--- product_id: 271915830 title: "4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board" brand: "beffkkip" price: "1 zΕ‚" currency: PLN in_stock: false reviews_count: 8 url: https://www.desertcart.pl/products/271915830-4pcs-2a-5v-charge-discharge-integrated-module-3-7v-4 store_origin: PL region: Poland --- # 2A Fast Charging 4-in-1 Functionality Comprehensive Protection 4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board **Brand:** beffkkip **Price:** 1 zΕ‚ **Availability:** ❌ Out of Stock ## Summary > πŸ”Œ Charge Ahead with Confidence! ## Quick Answers - **What is this?** 4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board by beffkkip - **How much does it cost?** 1 zΕ‚ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/271915830-4pcs-2a-5v-charge-discharge-integrated-module-3-7v-4) ## Best For - beffkkip enthusiasts ## Why This Product - Trusted beffkkip brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Versatile Application:** Perfect for DIY electronics and mobile power solutions. - β€’ **Power Up Your Projects:** Seamlessly integrates charging, discharging, and protection. - β€’ **Automatic Load Detection:** Intelligent output management based on load requirements. - β€’ **Smart Protection Features:** Over-current, over-voltage, and short circuit safeguards. - β€’ **User-Friendly Trigger Mode:** Easily control output with a simple key press. ## Overview The 4pcs 2A 5V Charge Discharge Integrated Module is a versatile PCB board designed for 18650 lithium batteries, offering a comprehensive solution for charging, discharging, and protection. With advanced safety features and user-friendly controls, it's ideal for both hobbyists and professionals looking to enhance their electronic projects. ## Description It is made of electronic accessories, nickel plating on surface(anti-oxidatioan), inner conductor: pure copper.it is long lasting and durable for you to use. Parameter: Charging voltage: DC 4.5V-5.5V (DC 5V recommended) Charging current: 0-2.1A Charging quiescent current: 100uA Full voltage: 4.2V+ -1% Discharge current: 0-2.4A Discharge quiescent current: 50uA Discharge efficiency: up to 96% Output voltage: 5V Output current: 0-2.4A Ambient temperature: -20℃ to + 85℃ PCB board process: Shen Jin Size : 25 * 16 * 4mm The module comes with lithium battery protection function： Over-current protection (OCP) Overvoltage protection (OVP) Short Circuit Protection (SCP) Over-temperature protection (OTP) Charge and discharge power level 4 interval indicati Pin description: VIN: Charge Port Positive Input + GND: Charger Negative Input - BAT: Lithium Battery + GND: Lithium Battery - GND: Output Negative Output - OUT: Output Positive Output + KEY: Output Enable Trigger Port (Low Pulse Trigger) Applications: Car charging retrofit Driving recorder power supply Mobile power Portable devices such as mobile phones and tablets Package Including: 4 * 2A 5V Lithium battery charging protection module ## Features - 4 in 1 Charging + Discharging + Lithium Battery Protection + Battery Level Indicator Module. Lithium battery protection function: over-current, overvoltage, over-temperature, short circuit protection. - MCU users, if you accept a small load KEY can be connected to the microcontroller about 20s to provide a low level allows the module to continue working. Trigger mode: low level trigger (ground) - In discharge mode (The charging mode KEY function is invalid), trigger the KEY port once to open the output; continuously trigger the KEY port twice to close the output. - The first time the load is connected, the output is automatically turned on. If the load is less than 50MA, the output will be automatically turned off after 30 seconds; if the load is greater than 50MA, the output will be automatically turned on. - Allow discharge while charging. (Note: At this time output voltage 4.7 / 5V) ## Product Details - **Brand:** Beffkkip - **Color:** Black - **Item Weight:** 0.32 Ounces - **Input Voltage:** 5 Volts - **Output Voltage:** 5 Volts ## Images ![4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board - Image 1](https://m.media-amazon.com/images/I/71+4bRyzIqL.jpg) ![4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board - Image 2](https://m.media-amazon.com/images/I/71gjexseuyL.jpg) ![4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board - Image 3](https://m.media-amazon.com/images/I/61HkchPEMqL.jpg) ![4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board - Image 4](https://m.media-amazon.com/images/I/7149Gc7YDRL.jpg) ![4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery Charging Boosting Mobile Power Board - Image 5](https://m.media-amazon.com/images/I/61wTr8uSl2L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Charges a 3.7V Lithium battery with a 5V input, and Boosts the 3.7V to a 5V output. *by D***L on January 27, 2021* This is a nice little board. With 5V in, the board charges a 3.7V Lithium battery. When you remove the 5V input, the board boosts the 3.7V from the battery to a 5V output. Its a charger and a booster in one board. There is not a lot of info for this board, but it appears to be a clone of a IP5306, which I have included in the photos. The picture that is included on Amazon shows a 200mAh battery but I used it to charge my 5000mAh battery, which I also purchased on Amazon, awsome battery. It took 24hrs to fully charge my 5000mAh battery. The description says that you can charge and discharge at the same time, but I have not been able to get this to work. When I have 5V to the input pin, the output pin is low, or 0V. When I remove the 5V from the input, the output pin goes high, 5V. The only thing I can get the KEY pin to do is to shut the board down, whether charging or discharging, by holding it low, 0V, for 20 seconds. Also the push button on the board does the same thing, provides 0V to the KEY pin. My plan is to solder onto the LEDs and tie them into an Arduino and write a sketch to charge the battery if its below 25% and not in use. ### ⭐⭐⭐⭐⭐ Great Lithium Ion Charger *by T***S on March 23, 2023* I use these to charge old batteries from Switch controllers for hobby projects. Make sure you install the battery last so you will be less likely to fry the circuit. I have fried a few. Use tape to cover the solder leads if you need to. The power plane pieces are very close and slightly difficult to solder. But with patience, you can do it!They also work with bigger batteries like this!https://www.amazon.com/gp/aw/d/B0B4DRZBWX?psc=1&ref=ppx_pop_mob_b_asin_title ### ⭐⭐⭐⭐ Well buit. *by J***E on February 24, 2021* This was just right for my use, i hooked up a battery pack to it and the out to a bluetooth board amp, and a usb c female connector on the in to charge battery when ever i need to. Its very small so i can stuff it out of the way as long as i can get to the on button.100% recomend. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/271915830-4pcs-2a-5v-charge-discharge-integrated-module-3-7v-4](https://www.desertcart.pl/products/271915830-4pcs-2a-5v-charge-discharge-integrated-module-3-7v-4) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-26*