Shopify Power Bank & Portable Charger Schema — mAh Capacity, Wh Airline Compliance, USB-C PD Wattage, Fast Charge Protocols, Qi2 Wireless Structured Data

Why Power Banks Are Structurally Invisible to AI Shopping Agents

The single most searched power bank query that AI agents systematically fail is some variant of "carry-on safe power bank" or "airline-approved power bank." The answer depends entirely on the Wh (watt-hour) energy content — ≤100Wh is unrestricted carry-on, 100.1–160Wh requires airline approval, above 160Wh is prohibited in the cabin. Yet the vast majority of Shopify power bank listings only state the mAh capacity at 5V output, which is not the same as Wh. A "26800mAh" power bank at 3.7V cell voltage contains 26800 × 3.7 ÷ 1000 = 99.2Wh — just under the airline threshold. Without the Wh encoded as a named property, AI agents cannot answer "is this power bank under 100Wh?" even though the answer is a simple calculation from the cell voltage.

USB-C Power Delivery wattage determines whether a power bank can meaningfully charge a laptop. A 20W USB-C PD bank will charge a MacBook Air while it's off (barely), but the laptop will discharge faster than it charges during active use. A 65W USB-C PD bank can maintain charge on most ultrabooks during normal use. A 100W bank is required for gaming laptops and MacBook Pro 16-inch at full rate. These are completely different product capabilities, but "USB-C fast charging" in a product title doesn't encode which scenario is supported. AI agents matching "power bank for MacBook Pro" need the USB-C PD wattage as a numeric property to evaluate whether the bank can actually charge the laptop while it's running.

Simultaneous output de-rating is the power bank specification most frequently misrepresented or omitted. A 100W USB-C port that drops to 45W when a second port is active may be a deal-breaker for a buyer who needs to charge a laptop (requiring 65W) and a phone simultaneously. But product listings typically state only the maximum per-port wattage — not how the wattage is shared when multiple devices are connected. AI agents cannot answer "does this bank charge my laptop at full speed while also charging my phone?" without the simultaneous output behavior explicitly encoded.

Fast charge protocol compatibility is a binary match question. A phone with Qualcomm QC 4.0 will not fast charge from a PD-only charger — they'll charge at 5W standard USB rate. A Samsung Galaxy with 45W Super Fast Charging 2.0 requires PPS (Programmable Power Supply) to achieve its rated speed. Apple iPhone requires USB-C PD 9V/2A (18W) minimum for fast charging on Lightning, or PD 30W for USB-C. These are non-interchangeable protocols that must be listed explicitly in structured data as individual named values, not buried in a spec sheet paragraph.

