--- product_id: 421498409 title: "MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin, 952540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board" brand: "makerfocus" price: "€ 65.91" currency: EUR in_stock: true reviews_count: 1 category: "Maker Focus" url: https://www.desertcart.it/products/421498409-makerfocus-4pcs-3-7v-lithium-rechargeable-battery-jst1-25-connector store_origin: IT region: Italy --- # 3A max discharge current 1000mAh high-capacity power Multi-layer protection board MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin, 952540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board **Brand:** makerfocus **Price:** € 65.91 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power your passion, protect your projects. ## Quick Answers - **What is this?** MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin, 952540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board by makerfocus - **How much does it cost?** € 65.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/421498409-makerfocus-4pcs-3-7v-lithium-rechargeable-battery-jst1-25-connector) ## 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€’ **Advanced Safety Shield:** Overcharge, over-discharge, short circuit, and overcurrent protections keep your devices safe and sound. - β€’ **Reliable 1000mAh Capacity:** Power your ESP32 projects longer with a robust 3.7V lithium polymer cell. - β€’ **Optimized Charging Current:** Supports up to 1A charging current for efficient and safe recharging cycles. - β€’ **Ready for Maker Innovation:** Compatible with ESP32 development boards, ideal for the next-gen DIY tech creators. - β€’ **Compact & Lightweight Design:** Slim 4.5 x 2.5 x 1 cm size and just 18gβ€”perfect for sleek, portable electronics. ## Overview The MakerFocus 4pcs 3.7V 1000mAh lithium polymer batteries come with integrated protection boards to prevent overcharge, over-discharge, short circuits, and overcurrent. Designed for ESP32 development boards, these compact and lightweight batteries deliver reliable power with a max discharge current of 3A and a recommended charging current of 0.2-1A, ensuring safe and efficient performance for your innovative electronics projects. ## Description 1. Charging Charging Current: the charging current shall not exceed 1A. Charging with a higher current than the recommended value may cause problems with the charging and discharging performance, mechanical performance and safety performance of the battery cell, and may lead to heat generation or leakage Charging Voltage: the charging voltage shall not exceed 4.20V. 4.20V is the maximum limit of charging voltage, if the voltage is higher than the rated voltage value, it may cause problems of charging and discharging performance, mechanical performance and safety performance of the battery cell, and may lead to heat generation or leakage Prohibition of Reverse Charging: Connect the positive and negative terminals of the battery correctly, reverse charging is strictly prohibited. If the positive and negative terminals of the battery are reversed, it will not be possible to charge the battery cells. At the same time, reverse charging will reduce the charging and discharging performance and safety of the battery cell, and will lead to heat generation and leakage 2. Discharge The battery shall be discharged at less than 1A. High discharging current may reduce the discharging capacity significantly or cause over-heat It should be noted that the cell would be at over-discharged state by its self-discharge characteristics in case the cell is not used for long time. In order to prevent over-discharging, the cell shall be charged periodically to maintain between 3.7V and 3.9V. Over-discharging may causes loss of cell performance, characteristics, or battery functions 3. Parameters Nominal Voltage: 3.7V Charge Limit Voltage: 4.2V Discharge Cut-off Voltage: 2.75V Standard Charge: 0.5C Standard Discharge: 0.5C Fast Charage: 1.0C Fast Discharage: 1.0C Charging Temperature: 0~+45℃ Discharging Temperature: -20~+60℃ 4. Note The lithium polymer battery should be stored in a cool, dry and well-ventilated place. And should be kept away from fire and high temperature Keep the storage capacity preferably at 30%-50% (at a voltage between 3.7- 3.9V) If the battery has been stored for more than six months or longer, the battery must be recharged Batteries should be stored within the above temperature and humidity ranges Package Content: 4 x 3.7V 3.7Wh 1000mAh Lithium Polymer Batteries Review: Ok - It works like a lipo battery. Amazing. ## Features - Note: The battery overcurrent protection is not a panacea, do not continue to charge and discharge the current and voltage with a large current beyond the range, otherwise the protection board will be damaged and invalid - 1000mAh: The recommended charging current is 0.2A, the maximum is not more than 1A. The discharge current is recommended 0.55A, and the maximum is not more than 3A - Over-discharge protection: When the battery is about to run out and the voltage is as low as 3.0V, the protection board will also be turned off and can no longer be discharged, forming an over-discharge protection effect - Overcharge protection: When charging the battery, when the voltage reaches the highest battery voltage (4.2V), the protection board will automatically power off and shut down, indicating that it will not continue to charge when fully charged, form an overcharge protection - Short circuit protection: When an accidental short circuit occurs, the protection board will automatically shut down within a few milliseconds and will not be powered on again. Note that the cell is short-circuited (not through the protection board). The protection board will also fail due to continuous high current, or the components are heated and damaged ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CXNQ3ZR | | Best Sellers Rank | #176,753 in Toys ( See Top 100 in Toys ) #556 in RC Batteries | | Item model number | 7PVE55471137TGQWO5E | | Manufacturer | MakerFocus | | Product Dimensions | 4.5 x 2.5 x 1 cm; 17.96 g | ## Product Details - **Battery capacity:** 1000 Milliamp Hours - **Battery cell composition:** Lithium Polymer - **Brand:** MakerFocus - **Number of batteries:** 4 Lithium Ion batteries required. (included) - **Recommended uses for product:** Power Tool ## Images ![MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin, 952540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board - Image 1](https://m.media-amazon.com/images/I/71Tylj-YGBL.jpg) ## Questions & Answers **Q: What are the dimensions of the pack?** A: Dimensions(Β±2mm): 112 * 65 *8.8mm / 4.41 * 2.56 * 0.35inch(L*W*H) **Q: is this compatible with rp2040 devices like the pico?** A: Not 100% sure. I think you can use the battery and run the Pico on a breadboard, if that is what you were thinking. The RP runs off of 3.3Volts, so it is close enough. If you want to be safe you can use a TP4056. They are cheap enough. **Q: Can this battery be safely charged with a TP4056?** A: Hi, yes, it could be charged by TP4056. **Q: Can I charge it with your charging board?** A: Hi friend, you can use it can be matched with ESP32 Development Board WIFI Kits for Arduino Nodemcu, you could see the picture 4 on the listing. ## Customer Reviews ### ⭐⭐⭐ Ok *by M***D on 21 January 2023* It works like a lipo battery. Amazing. ## Frequently Bought Together - MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin, 952540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board - 915MHz LoRa Antenna Indoor 3dBi Gain Omni SMA Male + IPEX Cable 2 Pcs - MakerFocus ESP32 LoRa V3 Development Board with 915 MHz Antenna Integrated WiFi Bluetooth SX1262 CP2102 0.96-inch OLED Display Type C for Meshtastic IoT Arduino Intelligent Scenes --- ## 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.it/products/421498409-makerfocus-4pcs-3-7v-lithium-rechargeable-battery-jst1-25-connector](https://www.desertcart.it/products/421498409-makerfocus-4pcs-3-7v-lithium-rechargeable-battery-jst1-25-connector) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-14*