A fully charged cellphone battery contains 20,000 joules of stored energy. If the phone uses 2 W of power, how long will the battery last (in seconds, minutes, and hours)? - Quora
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NOMA 6-Outlet Extender Wall Tap with Surge Protector, 540 Joules, 2 USB Ports, Black | Canadian Tire
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Joules Universal Power Bank 5,000mAh Portable Charger by VQ with Dual Power Outputs for Apple, Samsung, Sony, Huawei and more – Winter Camellia Border: Amazon.co.uk: Electronics & Photo
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Amazon.com: Small Portable Charger for iPhone 5200mAh, Compact 20W PD Fast Charging Power Bank, LCD Display Cute Battery Pack Portable Phone Charger Compatible with iPhone 14 Pro Max/14/13/12/11/XR/X/8/7/6 Plus : Cell Phones
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JVA MB16 160km Wi-Fi Monitored Mains Or Battery Powered Electric Fence Energizer- Powerful 16 Joule » Big Red Fencing
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Austere V Series Power 4-Outlet/3-USB Wall Tap 3,000 Joules Surge Protector Black and Blue 5S-PS4-US1 - Best Buy
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GE 4-Outlet 560 Joules 1800-Watt Indoor USB & AC Surge Protector in the Surge Protectors department at Lowes.com
![Joules Universal Power Bank 5,000mAh Portable Charger by VQ with Dual Power Outputs for Apple, Samsung, Sony, Huawei and more – Winter Camellia Border: Amazon.co.uk: Electronics & Photo Joules Universal Power Bank 5,000mAh Portable Charger by VQ with Dual Power Outputs for Apple, Samsung, Sony, Huawei and more – Winter Camellia Border: Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/I/812dV+cDRJL._AC_UF1000,1000_QL80_.jpg)