--- product_id: 67116966 title: "S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8\" Black）" brand: "casessary" price: "FREE" currency: VND in_stock: false category: "Wireless" url: https://www.desertcart.vn/products/67116966-s9-battery-case-w-qc-3-0-casessary-protective-charger store_origin: VN region: Vietnam --- # S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8" Black） **Brand:** casessary **Price:** FREE **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8" Black） by casessary - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/67116966-s9-battery-case-w-qc-3-0-casessary-protective-charger) ## Best For - casessary enthusiasts ## Why This Product - Trusted casessary brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Color:Black 1 The CASESSARY Galaxy S9 battery case provides you QC 3.0 fast charging and full protection. Made with ergonomic anti-slip and durable design to protect against drops, bumps, scrapes, scratches and hard falls.  Features:  1. Build-in high-capacity lithium-polymer battery, double the standby time for your Galaxy S9. 2. Premium material to protect your phone, charging and protecting 2 in 1. 3. USB OTG data support, enjoy fast data transfer without removing the battery case. 4. Integrated safety features with temperature control, effectively avoid short circuit or overcharge even under extreme conditions. Note:  ★ Please use original charger or compatible QC 2.0/3.0 charger to ensure quick recharging speed. ★ Do not place battery case to fire / excessively hot environment. ★ The surface of this battery case may gradually become warm when charging. If there’s any problem when using our devices, please kindly contact us with the contact info enclosed on the service card, we are always here to help. Specifications:  Compatibility: Only for Samsung Galaxy S9 5.8 inch ( Not compatible with Galaxy S9 Plus ) Battery Capacity: 4500mAh Battery Type: Li-polymer Input: DC 9V-1.67A, 15W Output: DC 9V-1.4A, 12.6W Material: PC+ABS Package Contents:  1x 4500mAh Galaxy S9 Battery Case 1x User Manual ## Features - ★【STAY CHARGED ANYWHERE】: World’s 1st and ONLY battery case compatible with Qualcomm Quick charge 3.0, with a long last 4500mAh Li-Polymer battery (>800 Life Cycle). Built into perfection with all features you need. - ★【FULL 360° PROTECTION】: Designed with perfectly raised bezel, ergonomic anti-slip pattern, cushioned frame and rugged outer-shell. Provides superior protection against drops, hard falls and scratches. Plus premium patterned surface with anti-slip and fingerprint proof features. - ★【PRIORITY PASS-THROUGH CHARGING + OTG DATA TRANSFER】: Your phone will receive full-charge 1st and then begin to automatically re-charge the case in less than 2 hours. Plug-and-Play technology allows easy data-synchronization without having to remove the case. - ★【DYNAMIC POWER MANAGEMENT】: Protect phone's battery life by optimize the charging speed when battery is empty or close to full. Sophisticated protective logic+ temperature sensor, prevents your device from over-heating / over-charging. 4 LED lights indicate an accurate power level. - ★【LIFETIME WARRANTY】: Money Back Guarantee and Extended 2 Years Warranty. Upgrade to Lifetime Warranty by following @CASESSARY on Facebook, Twitter and Instagram. Note: please turn off and restart for fast charging if you saw a slow charging notice. ## Images ![S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8" Black） - Image 1](https://m.media-amazon.com/images/I/5176kQCTPHL.jpg) ![S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8" Black） - Image 2](https://m.media-amazon.com/images/I/51w-7y70+hL.jpg) ![S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8" Black） - Image 3](https://m.media-amazon.com/images/I/510fVPTIyvL.jpg) ![S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8" Black） - Image 4](https://m.media-amazon.com/images/I/51WNAR0jVYL.jpg) ![S9 Battery case w. QC 3.0, CASESSARY Protective Charger w. Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Charge Compatible w. Samsung Galaxy S9（5.8" Black） - Image 5](https://m.media-amazon.com/images/I/51h5hkx-QRL.jpg) --- ## 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.vn/products/67116966-s9-battery-case-w-qc-3-0-casessary-protective-charger](https://www.desertcart.vn/products/67116966-s9-battery-case-w-qc-3-0-casessary-protective-charger) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-21*