Promate Power Bank, Universal 10000mAh Ultra-Slim Portable Charger with 20W USB-C Input/Output Port, QC 3.0 Output, USB-C Ports, Over-Heating Protection for Smartphones and Tablets - Blue / BOLT-10PD.BLUE / BOLT-10PD.BLUE

The Promate BOLT-10PD is a universal 10000mAh portable charger in blue with a 20W USB-C input and output port, Quick Charge 3.0 output and over-heating protection. It is specified for smartphones and tablets, and the ultra-slim body is what keeps it in a pocket rather than in a bag on its own.

The USB-C port supplies 20W, which is the tier current phones use for their quickest charging. At that rate a short stop moves a phone meaningfully rather than adding a token few percent, and that is what makes a 10000mAh pack useful during a day rather than only overnight.

A QC 3.0 output sits alongside the USB-C port for devices that negotiate over Quick Charge rather than USB Power Delivery. Supporting both standards is what makes the BOLT-10PD universal in practice, because which protocol a phone uses is decided by its chipset, not by which cable you happen to own.

The 20W USB-C port takes input as well as output, so the BOLT-10PD refills through the connector it charges from. One bidirectional port means one cable covers both jobs, which is the arrangement that keeps a travel kit down to a charger, a lead and the pack itself.

Over-heating protection monitors the pack while it is charging and discharging. Heat is the failure mode that matters most on any lithium battery, and protection circuitry is the component you never notice working, which is exactly why it is worth confirming before buying a portable charger.

Promate builds the BOLT-10PD as an ultra-slim charger, which is what makes the difference between a pack you take with you and a pack that stays on the desk. A slim profile slides into a jacket pocket, a laptop sleeve or the front pouch of a backpack without adding bulk.

Capacity is 10000mAh, the size that suits a charger carried every day rather than one reserved for long trips. It covers a full day of navigation, calls and photos on a phone, which is the pattern most people actually need power for, without the weight of a larger pack.

The BOLT-10PD is specified for smartphones and tablets, so it is not limited to a single device class or ecosystem. That matters for anyone carrying a phone and a tablet, where the two run different batteries and rarely need charging at the same moment during a day out.

This model carries a blue finish, which makes it easier to pick out of a bag than another black pack. Promate describes the charger as universal, with USB-C and Quick Charge outputs between them covering the mix of devices most households and offices already run.