{"product_id":"iphone-14-pro-max-13-pro-max-battery-case-8500mah","title":"iPhone 14 Pro Max \u0026 13 Pro Max Battery Case – 8500mAh","description":"\u003ch3\u003eOne Slim Battery Case That Powers Four Big iPhones\u003c\/h3\u003e\n\u003cp\u003eIf you carry an iPhone 14 Pro Max, 14 Plus, 13 Pro Max, or 12 Pro Max, you own one of the best 6.7-inch displays Apple ever made — and a battery that modern apps treat like an all-you-can-eat buffet. This 8500mAh-rated battery charging case is the fix: a slim 0.58-inch, 3.8-ounce power shell that roughly doubles your phone's runtime, props itself up with a built-in folding kickstand, and charges your iPhone at up to 15W. One case, four compatible flagship models, zero dead-phone anxiety. It fits the 6.7-inch body shared by these four phones precisely — buttons, port, and camera cutouts all line up.\u003c\/p\u003e\n\u003ch3\u003e10 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8500mAh Rated Capacity\u003c\/strong\u003e — the maker specifies a true, tested 8000mAh usable battery: enough to roughly double the runtime of a 6.7-inch iPhone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15W Faster Charging\u003c\/strong\u003e — quicker top-ups than typical 5W battery cases; one owner measured 15% to 80% in about 20 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Folding Kickstand\u003c\/strong\u003e — flip out the stand for movies, FaceTime, and recipes; it is a battery, a case, and a stand in one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Model Fit\u003c\/strong\u003e — works with iPhone 14 Pro Max, 14 Plus, 13 Pro Max, and 12 Pro Max (all 6.7 inch).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim and Light\u003c\/strong\u003e — only 0.58 in (about 14.7 mm) thick and 3.8 oz (about 108 g); pocketable, not a brick.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePass-Through Charging\u003c\/strong\u003e — one cable charges your iPhone first, then refills the case automatically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEncrypted Connector Chip\u003c\/strong\u003e — original-spec encryption chip means no nag pop-ups; the connector is rated for 8,000 insertion cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Layer Safety Protection\u003c\/strong\u003e — smart chip guards against short-circuit, overheating, overcharging, and more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 LED Power Gauge\u003c\/strong\u003e — check the reserve at a glance in 25% steps (0–25–50–75–100%).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit\u003c\/strong\u003e — tempered glass screen protector, charging cable, and user manual included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaterials \u0026amp; Specifications\u003c\/h3\u003e\n\u003cp\u003eThe shell combines a flexible thermoplastic polyurethane (TPU) frame with a hard-shell back plate and raised bezels for 360° coverage. Rated capacity is 8500mAh on the listing title, with the manufacturer describing a \"true 8000mAh\" tested capacity — roughly 30Wh either way, far under the 100Wh airline carry-on limit. Output supports up to 15W charging to the phone; pass-through charging fills the phone first, then the case. Thickness is 0.58 in \/ ~14.7 mm and weight is 3.8 oz \/ ~108 g (manufacturer figures). Wired headphones and Bluetooth audio work while charging. Wireless charging is NOT advertised for this model — plan on cable or kickstand-down desk charging. See more charging gear in the \u003ca href=\"https:\/\/gorillacasestore.com\/collections\/power-packs\"\u003ePower Packs collection\u003c\/a\u003e or browse all \u003ca href=\"https:\/\/gorillacasestore.com\/collections\/iphone-14-pro-max-cases\"\u003eiPhone 14 Pro Max cases\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003e5 Real-World Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Long-Haul Commuter\u003c\/strong\u003e — train Wi-Fi, podcasts, and email burn 40% before 9 a.m.; the case quietly puts it back during the ride.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Binge-Watcher in Transit\u003c\/strong\u003e — the folding kickstand turns any tray table into a theater while 8000 real mAh keeps the show running.