Airline Battery Size Rules — FAA/IATA

USB-C Charging Protocol Compatibility Matrix

Complete Power Bank Schema — 65W USB-C PD Qi2 Wireless Bank

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "ChargePro 20000 GaN 65W PD Qi2 MagSafe-Compatible Wireless Power Bank",
  "description": "20000mAh Li-Polymer power bank. 74Wh (airline carry-on compliant, ≤100Wh). USB-C1: 65W PD 3.0 output (45W with dual port active). USB-C2: 20W PD output. USB-A: 18W QC 3.0. Qi2 wireless pad: 15W (MagSafe-compatible magnetic alignment). PPS support: 5–20V/3A. Pass-through charging. Digital percentage display. Weight: 442g (15.6oz). Dimensions: 146 × 71 × 25mm.",
  "sku": "CP-20K-GAN65-QI2",
  "brand": { "@type": "Brand", "name": "ChargePro" },
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "Capacity (mAh)",
      "value": "20000",
      "unitCode": "C97",
      "description": "Rated cell capacity: 20000mAh at 3.7V nominal Li-Polymer cell voltage. Note: mAh is a measure of charge (not energy) at the cell voltage. Actual device-charging capacity at 5V USB output (accounting for ~90% conversion efficiency): approximately 13000–14000mAh equivalent at 5V output. Full charges of a 5000mAh phone battery (e.g., Samsung Galaxy S24+): approximately 2.8 full charges. Full charges of an iPhone 15 Pro Max (4422mAh): approximately 3.1 full charges. Full charges of iPad Pro 12.9-inch M4 (10758mAh): approximately 1.1 full charges."
    },
    {
      "@type": "PropertyValue",
      "name": "Energy Content (Wh)",
      "value": "74",
      "unitCode": "WTH",
      "description": "Rated energy content: 74Wh (= 20000mAh × 3.7V ÷ 1000). Airline carry-on compliance: 74Wh is ≤100Wh — unrestricted carry-on allowed per IATA regulations and FAA (14 CFR 175.10). Wh value is printed on the battery label as required by IATA for lithium ion batteries. Checked baggage: this device (in common with all lithium batteries regardless of capacity) is prohibited in checked baggage. If airline security asks for documentation: point to the Wh label on the device body. The device does not require pre-approval for carry-on — it is categorically allowed at ≤100Wh."
    },
    {
      "@type": "PropertyValue",
      "name": "Cell Chemistry",
      "value": "Li-Polymer (Li-Po)",
      "description": "Lithium Polymer (Li-Po) cells. Li-Po vs Li-Ion: Li-Po cells use a gel electrolyte vs Li-Ion liquid electrolyte, allowing thinner form factors and slight weight reduction. Both use similar cathode chemistry (NMC in this unit). Li-Po energy density: 150–180 Wh/kg — comparable to standard Li-Ion. This unit: 74Wh ÷ 0.442kg = 167 Wh/kg. Li-Po is not inherently safer or less safe than Li-Ion at the cell level — both require similar fire protection (PCM/BMS circuit). Operating temperature: charge 0–45°C; discharge -10–60°C."
    },
    {
      "@type": "PropertyValue",
      "name": "USB-C Port 1 Max Output (Single Device)",
      "value": "65",
      "unitCode": "WTT",
      "description": "USB-C Port 1 (primary): 65W USB Power Delivery 3.0 when this is the only active output port. Supported PDO (Power Data Objects): 5V/3A (15W), 9V/3A (27W), 15V/3A (45W), 20V/3.25A (65W). Compatible devices at 65W: MacBook Air 13 M3 (standard adapter is 30W; 65W provides faster charging); MacBook Air 15 M3 (charges at 65W); iPad Pro 11-inch M4 (20W standard; 65W charges at full speed); Samsung Galaxy S24 Ultra (45W rated, charges at 45W from 65W port); Dell XPS 13 (65W rated — matches). Not suitable as primary charger for: MacBook Pro 16-inch M3 Max (requires 96–140W for balanced charge during heavy use; this bank will charge it slowly during use but adequate when powered off)."
    },
    {
      "@type": "PropertyValue",
      "name": "Simultaneous Output — Multi-Port De-Rating",
      "value": "Max 65W total when multiple ports active",
      "description": "When multiple ports are active simultaneously, total output is limited to 65W shared across all active ports. Power distribution table: C1 alone = 65W; C2 alone = 20W; USB-A alone = 18W (QC 3.0); C1 + C2 = 45W + 20W (C1 drops to 45W when C2 is active); C1 + USB-A = 45W + 18W; C2 + USB-A = 20W + 5W; Qi2 wireless alone = 15W; Qi2 + C1 = 15W + 45W (5W reduction on C1 when wireless is active); All three wired + Qi2 = 30W + 18W + 5W + 15W (C1 drops significantly). Travel use case: MacBook Air + iPhone + AirPods simultaneously → C1 at 45W (laptop charges slowly during use), C2 or USB-A at 5–18W (phone fast charges), Qi2 for earbuds (if Qi2 compatible case). All three devices charge simultaneously but laptop receives reduced power."
    },
    {
      "@type": "PropertyValue",
      "name": "Fast Charge Protocols",
      "value": "USB-C PD 3.0 (65W), PPS (5–20V/3A), QC 3.0 (18W), Apple Fast Charge (18W), Samsung AFC",
      "description": "Wired fast charge protocols by port: USB-C Port 1 and Port 2: USB-C Power Delivery 3.0 (up to 65W on C1, 20W on C2), PPS (Programmable Power Supply: 3.3–20V variable, up to 3A — enables Samsung 45W Super Fast Charging 2.0 and OnePlus 50W SUPERVOOC at rated speed). USB-A Port: Qualcomm Quick Charge 3.0 (18W, 3.6–12V), Samsung Adaptive Fast Charging (AFC, 9V/1.67A = 15W), Apple Fast Charge (5V/2.4A). Standard fallback: all ports support 5V/2A (10W) for non-fast-charging devices. A device that does not support any of these protocols will charge at standard USB 5V speed (regardless of port rating — fast charge protocols require the device to negotiate the higher power level)."
    },
    {
      "@type": "PropertyValue",
      "name": "Wireless Charging",
      "value": "Qi2 15W, Qi EPP 10W, Qi baseline 7.5W/5W",
      "description": "Qi2-certified wireless charging pad (top surface, magnetic ring alignment): 15W for iPhone 12 and later with MagSafe-compatible magnetic alignment; 15W for Android phones with Qi2 receiver (Pixel 8 Pro+, Samsung Galaxy S24 series with Qi2 firmware update); 10W Qi EPP for Samsung Galaxy S series without Qi2 (S22, S23); 7.5W for iPhone via standard Qi (non-aligned, slower); 5W baseline Qi for older phones and earbuds cases. Qi2 certification: WPC (Wireless Power Consortium) certified, license number QI2-2025-xxxx. This unit is NOT Apple MFi-certified but achieves 15W wireless charging on iPhone through the Qi2 standard — same speed as Apple MagSafe."
    },
    {
      "@type": "PropertyValue",
      "name": "Pass-Through Charging",
      "value": "true",
      "description": "Pass-through charging supported: the power bank can accept charging input (via USB-C Port 1 input: up to 65W PD) while simultaneously outputting power to connected devices. When pass-through is active, the bank's internal cells are being charged at the same time as the output devices. Efficiency in pass-through mode: approximately 82–88% (slightly lower than direct input or output alone due to simultaneous conversion). For overnight hotel charging: plug power bank into wall adapter via C1, and connect devices to C2 and USB-A — all charge simultaneously. Note: during high-load pass-through (65W in, 65W out total), the unit generates heat — do not cover with blankets or soft surfaces."
    },
    {
      "@type": "PropertyValue",
      "name": "Display Type",
      "value": "Digital percentage display (OLED, 3-digit)",
      "description": "OLED digital percentage display: shows remaining charge as a numeric percentage (0–100%) in 1% increments. Updates every 30 seconds during active discharge. Contrast with LED indicator models (1–4 LEDs showing approximate charge in 25% increments). Digital percentage display is significantly more useful for knowing remaining charge precisely: '18%' vs '1 of 4 LEDs' when nearly depleted. Display activates by pressing the power button (single press); turns off after 30 seconds of inactivity to conserve charge. Also displays charging input/output wattage when ports are active (press button twice)."
    },
    {
      "@type": "PropertyValue",
      "name": "Weight",
      "value": "442",
      "unitCode": "GRM",
      "description": "Weight: 442g (15.6 oz). Context for travel: a standard 1L water bottle is approximately 500g when full; this power bank is slightly lighter. Comparable power banks at 20000mAh: typical Li-Ion cylinder cell bank = 480–550g; this GaN Li-Po design = 442g (saving ~70–100g vs standard). Laptop charger weight for comparison: Apple 67W USB-C adapter = 146g; this bank replaces the charger and adds battery backup at only 296g additional weight."
    }
  ],
  "offers": {
    "@type": "Offer",
    "price": "129.99",
    "priceCurrency": "USD",
    "availability": "https://schema.org/InStock"
  }
}
</script>

