{"indrexa_id":"626da985-33db-55f7-82e4-45309cf66246","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":"B0CJBQBB7F","semantic_description":"The Charmast 20000mAh power bank offers 22.5W fast charging, six output ports, and built-in USB-C and Micro-USB cables, making it well-suited for travelers, campers, and multi-device users who want to avoid carrying separate cords. At 77Wh it falls under the FAA carry-on limit, and its slim 6.3 × 2.85 × 0.72 in profile fits easily in a bag alongside other gear. Reviews are mixed on long-term battery retention and charging reliability, so buyers prioritizing durability over convenience may want to consider 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 a digital battery display for use across trips, commutes, and outdoor outings.","not_ideal_for":["Users needing wireless or MagSafe charging","Weight-sensitive minimalist travelers","Those requiring consistent long-term battery retention"],"use_case_tags":["travel","camping","everyday-carry","emergency","android"],"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":"Black"},{"field":"Special Feature","value":"Auto Shut-Off, Built In Cable, Digital Display, Fast Charging, High Capacity"}],"bought_in_past_month":"5K+","variants":["B0CJBQBB7F","B0CQJZY2L6","B0CJBQJZ5F","B0CJBRBTVV","B0CJBQWWBN","B0CQJY47DL"],"shipping_amount":"FREE","manufacturer":"Dong guan Utopia-Originality Technology Co., Ltd","climate_pledge_friendly":true,"category_specs":{"capacity_wh":74,"has_magsafe":false,"capacity_mah":20000,"has_led_display":true,"has_solar_panel":false,"is_slim_profile":true,"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":6378,"average_rating":4.5,"rating_distribution":{"1_star":"6%","2_star":"2%","3_star":"3%","4_star":"9%","5_star":"80%"},"top_positive_themes":["Quality (258)","Portability (172)","Built-in cords (155)","Charging capability (129)"],"top_negative_themes":[],"top_mixed_themes":["Charging speed (386)","Reliability (324)","Battery life (210)","Weight (110)"],"review_summary":"Customers appreciate the power bank's built-in cables and its portability, noting it can fit in a pocket for traveling and serves as a lifesaver when traveling internationally. The charging capability is positive, as it can charge multiple devices, and customers find the product's quality excellent. The battery life and reliability receive mixed feedback - while some say it holds charge for a long time and works great, others report it doesn't hold a charge and stops working. The charging speed and weight also get mixed reviews, with some finding it easy to charge and light, while others say it takes a while to charge and is heavy.","reliability_score":"mixed"},"best_offer":{"retailer":"amazon","retailer_id":"B0CJBQBB7F","price_usd":39.99,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/charmast-20000mah-626da985/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":"B0CJBQBB7F","price_usd":39.99,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/charmast-20000mah-626da985/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, six output ports, and built-in USB-C and Micro-USB cables, making it well-suited for travelers, campers, and multi-device users who want to avoid carrying separate cords. At 77Wh it falls under the FAA carry-on limit, and its slim 6.3 × 2.85 × 0.72 in profile fits easily in a bag alongside other gear. Reviews are mixed on long-term battery retention and charging reliability, so buyers prioritizing durability over convenience may want to consider alternatives.","sku":"626da985-33db-55f7-82e4-45309cf66246","identifier":[{"@type":"PropertyValue","name":"asin","value":"B0CJBQBB7F"},{"@type":"PropertyValue","name":"indrexa_id","value":"626da985-33db-55f7-82e4-45309cf66246"}],"offers":[{"@type":"Offer","url":"https://www.indrexa.com/go/charmast-20000mah-626da985/amazon","priceCurrency":"USD","price":39.99,"availability":"https://schema.org/InStock","seller":{"@type":"Organization","name":"Amazon"}}],"additionalProperty":[],"aggregateRating":{"@type":"AggregateRating","ratingValue":4.5,"reviewCount":6378}}}