--- product_id: 487539007 title: "DC 3.7V 5000mAh 755590 li-ion Lithium Ion Polymer Battery Replacement for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply" brand: "hxjnldc" price: "5555 kr" currency: ISK in_stock: true reviews_count: 11 category: "Hxjnldc" url: https://www.desertcart.is/products/487539007-dc-3-7v-5000mah-755590-li-ion-lithium-ion-polymer store_origin: IS region: Iceland --- # 5A max current output 5000mAh high capacity Built-in multi-protection IC DC 3.7V 5000mAh 755590 li-ion Lithium Ion Polymer Battery Replacement for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply **Brand:** hxjnldc **Price:** 5555 kr **Availability:** ✅ In Stock ## Summary > 🔋 Power your passion with confidence and style! ## Quick Answers - **What is this?** DC 3.7V 5000mAh 755590 li-ion Lithium Ion Polymer Battery Replacement for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply by hxjnldc - **How much does it cost?** 5555 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/487539007-dc-3-7v-5000mah-755590-li-ion-lithium-ion-polymer) ## Best For - hxjnldc enthusiasts ## Why This Product - Trusted hxjnldc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Sound:** Advanced Japanese Seiko IC safeguards against overcharge, overdischarge, and short circuits. - • **Slim Yet Mighty:** Compact 91×55×7.5mm size and lightweight 76g design fits seamlessly into your custom builds. - • **Reliable Backup Power:** Ideal for 3.7-5V DIY electronics, from Raspberry Pi setups to mobile energy storage solutions. - • **Plug & Play Flexibility:** Universal 2-wire JST connector with easy DIY soldering and heat-shrink sleeve for perfect polarity match. - • **Power Through Your Projects:** Robust 5000mAh capacity keeps your devices running longer without compromise. ## Overview This 3.7V 5000mAh lithium polymer battery offers a high-capacity, compact power solution for DIY electronics operating under 18.5Wh. Featuring a built-in Japanese Seiko IC for overcharge and short circuit protection, a universal 2-wire JST connector, and durable silicone cables, it ensures safe, reliable energy storage. Perfect for Raspberry Pi projects and mobile power needs, it combines performance with easy customization and a 1-year warranty for peace of mind. ## Description Product description DC 3.7V Model Table of Square Rechargeable Polymer Lithium Battery (applicable to 3.7V-5V electronic products) Please note that connector specifications and polarity are based on the product display image., the red wire is the positive "+" and the black wire is the negative "-"The yellow ( white) lead is a 'thermistor'，Do not reverse-charge or reverse-connectreverse. 3 -wi r e batteries retain red and black wires, which can replace 2 -wi r e batteries. Some products' original batteries may lack plugs, have incompatible plugs, or exhibit mismatched polarity. No worries—you can simply cut the wires and use the included heat-shrink tubing to connect the wires of the same color from the old plug. Review: The battery arived as promised. - This battery was a replacement for a solar charging unit that I use i a car. The old one 'expired' and grew fatter. Time will tell how well the new one will take and hold charge. Review: Battery works as intended for Raspberry Pi - Works for a Raspberry Pi 5 great. Last a few hours running multiple websites and constant running. Would recommend. ## Features - This battery is applicable to electronic products with DIY 3.7-5V less than 18.5Wh 5000mAh.（★ Not applicable to high-power electric tools and model aircraft） - Please compare the connector specifications and polarity according to the display diagram before purchasing,★the red wire is the positive "+" and the black wire is the negative "-"，Do not reverse-charge or reverse-connectreverse. ★The primary battery of some products has no plug or mismatched plug or mismatched polarity. It doesn't matter, you can cut and solder the plug directly or use our heat shrinkable insulating sleeve to connect the same color wire. - 755590 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 5000mAh, power 18.5Wh, ★size 91×55×7.5mm(3.583×2.165×0.295inch）(L*W*T), Weight:76g(2.681oz)，Maximum current:5A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit. - It‘s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-22 high temperature resistant silicone cable, and genuine JST Pitch 2.54mm ★2 wire connector module. - If there are any quality issues within a year,★ please feel free to contact us via email for replacement. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BG85CMFL | | Amperage | 5 Amps | | Antenna Location | Radio | | Battery Capacity | 5000 Milliamp Hours | | Battery Cell Composition | Lithium Polymer | | Battery Cell Type | Lithium Polymer | | Battery Weight | 76 Grams | | Best Sellers Rank | #364,853 in Health & Household ( See Top 100 in Health & Household ) #902 in 3.7V Batteries | | Brand | HXJNLDC | | Customer Reviews | 4.2 out of 5 stars 87 Reviews | | Item Dimensions | 3.58 x 2.17 x 0.3 inches | | Item Weight | 81 Grams | | Manufacturer | HXJN | | Model Name | 755590 rechargeable lithium ion polymer battery | | Model Number | 755590 | | Number of Batteries | 1 Lithium Polymer batteries required. (included) | | Recommended Uses For Product | Radio | | Reusability | Rechargeable | | UPC | 754525114611 | | Unit Count | 1.0 Count | | Voltage | 3.7 Volts (DC) | | Warranty Description | 1 | ## Product Details - **Battery Capacity:** 5000 Milliamp Hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** HXJNLDC - **Number of Batteries:** 1 Lithium Polymer batteries required. (included) - **Recommended Uses For Product:** Radio ## Images ![DC 3.7V 5000mAh 755590 li-ion Lithium Ion Polymer Battery Replacement for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply - Image 1](https://m.media-amazon.com/images/I/61GdGJ1zQjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ The battery arived as promised. *by W***K on January 22, 2024* This battery was a replacement for a solar charging unit that I use i a car. The old one 'expired' and grew fatter. Time will tell how well the new one will take and hold charge. ### ⭐⭐⭐⭐⭐ Battery works as intended for Raspberry Pi *by M***R on August 24, 2024* Works for a Raspberry Pi 5 great. Last a few hours running multiple websites and constant running. Would recommend. ### ⭐⭐⭐⭐ Specs exactly as described, don't forget safety though *by K***W on June 22, 2025* Bought these to power 700 LEDs in a pair of pants. Lasts about 35 minutes running a light show (which is what we calculated so that's fine). Main thing to be mindful of is that this has no type of covering at all, so we had an issue where we didn't build an enclosure for it and it got scratched and started smoking, so we had to safely dispose of it. Safety first! Make sure you have a suitable enclosure! ## Frequently Bought Together - HXJNLDC DC 3.7V 5000mAh 755590 li-ion Lithium Ion Polymer Battery Replacement for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply - Teyleten Robot ATGM336H GPS+BDS Dual-Mode Module Flight Control Satellite Positioning Navigator Replacement NEO-M8N NEO-6M for Arduino 2pcs - LILYGO T-Deck ESP32-S3 Meshtastic 915MHz LoRa BLE WiFi TTGO Module LoRaWAN Long Range Development Board with 2.8 inch LCD Display --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/487539007-dc-3-7v-5000mah-755590-li-ion-lithium-ion-polymer](https://www.desertcart.is/products/487539007-dc-3-7v-5000mah-755590-li-ion-lithium-ion-polymer) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-07-20*