--- product_id: 125427065 title: "6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module" brand: "makerfocus" price: "€ 17.01" currency: EUR in_stock: true reviews_count: 11 category: "Maker Focus" url: https://www.desertcart.fr/products/125427065-6pcs-2a-5v-charge-discharge-integrated-module-3-7v-4 store_origin: FR region: France --- # 2.4A max discharge current 4-in-1 charge/discharge/protect/indicator 4-layer battery protection system 6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module **Brand:** makerfocus **Price:** € 17.01 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Charge smarter, protect better, power longer. ## Quick Answers - **What is this?** 6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module by makerfocus - **How much does it cost?** € 17.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/125427065-6pcs-2a-5v-charge-discharge-integrated-module-3-7v-4) ## Best For - makerfocus enthusiasts ## Why This Product - Trusted makerfocus brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact & Pro-Ready:** Ultra-compact 25x16x4mm PCB with gold contacts, designed for easy integration into your next DIY or professional project. - β€’ **Smart Load Detection:** Automatically toggles output based on load, optimizing power use and extending battery life. - β€’ **Power Up with Precision:** Delivers stable 5V output at up to 2.4A for reliable device charging and operation. - β€’ **All-in-One Battery Guardian:** Integrated over-current, over-voltage, short circuit, and over-temperature protection keeps your 18650 cells safe and sound. - β€’ **Seamless Charge & Discharge:** Supports simultaneous charging and discharging, perfect for on-the-go power solutions. ## Overview The MakerFocus 6pcs 2A 5V Charge Discharge Integrated Module is a compact, high-efficiency PCB designed for 18650 lithium batteries. It combines charging, discharging, battery level indication, and multi-layer protection (over-current, over-voltage, short circuit, and over-temperature) into one module. With a stable 5V output at up to 2.4A and smart load detection, it’s ideal for powering portable devices, car charging retrofits, and DIY mobile power projects, ensuring safety and reliability in a sleek form factor. ## Description 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 indicate 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 Content: 6 * 2A 5V Lithium battery charging protection module Review: Good Charger Boards - Easy to connect (must have a good ability to solder wires to the board). Charges 18650 batteries while indicating the level of charge of the cell. The only thing I would change is to make the charge indicators different colors instead of all red LEDs. Review: Great for some but not for all. - The bad: It says 2.1A output current but I tested two of them and got ~250mA and other things you might not like is the four LEDs are on while charging and discharging (not good for low power circuits but good for showing remaining power) and the output is on (with no way to turn off) while charging. The good: The output voltage is a solid 5V and while pulling the max I got of ~250mA the voltage only dropped to 4.89V. You can take all the LEDs off without affecting the circuit or just leave the one "100%" marked one and it'll only turn on when fully charged. The form factor is great and the gold contacts are cool. TLDR: Not the best for higher current projects 250mA+ or low current projects under ~5mA! All numbers were my results, yours may differ. I like it. ## Features - β˜… 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) - β˜… 4 in 1 Charging / Discharging / Lithium Battery Protection / Battery Level Indicator Module. Lithium battery protection function: over-current, overvoltage, over-temperature, short circuit protection - β˜… 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 - β˜… 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 - β˜… Allow discharge while charging. (Note: At this time output voltage 4.7 / 5V) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PZT3ZW2 | | Best Sellers Rank | #394,591 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,733 in Power Converters | | Brand | MakerFocus | | Color | As Shown | | Customer Reviews | 4.3 out of 5 stars 246 Reviews | | Input Voltage | 5 Volts | | Item Dimensions | 0.98 x 0.63 x 0.39 inches | | Item dimensions L x W x H | 0.98 x 0.63 x 0.39 inches | | Manufacturer | MakerFocus | | Mfr Part Number | 1468720264RM7BC61XM | | Output Voltage | 5 Volts | | Plug Format | Type B | | Plug Type | Type B | | Power Source | rechargeable battery | | UPC | 673400168474 | | Unit Count | 6.0 Count | ## Product Details - **Brand:** MakerFocus - **Color:** As Shown - **Input Voltage:** 5 Volts - **Item dimensions L x W x H:** 0.98 x 0.63 x 0.39 inches - **Output Voltage:** 5 Volts ## Images ![6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module - Image 1](https://m.media-amazon.com/images/I/71PNAdxzBHL.jpg) ![6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module - Image 2](https://m.media-amazon.com/images/I/71FQ1c8Sa5L.jpg) ![6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module - Image 3](https://m.media-amazon.com/images/I/6182bO8yyaL.jpg) ![6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module - Image 4](https://m.media-amazon.com/images/I/71UsyLL2nQL.jpg) ![6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module - Image 5](https://m.media-amazon.com/images/I/61Q0O6FNtEL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Charger Boards *by G***B on December 21, 2025* Easy to connect (must have a good ability to solder wires to the board). Charges 18650 batteries while indicating the level of charge of the cell. The only thing I would change is to make the charge indicators different colors instead of all red LEDs. ### ⭐⭐⭐⭐⭐ Great for some but not for all. *by R***N on June 25, 2024* The bad: It says 2.1A output current but I tested two of them and got ~250mA and other things you might not like is the four LEDs are on while charging and discharging (not good for low power circuits but good for showing remaining power) and the output is on (with no way to turn off) while charging. The good: The output voltage is a solid 5V and while pulling the max I got of ~250mA the voltage only dropped to 4.89V. You can take all the LEDs off without affecting the circuit or just leave the one "100%" marked one and it'll only turn on when fully charged. The form factor is great and the gold contacts are cool. TLDR: Not the best for higher current projects 250mA+ or low current projects under ~5mA! All numbers were my results, yours may differ. I like it. ### ⭐⭐⭐⭐ Works great for charging, not so much for discharge *by R***E on June 10, 2025* I've seen many people complain about the 20-30 second shut off that occurs during low current. Personally I was able to resolve this issue by jumping a 100ohm resistor across the discharge line along side my load. So far this seems to be working, will update this if something changes. I wish there were perhaps a switch on circuit that could turn on or off that feature, it works well but the automatic shut off can be troublesome. ## Frequently Bought Together - 6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery Charging Boost Mobile Power Protection PCB Board Module - HiLetgo 10pcs 18650 Battery Clip 18650 Battery Holder 18650 Batteries Case for 18650 Battery with Connect Lead - DWEII 10PCS Type-C USB 5V 2A Boost Converter Step-Up Power Module Lithium Battery Charging Protection Board LED Display USB for DIY Charger (no Welding Version) --- ## 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.fr/products/125427065-6pcs-2a-5v-charge-discharge-integrated-module-3-7v-4](https://www.desertcart.fr/products/125427065-6pcs-2a-5v-charge-discharge-integrated-module-3-7v-4) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-05-16*