{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:30:17+00:00","price":"49.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FKN5RCV7?maas=maas_adg_api_588563440394542563_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=412ff9ac3671fc721b39248631d3f6b2&aa_adgroupid=c9c764c0ad8da7f19e860f312d1f0506_PBSEP_!!!affid!!!_118045_&aa_creativeid=c14a0uSQc88mSH_b8lKjUXLr2lv4wJOQmpocw095yXUa0JDA_c"}],"product":{"brand":"UK-Anker","evidence_url":"https://www.mainbuyer.com/evidence/products/anker-nano-power-bank-45w-10-000mah-portable-charger-iphone-battery-pack-b0fkn5rcv7/prices","gtin":null,"id":12476,"model_number":null,"name":"Anker Nano Power Bank, 45W 10,000mAh Portable Charger, iPhone Battery Pack","product_url":"https://www.mainbuyer.com/product/anker-nano-power-bank-45w-10-000mah-portable-charger-iphone-battery-pack-b0fkn5rcv7","urn":"MB-AWIN-GB-B0FKN5RCV7"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"49.99","historical_low":"49.99","last_observed_at":"2026-09-17T12:30:17+00:00","low_30d":"49.99","low_90d":"49.99","median_price":"49.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:30:17+00:00"}}