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Older-Phone Loyalist\u003c\/strong\u003e — a 12 Pro Max or 13 Pro Max with a tired battery gets a second life for a fraction of a battery replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Job-Site Foreman\u003c\/strong\u003e — calls, photos, and plan PDFs from 6 a.m. to dark, with raised bezels and a hard back absorbing the daily knocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Weekend Camper\u003c\/strong\u003e — about 30Wh of reserve runs maps, camera, and flashlight all weekend, no outlet required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits at a Glance\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eBenefit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8500mAh rated (true 8000mAh) battery\u003c\/td\u003e\n\u003ctd\u003eRoughly doubles a 6.7-inch iPhone's runtime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15W charging output\u003c\/td\u003e\n\u003ctd\u003eRefills fast — about 15% to 80% in ~20 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFolding kickstand\u003c\/td\u003e\n\u003ctd\u003eHands-free video calls and movies anywhere\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits 14 Pro Max \/ 14 Plus \/ 13 Pro Max \/ 12 Pro Max\u003c\/td\u003e\n\u003ctd\u003eOne case covers four flagship models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.58 in thick, 3.8 oz\u003c\/td\u003e\n\u003ctd\u003eSlimmer and lighter than most battery cases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePass-through charging\u003c\/td\u003e\n\u003ctd\u003eOne cable charges phone first, then case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncrypted connector chip\u003c\/td\u003e\n\u003ctd\u003eNo accessory pop-ups, 8,000-cycle durability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10-layer safety chip\u003c\/td\u003e\n\u003ctd\u003eProtection from overheat, overcharge, shorts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 LED indicators\u003c\/td\u003e\n\u003ctd\u003eReserve level visible at a glance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded tempered glass + cable\u003c\/td\u003e\n\u003ctd\u003eEverything you need in one box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cp\u003e1. Power the case off and remove any existing case from your iPhone. 2. Slide the bottom of the phone into the case's connector cradle until it seats fully. 3. Flex the top edge of the case over the phone's top corners until flush. 4. Press the rear power button once to start charging — the 4 LEDs show progress. 5. Press again to stop and save the reserve. 6. Flip out the rear kickstand whenever you want hands-free viewing. 7. Recharge phone and case together overnight with a single cable — the phone fills first.\u003c\/p\u003e\n\u003ch3\u003eTroubleshooting\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCase charges itself but not the phone:\u003c\/strong\u003e reseat the phone so the connector is fully inserted, then hold the power button for 3 seconds; remove pocket lint from the phone's port first.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAccessory pop-up appears:\u003c\/strong\u003e momentary pop-ups can occur after iOS updates — detach and reseat the phone; the encrypted chip normally prevents them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKickstand feels stiff:\u003c\/strong\u003e that is intentional spring tension for stability; work it open and closed a few times and it loosens slightly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCharging seems slow:\u003c\/strong\u003e confirm you are using the included cable; third-party charge-only cables can limit current below the 15W capability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase gets warm during pass-through:\u003c\/strong\u003e warmth is normal while phone and case charge in sequence; keep it off soft bedding and out of direct sun while plugged in.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. Which iPhones does this fit?\u003c\/strong\u003e The 6.7-inch iPhone 14 Pro Max, iPhone 14 Plus, iPhone 13 Pro Max, and iPhone 12 Pro Max only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Which iPhones does it NOT fit?\u003c\/strong\u003e It does NOT fit the iPhone 14, 14 Pro, 13, 13 Pro, 13 Mini, 12, 12 Pro, or 12 Mini — those bodies are smaller and the connector will not align.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. How many full charges will I get?\u003c\/strong\u003e With a true 8000mAh (~30Wh) reserve, expect roughly 1.2–1.4 full charges for a 14 Pro Max (4,323mAh battery) after conversion losses — the maker rates it as doubling your phone power. Treat exact counts as estimates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Is the capacity 8500mAh or 8000mAh?\u003c\/strong\u003e The listing title rates it 8500mAh; the manufacturer's own spec sheet calls it a \"true 8000mAh\" tested capacity. We quote both for honesty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. How fast does it charge the phone?