What People Say
Perfect for my 18650 battery pack builds; now I can charge everything via USB-C.
Incredibly cheap and works exactly as advertised for my 3S RC project.
Small, efficient, and saved me a lot of space in my custom speaker enclosure.
Problem & Solution
Charging multi-cell LiPo batteries has traditionally required bulky, expensive power adapters or specialized balanced chargers that are difficult to transport. If you are a DIY enthusiast or hobbyist building custom portable devices, you likely struggle with finding a compact way to charge 7.4V, 11.1V, or 14.8V packs using modern, universal USB-C power sources.
This Multi-Cell Step-Up Boost Charger solves this headache by turning your standard Type-C wall brick or power bank into a versatile charging station. It bridges the gap between low-voltage USB power and the higher voltage requirements of 2S, 3S, and 4S batteries, allowing you to ditch the proprietary cables and charge your projects anywhere with ease.
Who Is It For?
This module is designed for electronics hobbyists, RC enthusiasts, and DIY makers who build custom battery-powered projects using 18650 cells or LiPo packs. It is perfect for those who prioritize portability and want to standardize their charging setup to USB-C.
It is also an ideal solution for students and engineers prototyping small robotics, portable Bluetooth speakers, or custom LED lighting rigs that require a reliable, multi-cell power management system without the high cost of industrial-grade charging boards.
Key Features
- Type-C InputEnables universal charging using standard smartphone adapters and power banks.
- Adjustable 2S/3S/4S SupportAllows you to charge a wide variety of battery configurations with a single module.
- Efficient Step-Up Boost ConversionConverts 5V input into the precise 8.4V, 12.6V, or 16.8V needed for full cell capacity.
- Compact PCB DesignEasily integrates into tight project enclosures or small 3D-printed battery housings.
- Budget-Friendly PricingOffers professional charging functionality for just $1.51, making it perfect for bulk prototyping.
Pros & Cons
Pros
- Incredible value for the price
- Standardizes charging to convenient USB-C
- Lightweight and compact for portable builds
- Versatile voltage output settings
Cons
- Requires manual configuration for cell count
- No built-in status LEDs on some variants
FAQ
No, this is a boost charging module. It is recommended to use protected cells or a separate BMS for long-term cell health.
Yes, as long as your power adapter provides sufficient current, this module will effectively boost the 5V input to your target voltage.
Like any DIY charging module, it is best practice to supervise charging and use it in conjunction with a proper Battery Management System (BMS).
You typically configure the voltage output by bridging the designated pads on the PCB according to the provided wiring diagram.
Final Verdict
For just $1.51, this multi-cell boost charger is an absolute steal for any maker. While it lacks the advanced features of high-end balanced chargers, its ability to convert Type-C power into 2S-4S charging voltages is unmatched at this price point. It is a reliable, compact, and highly functional tool that simplifies the way you power your custom lithium-based projects.