In the world of rechargeable batteries, particularly the popular 18650 models, consumers often encounter two distinct types: flat top and button top. These variations, while subtle in appearance, have significant implications for compatibility and usage in various devices. This blog post will explore the differences between flat top and button top batteries and guide you through a simple DIY method to convert a flat top battery into a button top.
What are Flat Top and Button Top Batteries?
Flat Top Batteries: Flat top batteries are characterized by a completely flat positive end. This design is sleek and is often used in battery packs where multiple cells are connected together, as they fit snugly without additional protrusions. Flat tops are the type predominantly stocked at Batteryverse due to their versatility in various applications.
Button Top Batteries: Button top batteries feature a protruding positive terminal that looks like a small button. This design is crucial for devices where the battery needs to make a firm contact with the power connector, typically in single battery devices like flashlights, certain types of cameras, and other electronic gadgets that require a distinct protrusion for a secure connection.
Compatibility and Usage
The primary consideration in choosing between flat top and button top batteries lies in device compatibility. Button tops are essential for devices designed with a deep battery compartment where the extra length ensures proper contact. Conversely, flat top batteries are preferred in more compact devices and in configurations where batteries are stacked end to end.
DIY Conversion: Turning a Flat Top into a Button Top
While it’s always best to use the battery type specified by your device’s manufacturer, there are instances where you might need to adapt a flat top battery to fit a device requiring a button top. Here’s a simple DIY method to achieve this:
Materials Needed:
- Flat top 18650 batteries
- Small neodymium magnets (appropriate diameter to fit the battery)
- Electrical tape for insulation (optional)
Steps:
- Test Fit: Before starting, ensure the magnet fits well on the flat top battery. It should cover the positive terminal without hanging over the edges.
- Place the Magnet: Carefully place the magnet on the positive terminal of the flat top battery. The magnet effectively acts as a makeshift button top, adding the necessary protrusion.
- Secure the Magnet (Optional): If there’s any risk of the magnet shifting or you need to ensure it stays in place during use, you can lightly secure it with electrical tape. Be sure not to cover the sides of the battery, as this can interfere with its placement in the charger or device.
- Check Device Fit: Insert the modified battery into your device to check for proper fit and connectivity. Ensure the device turns on and functions as expected.
Safety Note: While this DIY solution can be effective, it's crucial to proceed with caution. Always ensure that the magnet is securely attached and will not dislodge during use, as this could cause short circuits or damage to your device. Additionally, this method should only be used as a temporary solution or when you’re in a pinch. For long-term use, purchasing the correct battery type recommended by your device’s manufacturer is always advised.
Understanding the differences between flat top and button top batteries ensures you choose the right type for your specific device needs. While the DIY method to convert a flat top into a button top can help in certain situations, it’s crucial to prioritize safety and compatibility to prevent any potential issues. At Batteryverse, we specialize in providing genuine and high-quality flat top batteries, ensuring you get reliable and effective power solutions for all your battery needs.