“I have jackery 290 my Question is can I use my marshall Bluetooth speaker just in case run out the battery thanks!”
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Dear customer, thank you for your interest in Jackery products. The Explorer 290, with a battery capacity of 290Wh and an output power of 200W, is capable of powering a marshall Bluetooth speaker. To estimate the runtime, we use a straightforward calculation: multiply the battery capacity by 0.85 and then divide by the device's power consumption. The Marshall Stanmore II Bluetooth Speaker can deliver outputs up to 80W of total power using its 5.25" woofer and two 0.75" tweeters. The Explorer 290 could theoretically power the marshall Bluetooth speaker for approximately 3 hours (calculated as 290×0.85÷80). Please consider this an approximate figure, as actual runtime is influenced by the exact power requirements and series of your marshall Bluetooth speaker, additional connected devices, and more. It's crucial to ensure that the total power draw from all devices connected does not surpass the Explorer 290's 200W output limit to prevent system overload. For a precise calculation or further assistance, our customer service team is at your disposal (Customer Service: hello@jackery.com / +1-888-502-2236 Weekdays 9AM to 5PM PST). Warm regards, Jackery Support Team
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