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DOUBLE your Laptop Battery Life with External Power - Mophie Showcase

Linus Tech Tips@LinusTechTips866.2K viewsAug 27, 20198:22
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Promos

Thanks to mophie for sponsoring this video! Check them out at lmg.gg Buy mophie products on Amazon: lmg.gg Gaming battery life on gaming laptops is usually pretty terrible. So how can you double your laptop battery life for gaming? We take a look at one option: using a mophie USB-C powerstation battery bank. Previous video we did on improving battery life through software: youtube.com Discuss on the forum: linustechtips.com Our Affiliates, Referral Programs, and Sponsors: linustechtips.com Get Private Internet Access today at geni.us Displate metal posters: lmg.gg Linus Tech Tips merchandise at lttstore.com Linus Tech Tips posters at crowdmade.com Our Test Benches on Amazon: amazon.com Our production gear: geni.us Twitter - twitter.com Facebook - @LinusTech Instagram - @linustech Twitch - twitch.tv Intro Screen Music Credit: Title: Laszlo - Supernova Video Link: youtube.com iTunes Download Link: itunes.apple.com Artist Link: soundcloud.com Outro Screen Music Credit: Approaching Nirvana - Sugar High youtube.com

Start
AI OverviewDefault language

The video opens by framing two primary strategies to extend device battery life: reducing power consumption from the outset and adding a larger external battery to supply power when needed. The host explains that while modern processors may not easily become more power efficient, external power options offer a practical solution, especially for gaming laptops. The featured sponsor, Mophie, provides power stations that support USB Power Delivery, enabling higher wattage output and compatibility with devices like the Nintendo Switch and certain laptops. The host introduces the test setup using a Razers Blade Stealth to explore how much a USB-C power station can extend gaming time, and outlines the expectations and potential limitations, such as the laptop’s own power adapter rating and how battery performance may differ when plugged in versus running on battery alone. The discussion then shifts to battery chemistry and safety considerations, noting the FAA restrictions on battery capacity for air travel and why many devices do not have user-swappable batteries. This section establishes the context for why external power banks are both practical and constrained in real-world use, setting up the experiment framework for the rest of the video.

Topics · technology · hardware · battery-life · gaming · peripherals · sponsorship · consumer-electronics

Questions answered

What is the core idea behind extending laptop battery life with external power?
The core idea is to use a USB-C power station with USB Power Delivery to supply additional power to the laptop, enabling longer gaming sessions even when the built-in battery would otherwise drain quickly.
Why might a gaming laptop not gain battery life while gaming when using an external charger?
Because gaming GPUs require substantial power and the laptop's own power adapter and design may limit simultaneous charging and gaming, which can prevent the battery from charging while under heavy load.