How to Use My battery case: Examples, Pinouts, and Specs

The My Battery Case is a protective enclosure designed to house and secure two 18650 lithium-ion batteries. It is commonly used in portable electronics, DIY projects, and devices that require a compact, reliable power source. The case provides easy access to the battery terminals for electrical connections while ensuring safety and durability.

• Portable power packs
• DIY electronics projects
• Custom-built flashlights
• Remote control devices
• Backup power for small electronics

• Battery Compatibility: 2 x 18650 lithium-ion batteries
• Material: Durable plastic or other insulating material
• Terminals: Positive and negative terminals for each battery
• Safety Features: Overcharge and discharge protection (if applicable)

1. Battery Installation:

   • Open the battery case.
   • Insert the two 18650 batteries in the correct orientation, ensuring the positive and negative ends match the case's markings.
   • Close the case securely.

2. Making Connections:

   • Connect the positive terminal of the battery case to the positive input of your device or circuit.
   • Connect the negative terminal of the battery case to the negative input of your device or circuit.

3. Powering an Arduino UNO:

   • Since the Arduino UNO operates at 5V and the 18650 batteries provide a nominal voltage of 3.7V each, a step-up voltage regulator may be required if batteries are used in parallel. If used in series, ensure that the voltage does not exceed the maximum input voltage of the Arduino UNO.

• Always check the polarity before making connections to prevent damage.
• Do not mix old and new batteries or batteries of different capacities.
• Ensure that the batteries are properly seated and that the case is closed to prevent short circuits.
• If the case includes a built-in protection circuit, do not bypass it.
• Remove batteries if the case will not be used for an extended period.

• Battery case does not power the device: Check the battery orientation and ensure the case is closed properly. Also, verify that the batteries are charged.
• Intermittent power: Ensure that the terminals are clean and that there is a good connection between the batteries and the case terminals.

• If the device is not powering on, double-check the connections and the charge of the batteries.
• Clean the terminals with a dry cloth if there is any corrosion or residue.
• Ensure that the case is not physically damaged and that the batteries are in good condition.

Q: Can I use rechargeable 18650 batteries with this case? A: Yes, the case is designed for 18650 batteries, which are typically rechargeable.

Q: Is it safe to carry the battery case in my pocket? A: It is generally safe if the case is properly closed and the batteries are secured. However, avoid carrying loose metal objects that could short the terminals.

Q: How do I know if my batteries are compatible with this case? A: Ensure that your batteries are 18650 size and that they do not exceed the maximum voltage and current ratings of the case.

Q: Can I use this battery case to power an Arduino UNO directly? A: Yes, but you may need a voltage regulator if the combined voltage of the batteries exceeds the recommended input voltage for the Arduino UNO.

Q: Does the battery case include overcharge protection? A: This depends on the specific model of the case. Some cases include built-in protection circuits, while others do not.

Note: The information provided in this documentation is based on a generic 218650 battery case. Specific features and specifications may vary depending on the manufacturer and model.*