How can I use my 3.7Volt lithium as a 9V battery?
But don't want to use 3 of them in series.
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Hi
This can be done by a small boost module like Adjustable Boost Module SX1308 2A (botshop.co.za)
The Adjustable Boost Module SX1308 2A is a remarkable little device with several features that make it stand out:
- Compact Size: Despite its small form factor, this module packs a punch. It’s designed for portability and convenience.
- Output Voltage Range: The module can generate output voltages ranging from 2V up to 28V. This flexibility makes it suitable for various applications.
- Built-in Protections:
- Short Circuit Protection: The module guards against short circuits, preventing damage to itself or connected components.
- Overheating Protection: It also has safeguards to prevent overheating during operation.
- Adjustable Output Voltage:
- The module features a 10K potentiometer that allows you to fine-tune the output voltage.
- To set it up, connect the module to a power source (between 2V and 24V), measure the output, and adjust the potentiometer until you achieve the desired voltage.
- Note that you might need to turn the potentiometer a few times before seeing a change in the output voltage.
- The 2A is a max short circuit for a 1Sec before it will run into problems.