\u003c\/strong\u003e Up to 15W — owners report going from 15% to 80% in around 20 minutes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Does it support wireless or MagSafe charging?\u003c\/strong\u003e No — wireless charging is not advertised for this model. Charge by cable, or remove the case for a 15W MagSafe pad.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7. Can I take it on a plane?\u003c\/strong\u003e Yes — about 30Wh, well under the 100Wh FAA carry-on limit. Cabin baggage only, never checked.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e8. Can I charge phone and case at the same time?\u003c\/strong\u003e Yes — pass-through charging fills your iPhone first, then the case, from one cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e9. How thick and heavy is it?\u003c\/strong\u003e 0.58 in (~14.7 mm) thick and 3.8 oz (~108 g) — among the slimmest in its capacity class.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10. How do I check remaining power?\u003c\/strong\u003e Four LED indicators show 0–25%–50%–75%–100% of the case's reserve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e11. Is it safe?\u003c\/strong\u003e A 10-protection smart chip guards against short-circuiting, overheating, and overcharging, and the connector is tested to 8,000 insertions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e12. What's in the box?\u003c\/strong\u003e The 8500mAh-rated battery case, a tempered glass screen protector, a charging cable, and a user manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e13. What is the return policy?\u003c\/strong\u003e To start a return, you can contact us at gorillacasestore@gmail.com. If your return is accepted, we'll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e14. How fast is shipping?\u003c\/strong\u003e Free shipping across the USA, typically arriving in under a week.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e15. Any discount available?\u003c\/strong\u003e Yes — code 10OFF takes 10% off your entire order at checkout.\u003c\/p\u003e\n\u003ch3\u003eWhat Owners Are Saying\u003c\/h3\u003e\n\u003cp\u003e★★★★★ \u003cstrong\u003eTomás V., tour guide, Lisbon\u003c\/strong\u003e — \"My 13 Pro Max is three years old and was dying by lunch. With this case it outlasts my eight-hour walking tours, and the kickstand is perfect for lunch-break football streams.\"\u003c\/p\u003e\n\u003cp\u003e★★★★★ \u003cstrong\u003eHannah B., paramedic, Manchester\u003c\/strong\u003e — \"12-hour shifts, constant radio apps, zero charging chances. It refilled my 14 Pro Max from 15% to 80% in about 20 minutes between calls.\"\u003c\/p\u003e\n\u003cp\u003e★★★★★ \u003cstrong\u003eKenji M., commuter, Yokohama\u003c\/strong\u003e — \"Slimmer than I expected — 14.7mm total is thinner than my old wallet case. It still fits my jacket pocket with the kickstand flat.\"\u003c\/p\u003e\n\u003cp\u003e★★★★★ \u003cstrong\u003eGabriela F., real estate agent, São Paulo\u003c\/strong\u003e — \"I show 10 properties a day on my 14 Plus. The LED gauge tells me exactly what's left, and the included screen protector saved me a separate purchase.\"\u003c\/p\u003e\n\u003cp\u003e★★★★½ \u003cstrong\u003eOwen D., site engineer, Dublin\u003c\/strong\u003e — \"Brilliant value. Half a star off only because there's no wireless charging — but at this price, with 15W wired and a stand, I'm not complaining.\"\u003c\/p\u003e\n\u003ch3\u003eKeep Reading: Gorilla Cases Guides\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/gorillacasestore.com\/blogs\/news\/best-iphone-12-pro-max-magnetic-matte-case-2026-magsafe-review\"\u003eBest iPhone 12 Pro Max Magnetic Matte Case 2026: MagSafe Review\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/gorillacasestore.com\/blogs\/news\/iphone-15-pro-max-case-battle-leather-wallet-vs-waterproof-vs-metal-kickstand-2026\"\u003eiPhone 15 Pro Max Case Battle: Leather Wallet vs Waterproof vs Metal Kickstand 2026\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGive your big-screen iPhone the all-day battery it deserves. Order today with code \u003cstrong\u003e10OFF\u003c\/strong\u003e for 10% off, enjoy free USA shipping with delivery in under a week, and join the Gorilla Family — we keep you charged and protected.\u003c\/p\u003e","brand":"Gorilla Cases","offers":[{"title":"Black","offer_id":48433052156148,"sku":"1BCC-14PM-BLK","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0569\/5750\/1616\/files\/712Cs86HE2L._AC_SL1500.jpg?v=1780821117","url":"https:\/\/gorillacasestore.com\/en-de\/products\/iphone-14-pro-max-13-pro-max-battery-case-8500mah","provider":"Gorilla Cases","version":"1.0","type":"link"}