Metafield Reference Table — Power Banks & Portable Chargers

Five Common Power Bank Schema Mistakes

• mAh without Wh for airline compliance. The most frequent high-value search failure in this category. AI agents cannot answer "under 100Wh power bank" or "airline approved battery" without the Wh value encoded. Always encode Wh as a separate named property and include a boolean airline_compliant: true/false based on the ≤100Wh threshold.
• Peak wattage without simultaneous de-rating. A 65W USB-C port that drops to 30W when three devices are connected is not a 65W charger in multi-device use. Encode simultaneous output behavior with a table or description of how wattage is shared — this is the spec most relevant to the buyer's actual travel scenario.
• "Fast charging" without protocol specification. QC 3.0, PD, PPS, and Apple Fast Charge are not interchangeable. A Samsung Galaxy S24 Ultra needs PPS for 45W speed — it will fast charge at 18W from a QC 3.0 charger and at 27W from PD without PPS. Each supported protocol must be listed explicitly.
• Qi vs Qi2 conflated as "wireless charging." Qi wireless charges iPhone at 7.5W. Qi2 charges iPhone at 15W — the same speed as MagSafe. This is a 2× speed difference on the device most likely to be used with the power bank. Encode Qi2 certification status explicitly, including the wattage achievable on iPhone.
• Missing laptop compatibility statement. The fastest-growing power bank search is "power bank that charges laptop." This requires USB-C PD ≥45W (ultrabooks) or ≥65W (most laptops) or ≥96W (MacBook Pro 16-inch at full rate). Encode a laptop_compatible boolean and specify which laptop categories (ultrabooks vs full-power laptops) the bank can support.

Related guides

• Shopify Electronics & Hardware Schema — general electronics structured data
• Shopify Audio Headphones & Speakers Schema — wireless codec, battery, ANC
• Shopify Digital Products AI Visibility — structured data for non-physical products
• Shopify Metafields for AI Agents — namespace strategy and type reference