Most smartphone batteries and powerbanks use lithium-ion technology to generate power, but this chemical reaction can sometimes cause gas formation inside the battery, causing it to swell or even burst. So, how do you stop your battery from swelling? This particular model looks like a large AA battery with a curved mid-section. The ports are found at one end of the battery -- a micro-USB port for charging the battery itself and a regular USB port for charging any other device from the battery. The aMagic battery has a maximum charge capacity of 2600mAh which is pretty decent for its size and weight. Built as a premium Copilot+ PC, it combines powerful performance, enterprise-grade security, advanced AI capabilities, and impressive portability into a single package. Enterprise-Grade Security Through ExpertGuardian Security remains one of the most important considerations for businesses and professionals handling sensitive information. To address this, ASUS equips the ExpertBook Ultra with ExpertGuardian, a comprehensive security platform that combines both hardware and software-level protections. Read more in our articles including "Watch: Why Does Your Smartphone/Powerbank's Battery Bloat?" and "aMagic Pocket Rechargeable Battery".
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Jun 12, 2026Most smartphone batteries and powerbanks use lithium-ion technology to generate power, but this chemical reaction can sometimes cause gas formation inside the battery, causing it to swell or even burst. So, how do you stop your battery from swelling?
This particular model looks like a large AA battery with a curved mid-section. The ports are found at one end of the battery -- a micro-USB port for charging the battery itself and a regular USB port for charging any other device from the battery. The aMagic battery has a maximum charge capacity of 2600mAh which is pretty decent for its size and weight.
Our coverage of battery security includes: "Watch: Why Does Your Smartphone/Powerbank's Battery Bloat?"; "aMagic Pocket Rechargeable Battery"; "ASUS ExpertBook Ultra - 5 Best Features That Make This a Serious Executive Productivity Machine". Each article provides unique insights and information.