SPIDER Automation | 18650 Dual SMD/SMT PCB Battery Holder | Independent 2-Cell Series & Parallel Configuration
Product Overview
The SPIDER Automation 18650 Dual SMD/SMT PCB Battery Holder is a compact battery mounting component designed to accommodate two standard 18650 cylindrical lithium-ion cells on a printed circuit board. It provides a dedicated mechanical and electrical contact arrangement for integrating replaceable rechargeable cells into electronic equipment and custom PCB designs.
A key feature of this holder is its independent battery contact arrangement. The two cell positions are not internally interconnected, allowing each battery to remain electrically separate within the holder. This enables circuit designers to use either cell individually or create external series and parallel connections through suitable PCB copper tracks or circuit wiring.
The holder features SMD/SMT mounting contacts for surface-mount PCB integration, along with gold-plated contact points as specified by the supplier. Its spring-style retaining contacts help maintain battery positioning and allow convenient cell replacement. With an overall size of approximately 78×40×15mm, it is suitable for electronic designs requiring a dual 18650 battery mounting arrangement without loose battery-holder wiring.
Technical Features & Construction
- Dual 18650 Battery Capacity: Designed to hold two standard 18650 cylindrical lithium-ion cells.
- Independent Battery Positions: The two cell positions have separate contacts and are not internally connected to each other.
- SMD/SMT Mounting: Features surface-mount terminals for integration onto a compatible printed circuit board.
- Gold-Plated Contact Points: The supplier specifies gold plating on the battery contact points.
- Spring-Style Battery Contacts: Retaining contacts help hold the installed cylindrical cells in position.
- ABS Body Material: The specification table identifies ABS as the body material.
- Compact PCB Design: Overall dimensions of approximately 78×40×15mm support integration into suitable electronic assemblies.
- Individual Cell Accessibility: Each battery position can be used separately through an appropriately designed external circuit.
- Flexible Electrical Configuration: Supports external series or parallel connections through the PCB design.
- Replaceable Battery Arrangement: Allows installed cells to be removed and replaced without replacing the PCB-mounted holder.
Independent Cell Configuration & Electrical Connections
Unlike battery holders with internally connected cells, this dual 18650 holder provides two electrically independent battery positions. The positive and negative contacts of each cell are separately available at the holder’s PCB terminals. This gives the circuit designer flexibility to determine how the two cells are used.
- Separate Cell Operation: Each 18650 battery can supply its own independent circuit connection when the PCB is designed accordingly.
- Series Connection: External PCB connections can connect the positive terminal of one cell to the negative terminal of the other. Two conventional 3.7V nominal lithium-ion cells then provide approximately 7.4V nominal.
- Parallel Connection: External PCB connections can connect positive terminals together and negative terminals together. With compatible cells, this provides approximately 3.7V nominal with increased combined capacity.
- Independent PCB Routing: The separate contact arrangement allows the designer to implement the required electrical topology using suitable PCB tracks or wiring.
- Flexible Power Design: The same holder design can be incorporated into different circuit configurations, provided the PCB connections and battery requirements are appropriate.
Important: Series and parallel connections are not internally provided by the holder. They must be implemented through the external PCB circuit. The holder does not include a BMS, voltage regulator, charging circuit or battery protection circuitry.
PCB Mounting & Mechanical Integration
The holder is designed for surface-mount PCB assembly. Its SMD/SMT contact terminals are intended to be soldered onto a compatible PCB footprint, providing a board-mounted battery arrangement without requiring separate loose holder wires.
- Surface-Mount Installation: Designed for mounting on a compatible PCB using an appropriate soldering process.
- PCB Footprint Matching: The board layout must match the actual terminal locations and dimensions of the holder.
- Direct Board Integration: Allows battery contacts to connect to the PCB circuit through the holder’s mounting terminals.
- Compact Assembly: Its 78×40×15mm form factor supports integration into suitable electronic enclosures.
- Replaceable Cells: Batteries can be removed and replaced while retaining the PCB-mounted holder.
Contact Design & Battery Retention
The holder uses metal battery contact elements to establish electrical contact with the installed cells. The supplier specifies gold-plated contact points and describes spring-style retaining elements that help maintain the battery position.
- Gold-Plated Contact Surface: Gold plating is specified for the battery contact points.
- Spring Retention: Spring-style contacts help maintain physical contact with the installed battery terminals.
