--- product_id: 166346719 title: "CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue)" brand: "casefirst" price: "250.65 DT" currency: TND in_stock: false category: "Electronics" url: https://www.desertcart.tn/products/166346719-casefirst-xiaomi-mi-9-battery-case-5000mah-rechargeable-portable-extended store_origin: TN region: Tunisia --- # CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue) **Brand:** casefirst **Price:** 250.65 DT **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue) by casefirst - **How much does it cost?** 250.65 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/166346719-casefirst-xiaomi-mi-9-battery-case-5000mah-rechargeable-portable-extended) ## Best For - casefirst enthusiasts ## Why This Product - Trusted casefirst brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Please Kindly Note:*. Please fully charging and discharging at least 1 times at the first use. *. Please use the original charger that comes with the phone to charge the battery case. Generic or non-original chargers may cause the battery case to malfunction. *. Long press the power button 3 seconds untill led lights on to power on and start charging. To stop charging,just long press power button 3 seconds again till the led light off. PRODUCT DESCRIPTION Product Type: A+ grade lithium ion polymer batteryInput Current: 5V 1800mAOutput Current: 5V 1800mAOperating Temperature: 0 ℃ -45 ℃Battery capacity:Storage / Transport Temperature: -20 ℃ ± 50 ℃Cycle Life: ≥ 500 timesCharging time for battery case: about 4-6 hoursCharging time for Xiaomi Mi 9: about 3-4 hoursProduct Weight: 120g (4.05oz)Product Size: 18 * 8 * 2(cm)How to charge the phone:1. Take off the top cover of the battery case and slide your mobile phone into it. Make sure your mobile phone is well connected to the dock on the battery case.2. Press the ON/OFF switch at least 3 seconds to activated or stop the charging, see the mobile phone scree to identify the charging signal.How to charge the battery case:1.Connect your USB charging cable(Not Included)to the battery case's USB input interface, and then connect the cable to a USB charger adapter.2.Press the power button once to charge the phone and battery case simultaneously.phone will be charged first,after phone full charged,it will charge battery case. The lighting LED indicators show the battery percent as follows: Red: 1%~ 25%; Blue: 25% ~ 50%; Green:50%~75%; White: 75%~100%.What's in the Box :1 * Battery Case for Xiaomi Mi 91 * User manual ## Features - [Grade A+ Battery Case] This Xiaomi Mi 9 rechargeable charging case uses Grade A+ rated battery cells with the highest industry regulatory certificates: CE, RoHS, and FCC. Each charger case forXiaomi Mi 9 designed to last over 500 repeated battery charge cycles, Which was under Six Months Warranty! - [Heavy Duty Protection] 360Β° scratch-guard protection minimizes bulk and weight for Xiaomi Mi 9 charger case. Raised front bumper stands higher than your Galaxy screen to avoid contact with other surfaces. This portable Xiaomi Mi 9 charger case protects the phone from scratches and other daily wear and tear. - [SIX MONTHS IRONCLAD WARRANTY] Ensures you are protected for the life of this Xiaomi Mi 9 battery case and 30-DAY MONEY-BACK GUARANTEE offers peace of mind, enabling you to return the product in case you don’t like your purchase for any reason. - [High Capacity and Fast Charge] Built-in rechargeable Li-polymer juice pack, Effectively provide 140%+ extra battery life to Xiaomi Mi 9 smartphone. 2.0 A output make Xiaomi Mi 9 fully charged in about 2-4 hours, make your life more convenient - [Double Charge Technology and Easy to Operate] 100% safty with internal circuit protection against overheating, overload and short circuit. The LED indicators let you know exactly how much charge is available and the power switch turns on / off the cover. Double charge technology make it possible to charge Xiaomi Mi 9 and Xiaomi Mi 9 extended battery at the same time, No need to remove the Xiaomi Mi 9 power bank ## Images ![CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue) - Image 1](https://images-na.ssl-images-amazon.com/images/I/41vIO0qHriL.jpg) ![CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue) - Image 2](https://images-na.ssl-images-amazon.com/images/I/51GSrRTvmxL.jpg) ![CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue) - Image 3](https://images-na.ssl-images-amazon.com/images/I/41Ql0TIEbLL.jpg) ![CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue) - Image 4](https://images-na.ssl-images-amazon.com/images/I/41BjlXKKjyL.jpg) ![CaseFirst Xiaomi Mi 9 Battery Case, 5000mAh Rechargeable Portable Extended Battery Backup Charger Case External Power Bank Juice for Xiaomi Mi 9 (Blue) - Image 5](https://images-na.ssl-images-amazon.com/images/I/41aKckssiFL.jpg) --- ## 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.tn/products/166346719-casefirst-xiaomi-mi-9-battery-case-5000mah-rechargeable-portable-extended](https://www.desertcart.tn/products/166346719-casefirst-xiaomi-mi-9-battery-case-5000mah-rechargeable-portable-extended) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-19*