--- 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: "NT$1402" currency: TWD in_stock: true reviews_count: 11 category: "Hxjnldc" url: https://www.desertcart.tw/products/487539007-dc-3-7v-5000mah-755590-li-ion-lithium-ion-polymer store_origin: TW region: Taiwan --- # 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:** NT$1402 **Availability:** ✅ In Stock ## Summary > 🔋 Power your passion with precision and protection! ## 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?** NT$1402 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/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 - • **Compact Yet Mighty:** Slim 91×55×7.5mm profile fits seamlessly into your custom builds without bulk. - • **Safe & Smart Energy:** Integrated Japanese Seiko IC safeguards against overcharge, overdischarge, and short circuits. - • **Power Through Your Projects:** Robust 5000mAh capacity fuels your DIY electronics with lasting energy. - • **Reliable & Ready to Replace:** Backed by a 1-year warranty to keep your devices powered worry-free. - • **Universal DIY Compatibility:** Flexible 2-wire JST connector with easy soldering options for seamless integration. ## Overview This HXJNLDC 755590 lithium-ion polymer battery delivers a high-capacity 5000mAh at 3.7V with a compact form factor ideal for DIY 3.7-5V electronic projects under 18.5Wh. Featuring a built-in Japanese Seiko IC for overcharge, overdischarge, overcurrent, and short circuit protection, it ensures safe, reliable power delivery up to 5A. The battery includes a 2-wire JST connector and heat-shrink sleeve for easy installation and is backed by a 1-year warranty, making it a trusted replacement for mobile energy storage needs. ## Description desertcart.com: 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 : Health & Household 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: Specs exactly as described, don't forget safety though - 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! ## 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 A | | Antenna Location | Radio | | Battery Capacity | 5000 milliamp_hours | | Battery Cell Composition | Lithium Polymer | | Battery Cell Type | Lithium Polymer | | Battery Weight | 76 g | | Best Sellers Rank | #258,231 in Health & Household ( See Top 100 in Health & Household ) #317 in 3.7V Batteries | | Brand | HXJNLDC | | Customer Reviews | 4.2 out of 5 stars 98 Reviews | | Item Dimensions | 3.58 x 2.17 x 0.3 inches | | Item Weight | 81 g | | Manufacturer | HXJN | | Model Name | 755590 | | Model Number | 755590 | | Number of Batteries | 1 Lithium Polymer batteries required. (included) | | Recommended Uses For Product | Radio | | Reusability | Rechargeable | | UPC | 754525114611 | | Unit Count | 1 Count | | Voltage | 3.7 volts_of_direct_current | | 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. ### ⭐⭐⭐⭐ 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! ### ⭐⭐⭐⭐⭐ 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. ## 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.tw/products/487539007-dc-3-7v-5000mah-755590-li-ion-lithium-ion-polymer](https://www.desertcart.tw/products/487539007-dc-3-7v-5000mah-755590-li-ion-lithium-ion-polymer) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-10-09*