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Li-ion battery 4000mAh 3.7V-Batteries & Power supplies
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  • Li-ion battery 4000mAh 3.7V-Batteries & Power supplies
  • Li-ion battery 4000mAh 3.7V-Batteries & Power supplies
  • Li-ion battery 4000mAh 3.7V
Li-ion battery 4000mAh 3.7V
SKU: 333287
€14,50

Add-Ons

24/7 lifetime customer and technical support

2-year Warranty -no questions asked

Comprehensive Documentation

Open-source everything

Description

This lithium-ion battery is small, light and durable. Through standard JST 2mm female connector, it will yield 3.7V which will supply your projects for a whole day (and night!). Furthermore, the battery has an implemented protection system, which prevents high voltages ( prevents over-charging), undervoltage and short circuit. That way it protects the battery, increases its lifetime and protects you from possible accidents!

DISCLAIMER: This battery has to be charged with a special charged that uses CC/CV principle. Li-ion batteries are dangerous! Read our tutorial (link in the top right corner) before use.
Complimentary technical support

In case you ever get stuck with using this product, you can count on us. We provide free, no-strings-attached technical support with this product. Just reach out to us with your questions, and we'll be there to help you.
Open-source

Open-source culture is rooted deep inside us, and that’s reflected in our products. This product follows the open-source principle. It was made with the community’s suggestions and needs in mind. With a modular design, it can be modified to your needs and incorporated into your projects. We provide all the design documentation needed free of charge on our Github repository.
Qwiic

Our Qwiic ecosystem provides plug‑and‑play connectors for solderless connections, enabling you to add sensors and modules without wiring errors. Get up and running in seconds, whether you’re a beginner or a professional. Full documentation is available on our Qwiic page so you can explore all features and supported modules.
Made in EU

Soldered products, designed and manufactured in Croatia, are thoroughly tested and meet the highest EU standards of quality and safety.

Technical Specifications

  • Nominal voltage: 3.7V
  • Capacity: 4000mAh, 14.8Wh
  • Standard JST-PH-2mm connector
  • Dimensions: 81.1 x 50 x 7.7 mm / 3.2 x 2 x 0.3 inch

Resources & Documentation

DEVELOPMENT & RESOURCES
PRODUCT DATASHEET PRODUCT DATASHEET HARDWARE DETAILS
DOCUMENTATION & TUTORIALS
FULL PRODUCT DOCUMENTATION

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