{"indrexa_id":"f15ae1b1-84fa-5e55-bfe7-9a261e379aeb","category_id":"power_banks","product_title":"charmast 20000mAh Portable Charger with Built in Cables, 22.5W Travel Power Bank Fast Charging, USB C Cell Phone Battery Pack for iPhone 17/16/15/14/13/12 Series, iPad, Samsung, Android, Tablet","brand":"charmast","upc":null,"asin":"B0D6RDTBP6","semantic_description":"The Charmast 20000mAh power bank offers 22.5W fast charging across 6 output ports and features built-in USB-C and Micro-USB cables, eliminating the need to carry separate cords. At 77Wh, it falls under the FAA 100Wh carry-on limit, making it suitable for air travel, and its slim 6.3 × 2.85 × 0.72 in profile fits easily in a backpack or bag. The digital percentage display provides precise battery readings, and it can deliver 3–4 full smartphone charges; however, some users note the unit is noticeably heavier than smaller 10,000mAh alternatives.","best_for_summary":"Best for travelers and multi-device users who want a high-capacity, airline-approved power bank with built-in cables and fast charging in a relatively slim form factor.","not_ideal_for":["Users prioritizing ultra-light carry who find the weight a concern","Those needing wireless or MagSafe charging","Laptop users requiring higher wattage output"],"use_case_tags":["travel","camping","everyday-carry","emergency","iphone"],"buyer_profile_tags":["traveler","outdoor-enthusiast","casual-user"],"manufacturer_description":"Stay Powered Anywhere: This 20K portable charger delivers 3-4 full phone charges - ideal for camping, flights, or emergencies. Fits easily in backpacks to keep devices alive through weekend trips, festivals, or work travel3-in-1 Built-in Cables: No more hunting for cables! This power bank has USB-C and Micro-USB cables built in, compatible with iPhone and most devices — just plug in and charge. No cord clutter, no hassleWide Compatibility: Compatible with iPhone, Samsung Galaxy, Pixel, iPad, AirPods, Kindle and most tablets. No more carrying multiple chargers — one power bank covers your entire tech lineup22.5W Fast Charging: Get up to a 50% charge in about 30 minutes with 22.5W fast charging. Ideal for quick power-ups before meetings, commutes or when you're rushing out the doorExact Battery % — No More Guessing: Unlike basic 4-light indicators, the digital display shows precise remaining power from 0–100%, just like your phone. No more unexpected shutdownsCharge 6 Devices at Once: 6 output ports power your phone, tablet, earbuds and smartwatch simultaneously — no more choosing which device to charge first. Ideal for multi-device usersDouble the Power, Minimal Extra Weight: 20,000mAh capacity (2× a standard 10K charger) in a slim 6.3 × 2.85 × 0.72 in design. Slightly heavier than 10K models but holds twice the energy — fits anywhere a paperback book would","feature_bullets":["Stay Powered Anywhere: This 20K portable charger delivers 3-4 full phone charges - ideal for camping, flights, or emergencies. Fits easily in backpacks to keep devices alive through weekend trips, festivals, or work travel","3-in-1 Built-in Cables: No more hunting for cables! This power bank has USB-C and Micro-USB cables built in, compatible with iPhone and most devices — just plug in and charge. No cord clutter, no hassle","Wide Compatibility: Compatible with iPhone, Samsung Galaxy, Pixel, iPad, AirPods, Kindle and most tablets. No more carrying multiple chargers — one power bank covers your entire tech lineup","22.5W Fast Charging: Get up to a 50% charge in about 30 minutes with 22.5W fast charging. Ideal for quick power-ups before meetings, commutes or when you're rushing out the door","Exact Battery % — No More Guessing: Unlike basic 4-light indicators, the digital display shows precise remaining power from 0–100%, just like your phone. No more unexpected shutdowns","Charge 6 Devices at Once: 6 output ports power your phone, tablet, earbuds and smartwatch simultaneously — no more choosing which device to charge first. Ideal for multi-device users","Double the Power, Minimal Extra Weight: 20,000mAh capacity (2× a standard 10K charger) in a slim 6.3 × 2.85 × 0.72 in design. Slightly heavier than 10K models but holds twice the energy — fits anywhere a paperback book would","Flight-Friendly Portable Power: At 77Wh, well under the 100Wh airline carry-on limit. Always pack in your carry-on bag only — not permitted in checked luggage. A reliable power companion for flights and travel","Dual Voltage 100V–240V: The built-in cables support worldwide voltage — no converter needed. Ideal for travel across the US, Europe, Asia and beyond.","Complete Package: 1 x power bank, 1 x use manual, 1 x travel pouch. Backed by 36-month support and technical assistance"],"spec_table":[{"field":"Connector Type","value":"For