--- product_id: 535106967 title: "DC 3.7V 800mAh 603040 Rechargeable Lithium-ion Battery for Marshall MID Major II Major III Major IV Bluetooth Headphones VDL603040 SR603040" brand: "hxjnldc" price: "B/.102" currency: PAB in_stock: true category: "Hxjnldc" url: https://www.desertcart.com.pa/products/535106967-dc-3-7v-800mah-603040-rechargeable-lithium-ion-battery-marshall store_origin: PA region: Panama --- # 3.7V nominal voltage with 4.2V max charge 800mAh high-capacity power Built-in overcharge & short circuit protection DC 3.7V 800mAh 603040 Rechargeable Lithium-ion Battery for Marshall MID Major II Major III Major IV Bluetooth Headphones VDL603040 SR603040 **Brand:** hxjnldc **Price:** B/.102 **Availability:** ✅ In Stock ## Summary > 🔋 Power your vibe, never miss a beat! ## Quick Answers - **What is this?** DC 3.7V 800mAh 603040 Rechargeable Lithium-ion Battery for Marshall MID Major II Major III Major IV Bluetooth Headphones VDL603040 SR603040 by hxjnldc - **How much does it cost?** B/.102 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/535106967-dc-3-7v-800mah-603040-rechargeable-lithium-ion-battery-marshall) ## 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 - • **Safety First, Always:** Integrated Japanese Seiko IC protects against overcharge, overcurrent, and short circuits. - • **Compact & Lightweight:** Slim 41×30×6mm size and just 13.7g weight fit perfectly without bulk. - • **Plug & Play Flexibility:** 3-wire design with heat-shrinkable sleeves allows easy DIY replacement or custom wiring. - • **Power Your Sound All Day:** 800mAh capacity ensures extended playback for your Marshall headphones. - • **Precision Voltage for Peak Performance:** 3.7V nominal voltage with a safe 4.2V max charge keeps your device running smoothly. ## Overview This 3.7V 800mAh rechargeable lithium-ion battery is tailor-made for Marshall MID Major II, III, and IV Bluetooth headphones, delivering reliable, long-lasting power with advanced safety features. Its compact design and flexible 3-wire setup make it ideal for seamless replacement or DIY projects, ensuring your audio experience stays uninterrupted and protected. ## Description Shop DC 3.7V 800mAh 603040 Rechargeable Lithium-ion Battery for Marshall MID Major II Major III Major IV Bluetooth Headphones VDL603040 SR603040. Free delivery and returns on eligible orders. ## Features - Compatible with Marshall MID Major II Major III Major IV Bluetooth Headphones Battery Replacement VDL603040 SR603040。Also suitable for DIY electronic products with 3.7-5V and less than 2.96Wh 800mAh built-in 3-wire battery replacement.（★ Not applicable to high-power electric tools and model aircraft） - Please note that the specifications and polarity of the connector are based on the product display image,★the red wire is the positive "+" and the black wire is the negative "-"，White wire is thermistor "NTC"，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. - 603040 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 800mAh, power 2.96Wh, ★size 41×30×6mm(1.594×1.181×0.236inch）(L*W*T), Weight:13.7g(0.487oz)，Maximum current:0.8A。 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, ★3 wire 3302-26 high temperature resistant silicone cable 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 | B0C3HHVQ9R | | Amperage | 1 Amps | | Antenna Location | Camera, Watch | | Battery Capacity | 800 milliamp_hours | | Battery Cell Type | Lithium Polymer | | Battery Weight | 13 Grams | | Best Sellers Rank | 80,155 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,509 in Rechargeable Household Batteries | | Brand Name | HXJNLDC | | Compatible Phone Models | Headphones | | Country of Origin | China | | Customer Reviews | 4.2 4.2 out of 5 stars (105) | | Item Dimensions | 41 x 30 x 6 millimetres | | Item Weight | 13 Grams | | Manufacturer | HXJN | | Model Number | 603040 | | Number of Batteries | 1 Lithium Polymer batteries required. (included) | | Product Warranty | 1 | | Reusability | Rechargeable | | UPC | 754525114697 | | Unit Count | 1.0 count | | Voltage | 3.7 Volts (DC) | ## Product Details - **Battery capacity:** 800 milliamp_hours - **Battery cell composition:** Lithium Polymer - **Brand:** HXJNLDC - **Number of batteries:** 1 Lithium Polymer batteries required. (included) - **Recommended uses for product:** Camera, Watch ## Images ![DC 3.7V 800mAh 603040 Rechargeable Lithium-ion Battery for Marshall MID Major II Major III Major IV Bluetooth Headphones VDL603040 SR603040 - Image 1](https://m.media-amazon.com/images/I/61lC1T1tTgL.jpg) ## Frequently Bought Together - HXJNLDC DC 3.7V 800mAh 603040 Rechargeable Lithium-ion Battery for Marshall MID Major II Major III Major IV Bluetooth Headphones VDL603040 SR603040 - Marshall Major V On-Ear Bluetooth Headphone, Black - Major IV Ear Pads Cushions Replacement Compatible with Marshall Major 4 Major IV Headphones Ear Cushions£¬Ear Muffs Memory Foam Earpads --- ## 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.com.pa/products/535106967-dc-3-7v-800mah-603040-rechargeable-lithium-ion-battery-marshall](https://www.desertcart.com.pa/products/535106967-dc-3-7v-800mah-603040-rechargeable-lithium-ion-battery-marshall) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-10-14*