- Battery Replacement: The contact arrangement supports removal and replacement of compatible 18650 cells.
- Separate Contact Paths: Each battery position has its own independent electrical contact arrangement.
Functional Advantages
- Flexible Battery Design: Independent cell contacts allow different external circuit configurations.
- Single or Dual Cell Use: The holder can accommodate two cells while allowing individual cell connections through the PCB.
- Series and Parallel Options: Supports both configurations through suitable external PCB routing.
- PCB-Based Installation: SMD/SMT mounting avoids the need for separate loose holder wires.
- Gold-Plated Contacts: Provides specified gold-plated contact surfaces for battery connection.
- Replaceable Battery System: Allows compatible cells to be changed without replacing the holder.
- Compact Dual-Cell Layout: Provides two battery positions in a single PCB-mountable component.
Applications
The 18650 Dual SMD/SMT Battery Holder is suitable for PCB-based electronic designs requiring one or two replaceable cylindrical lithium-ion cells. Potential applications include:
- Custom 18650 Battery Circuits: Integrating two independently accessible cylindrical cells into custom PCB power designs.
- Portable Electronic Devices: Providing replaceable 18650 battery mounting for compatible portable equipment.
- Embedded Systems: Integrating dual-cell battery power into compact embedded electronic boards.
- Industrial Control Boards: Providing PCB-mounted battery positions in suitable industrial electronic control designs.
- Robotics Electronics: Supporting custom battery-powered robotic controllers and electronic modules.
- IoT Devices: Integrating replaceable lithium-ion cells into suitable Internet of Things equipment.
- Battery Backup Circuits: Supporting compatible battery-backed electronic systems with appropriately designed external connections.
- Portable Instrumentation: Providing dual-cell mounting for compatible handheld measurement and monitoring equipment.
- Electronic Prototyping: Supporting experimental PCB designs with configurable 18650 battery connections.
- Series Battery Power Supplies: Implementing a two-cell series arrangement for circuits designed around a higher nominal battery voltage.
- Parallel Battery Power Systems: Implementing a two-cell parallel arrangement for compatible circuits requiring increased battery capacity.
- Custom PCB Development: Providing a surface-mount dual 18650 holder for prototype and production electronic boards.
Package Contents
- 1 × 18650 Dual SMD/SMT PCB Battery Holder
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | Dual 18650 Battery Holder |
| Compatible Battery Type | 18650 Cylindrical Lithium-Ion Cell |
| Number of Cells | 2 |
| Internal Cell Connection | Independent / Not Internally Connected |
| External Configuration | Separate, Series or Parallel via External PCB Connections |
| Mounting Type | SMD / SMT Surface Mount |
| Body Material | ABS (as specified by supplier) |
| Contact Material | Stainless Steel (as specified in the specification table; description also mentions bronze) |
| Contact Point Plating | Gold |
| Contact Design | Spring-Style Battery Contacts |
| Colour | Black |
| Operating Temperature | -40°C to 180°C (supplier-stated; verification required) |
| Length | 78mm |
| Width | 40mm |
| Height | 15mm |
| Product Weight | 18g |
| Package Quantity | 1 Piece |
| Shipping Weight | 0.02kg (20g) |
| Shipping Dimensions | 8 × 5 × 2cm |
Installation & Operating Recommendations
- Cell Compatibility: Use standard 18650 cylindrical cells that match the holder’s physical dimensions and contact arrangement.
- PCB Footprint: Confirm the actual SMD terminal positions and dimensions before designing the PCB footprint.
- External Connection Design: Implement the required separate, series or parallel configuration through correctly designed PCB connections.
- Series Operation: When using two conventional 3.7V nominal cells in series, account for approximately 7.4V nominal and 8.4V at full charge.
- Parallel Operation: Use compatible cells with matching chemistry, voltage, capacity and charge condition before connecting them in parallel.
- Battery Protection: Incorporate a correctly rated BMS and suitable charging and protection circuitry in the completed battery system.
- PCB Soldering: Use an appropriate surface-mount soldering process and avoid excessive heat that could damage the holder or contact components.
- Electrical Ratings: Confirm the holder’s current-carrying capacity and contact resistance before selecting it for a high-current application. These values are not supplied.
- Cell Replacement: Install and remove batteries carefully to avoid bending or damaging the spring contacts.
- Battery Safety: Prevent accidental short circuits and use suitable insulation and mechanical enclosure protection in the completed assembly.