iPhone, USB-C, USB-A, Micro"},{"field":"Brand","value":"charmast"},{"field":"Battery Capacity","value":"20000 Milliamp Hours"},{"field":"Color","value":"Lunar Grey"},{"field":"Special Feature","value":"Auto Shut-Off, Built In Cable, Digital Display, Fast Charging, High Capacity"}],"bought_in_past_month":"3K+","variants":["B0D6RDTBP6","B0D6RHCNK8","B0D6RGX7JN","B0D6RH5KGB"],"shipping_amount":"FREE","manufacturer":"Dong guan Utopia-Originality Technology Co., Ltd","climate_pledge_friendly":true,"category_specs":{"has_magsafe":false,"capacity_mah":20000,"has_led_display":true,"has_solar_panel":false,"is_slim_profile":false,"number_of_ports":6,"max_output_watts":22.5,"has_fast_charging":true,"has_built_in_cable":true,"is_airline_approved":true,"has_wireless_charging":false,"has_pass_through_charging":false},"review_intelligence":{"total_reviews":1193,"average_rating":4.7,"rating_distribution":{"1_star":"3%","2_star":"1%","3_star":"3%","4_star":"8%","5_star":"85%"},"top_positive_themes":["Charging speed (125)","Quality (90)","Reliability (76)","Portability (60)","Battery life (42)","Charging capability (34)","Built-in cords (33)"],"top_negative_themes":["Weight (33)"],"top_mixed_themes":[],"review_summary":"Customers praise the power bank's quick charging speed, with one mentioning it can fully charge three phones quickly. The product receives positive feedback for its quality, reliability, and portability, particularly for travel use. They appreciate its long battery life, multiple charging options for different devices, and built-in cables. While customers find the power bank convenient to carry, they note it is a bit heavy.","reliability_score":"high"},"best_offer":{"retailer":"amazon","retailer_id":"B0D6RDTBP6","price_usd":39.99,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/charmast-20000mah-f15ae1b1/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-07-18T08:45:55.660074+00:00"},"all_offers":[{"retailer":"amazon","retailer_id":"B0D6RDTBP6","price_usd":39.99,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/charmast-20000mah-f15ae1b1/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-07-18T08:45:55.660074+00:00"}],"_llm_hints":{"best_offer_logic":"lowest price among in-stock offers","out_of_stock_offers_included":true,"use_affiliate_url":"always use affiliate_url field, never construct retailer URLs manually","shipping_note":"shipping costs are estimates only — final cost depends on user location and membership status","null_fields":"null spec or review fields mean data was unavailable from source — do not infer values","manufacturer_description":"brand's own product description — official copy from Amazon listing","feature_bullets":"array of manufacturer's bullet-point features from Amazon listing","spec_table":"raw structured spec table from Amazon — category-specific technical specs","bought_in_past_month":"Amazon demand signal — number of units sold in past 30 days","variants":"array of ASINs for color/size variants of this product","shipping_amount":"shipping cost signal — FREE indicates free shipping available","climate_pledge_friendly":"Amazon Climate Pledge Friendly badge — sustainability certification","data_freshness":"checked_at timestamp from most recent price record","best_offer_null_means":"all known offers are currently out of stock — check all_offers for availability"},"json_ld":{"@context":"https://schema.org","@type":"Product","name":"charmast 20000mAh Portable Charger with Built in Cables, 22.5W Travel Power Bank Fast Charging, USB C Cell Phone Battery Pack for iPhone 17/16/15/14/13/12 Series, iPad, Samsung, Android, Tablet","brand":{"@type":"Brand","name":"charmast"},"description":"The Charmast 20000mAh power bank offers 22.5W fast charging across 6 output ports and features built-in USB-C and Micro-USB cables, eliminating the need to carry separate cords. At 77Wh, it falls under the FAA 100Wh carry-on limit, making it suitable for air travel, and its slim 6.3 × 2.85 × 0.72 in profile fits easily in a backpack or bag. The digital percentage display provides precise battery readings, and it can deliver 3–4 full smartphone charges; however, some users note the unit is noticeably heavier than smaller 10,000mAh alternatives.","sku":"f15ae1b1-84fa-5e55-bfe7-9a261e379aeb","identifier":[{"@type":"PropertyValue","name":"asin","value":"B0D6RDTBP6"},{"@type":"PropertyValue","name":"indrexa_id","value":"f15ae1b1-84fa-5e55-bfe7-9a261e379aeb"}],"offers":[{"@type":"Offer","url":"https://www.indrexa.com/go/charmast-20000mah-f15ae1b1/amazon","priceCurrency":"USD","price":39.99,"availability":"https://schema.org/InStock","seller":{"@type":"Organization","name":"Amazon"}}],"additionalProperty":[],"aggregateRating":{"@type":"AggregateRating","ratingValue":4.7,"reviewCount":1193}}}