--- product_id: 44656907 title: "iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black" brand: "seekpow" price: "£30.02" currency: GBP in_stock: true category: "Wireless Phone Accessory" url: https://www.desertcart.co.uk/products/44656907-iphone-6-plus-6s-plus-battery-case-seekpow-ultra-slim store_origin: GB region: United Kingdom --- # iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black **Brand:** seekpow **Price:** £30.02 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black by seekpow - **How much does it cost?** £30.02 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/44656907-iphone-6-plus-6s-plus-battery-case-seekpow-ultra-slim) ## Best For - seekpow enthusiasts ## Why This Product - Trusted seekpow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Ultra Slim Battery Case The compact charging case for iPhone 6 / 6s，Rubber oil surface treatment, give you the best hand feeling. +130% Extra Battery Life Add up to 60 hours audio, 12+ hours talk time, 12 hours video, 12 hours internet or 3 hours 3D gaming. Whatever you love doing, do it for longer. Easy To Use No excessive bulk, just feel free to use your headphone without audio jack extender. Lightning cable input, then you can charge your battery case and iPhone 6/6s simultaneously with your existing iPhone lightning cable. Built-in Magnetic Pad With built-in magnetic pad, it can be applied directly to car mount holder and desk stand. The thin board design doesn't block signal, making the NFC function fast to support Apple Pay. Fast Charge Technology 1.5A output for iPhone and 2A input deliver a much faster charging speed than regular power bank with 1A port, To ensure fast charging at the same time, will not damage your iPhone and Case. Discharging Press on-off buttom 3 seconds to charge/stop, 1 second to show the remaining power. Specification: Capacity: 4000mAh Input: 5V/2A Out put: 5V/1.5A Weight: 127g Size:163x84x13.5mm Connector: LightSync (compatible Apple's lightning cable) Box Content: 1 x iPhone 6S Plus/6 Plus Battery Case / 1 x User Manual Note: Not compatible with iPhone 6/6s iPhone 7/7Plus.  This case is not designed to provide screen protection. ## Features - <b>130% Longer Battery Life: </b> Authentic 4000mAh capacity provides an extra 60 hours audio, 12+ hours talk time, 12 hours video, 12 hours web browsing or 3 hours 3D gaming to your iPhone 6 Plus / 6s Plus. - <b>Ultra-Slim & Ultra-light: </b> Weighing as much as a normal silicone Case. This rechargeable case is the perfect fit for your iPhone 6 Plus / 6s Plus (only 13.5mm and 127g),Under the same capacity range, this product has a very compact and lightweight. - <b>Easy To Use: </b> No Excessive bulk, Just feel free to use your headphone without audio jack extender.Lightning cable input,then you can charge your battery case and iPhone 6/6s simultaneously with your existing iPhone lightning cable. - <b>Fast Charge Technology:</b>1.5A output for iPhone and 2A input deliver a much faster charging speed than regular power bank with 1A port, To ensure fast charging at the same time, will not damage your iPhone and Case. - <b>What You Get: </b> Seekpow Ultra Slim Battery Case for iPhone 6 / 6s, , welcome guide, our worry-free 18-month warranty and friendly customer service. ## Images ![iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black - Image 1](https://images-na.ssl-images-amazon.com/images/I/41NRsFQzLeL.jpg) ![iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black - Image 2](https://images-na.ssl-images-amazon.com/images/I/51Uj9eVr7LL.jpg) ![iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black - Image 3](https://images-na.ssl-images-amazon.com/images/I/51N3xGk-hwL.jpg) ![iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black - Image 4](https://images-na.ssl-images-amazon.com/images/I/51cgh9IcViL.jpg) ![iPhone 6 Plus / 6S Plus Battery Case, Seekpow Ultra Slim Extended Battery Case for iPhone 6 Plus / 6s Plus (5.5 inch) 4000mAh Extended Battery Pack Power Cases -Black - Image 5](https://images-na.ssl-images-amazon.com/images/I/41sqetiraVL.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.co.uk/products/44656907-iphone-6-plus-6s-plus-battery-case-seekpow-ultra-slim](https://www.desertcart.co.uk/products/44656907-iphone-6-plus-6s-plus-battery-case-seekpow-ultra-slim) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-04*