18650 2S Li-ion Battery Module (Type-C QC3.0 Fast Charging + Protection)
Twin 18650 fast-charge power bank — 15 W QC3.0 input, 7.4 V/6 A, 5 V/4 A and 3.3 V/2 A outputs with full protection, breadboard-mountable.
- Material
- Li-ion cells & PCB
- Age range
- 8+
- Category
- STEM Robotics & Electronics
- Customisation
- OEM & ODM available
Specifications, component counts and packaging are configurable. Figures shown reflect our standard configuration.
Key features
- Two 18650 cells in series with 15 W QC3.0 fast charging.
- Outputs: battery 7.4 V/6 A, 5.0 V/4 A and 3.3 V/2 A; 2.54 headers (3.3/5/7.4 V), XH2.54 (7.4 V) and USB-A (5 V).
- Over-charge, over-discharge, reverse-connection and short-circuit protection; breadboard-friendly structure.
- LEDs: green charge (on while charging, off when full, blinking on fault), blue trickle/constant-current indicator, red 3.3 V and 5 V discharge indicators.
- Trickle charging wakes deeply discharged cells at tiny current (output low); constant-current is the main fast-charge stage once voltage recovers (output high).
- Caution: observe polarity, charge to activate on first use, and never mix old and new cells with different voltage and internal resistance.
Frequently asked about this product
Can the 18650 2S Li-ion Battery Module (Type-C QC3.0 Fast Charging + Protection) be used in classroom and workshop setups?
Yes — the 18650 2S Li-ion Battery Module (Type-C QC3.0 Fast Charging + Protection) is designed for teaching and production-line use. It works with standard 5 V USB or battery supplies, connects through common headers or terminals, and ships with documentation and examples for Arduino IDE, Mixly and Mind+.
What voltage does the 18650 2S Li-ion Battery Module (Type-C QC3.0 Fast Charging + Protection) run on?
The 18650 2S Li-ion Battery Module (Type-C QC3.0 Fast Charging + Protection) runs from a standard 3.3-5 V DC supply (USB or the controller’s 5 V rail). It draws only a few milliamps in normal operation, so it is safe to power from the controller board itself for classroom builds.
What projects is the 18650 2S Li-ion Battery Module (Type-C QC3.0 Fast Charging + Protection) good for?
The 18650 2S Li-ion Battery Module (Type-C QC3.0 Fast Charging + Protection) is built for STEM and robotics education: classroom demonstrations, science-fair projects, robotics club builds and competition robots. It pairs with the rest of our module range — same connectors, same voltage, same toolchain — so students move from first circuit to competition robot without changing platforms.
What certification do the robotics and electronics products carry?
Controller boards, sensors and modules ship with CE marking and RoHS-compliant components, and the range is designed for classroom use under teacher supervision. Product-specific test reports and declarations of conformity are available for distributors on request.
What is the minimum order quantity, and can I get a sample first?
These are standard catalogue lines with stable production, so minimums are low and lead times are short. Samples ship within about a week and are normally credited against a first order. Mixed-SKU cartons are accepted for evaluation orders.
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Need pricing on this line?
Send your target quantity, destination market and any changes you need to artwork, colourway or packaging. We reply with a quotation and the applicable compliance route — usually within one working day.