battery-powered embedded systems, backup power modules, industrial controllers, and portable electronics where reliable and tool-less battery replacement is needed.
Key Features
Battery Type
Supports 1 × 18650 lithium-ion cell
Surface Mount (SMT) Design
Directly solderable to PCB for automated assembly
High-Temperature Nylon Housing
Suitable for reflow soldering processes
Secure Battery Retention
Holds the cell firmly in place while allowing easy insertion/removal
Tool-Free Battery Replacement
No tools required to install or remove the battery
Polarized Design
Prevents incorrect battery insertion
Durable Contacts
Typically tin-plated or gold-plated bronze contacts for reliable conductivity
Wide Temperature Range
Industrial-grade operation suitable for harsh environments
RoHS Compliant
Environmentally compliant construction
Typical Applications
Battery backup systems (RTC / memory backup)
IoT and embedded devices
Industrial control boards
Portable electronics
Data loggers and monitoring systems
Consumer battery-powered products
#Battery-Holder