{"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":"2026-09-17T12:27:56+00:00","price":"259.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0F8P21LG9?maas=maas_adg_api_583055011478542661_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB2261e8a0b184c1fff68bfd79166f4696&aa_adgroupid=cf3c8e2031dde3adcba4a2c33eea2d05_PBSEP_!!!affid!!!_118045_&aa_creativeid=64b5PSk1RuoKMG5rLbxlTHK7960NqRO94e14xJtumxxSbnE_c"}],"product":{"brand":"AFERIY-UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/aferiy-800w-portable-power-station-512wh-lifepo4-battery-1h-fast-charge-220v-240v-ac-output-ups-function-3500-cycles-solar-generator-for-campin-b0f8p21lg9/prices","gtin":null,"id":8420,"model_number":null,"name":"AFERIY 800W Portable Power Station, 512Wh LiFePO4 Battery, 1H Fast Charge, 220V-240V AC Output, UPS Function, 3500+ Cycles, Solar Generator for Campin","product_url":"https://mail.mainbuyer.com/product/aferiy-800w-portable-power-station-512wh-lifepo4-battery-1h-fast-charge-220v-240v-ac-output-ups-function-3500-cycles-solar-generator-for-campin-b0f8p21lg9","urn":"MB-AWIN-GB-B0F8P21LG9"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"259.00","historical_low":"259.00","last_observed_at":"2026-09-17T12:27:56+00:00","low_30d":"259.00","low_90d":"259.00","median_price":"259.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:56+00:00"}}