Thanks to its high capacity the Romoss Pulse 30 30000mAh Power Bank allows for multiple charging of certain devices, its high-quality lithium polymer batteries are safer and more durable for charging. It comes with dual-USB output ports which supports simultaneous charging of two devices at once making it versatile. Equipped with Fit charge technology, it is compatible with many devices such as mainstream mobile phones, tablets and other devices and its simple appearance and superior feel conforms to its ergonomic design, making it easier to hold. It features intelligent ten-fold safety protection design which includes overcharge, overcurrent, reset, overdischarge, temperature, power-surge, anti-reverse, short-circuit and RFI protection.
And avoiding accidentally blue-ticking a WhatsApp message will be as archaic as fax machines are now.
But until such time we have to make do with cellphones that run apps in the background and autoplay every video you come across.
So until such time we'll keep selling things that let you keep your battery above the dreaded red zone.