Advertising Disclosure

Charmast 18W USB C Portable Charger Review

Author image
By Best Choice team
Checked icon Last updated - July 6, 2025
9.3

Verdict overview

  • For traveling 9.3
  • Long life 9.4
  • Battery Duration 9.4
  • Charging power 9.4
  • Light weight 9.3
Pros
  • PD port charges devices quickly
  • USB C port is versatile
  • High capacity
Cons
  • Randomly turns off.

Tech specs

product dimensions3.6 x 6.3 x 0.6 inches
batteries2 Lithium Polymer batteries required. included
item weight14.5 ounces
customer reviews4.5 4.5 out of 5 stars 1,187 ratings 4.5 out of 5 stars

Product Overview

I recently had the opportunity to try out the Charmast 18W USB C Portable Charger and I must say that it is a great product. This charger has 18W of power and multiple ports for charging, making it perfect for traveling or for use at home. The battery capacity is 26800 Milliamp Hours which is enough to charge my phone several times over. It also works with Blackberry, Google Pixel, iPad Mini iPad Air and iPad Pro, iPod, other tablet, LG, Motorola, Sony Xperia Z5, XZ Premium, XZs, HTC, ZTE AXON, Huawei P20/P10 Plus, P9, mater, Honor, Nova devices as well as iPhone 11/11 pro/11 pro max/ iPhone XR / XS Max / X / 8 / 8 plus / 7/ 7 Plus / 6 / 6s Plus etc., Samsung Galaxy S9, S9 Plus, S8, S8 Plus and more.

The USB Type C port has Power Delivery protocol which provides 9 12V high voltage output which is compatible with MacBook/ new Type C iPad Pro/ new 13 MacBook Air with Retina display. The Quick Charge 3.0 port charges compatible devices up to 80 in 35 minutes providing 5V 9V 12V voltage intelligently adjustable charging for different QC 3.0 devices which is four times faster than conventional charging. This portable charger also has two standard USB ports and a Micro USB port allowing you to charge multiple devices simultaneously.

The design of this portable charger is great its slim and compact with only 14mm thickness and the fully rubber oil surface cover provides a smooth feel while protecting your device from scratches or drops. Its also very lightweight so its easy to carry around in your bag or pocket without feeling weighed down. Safety wise this product is UL 2056 certified and all Intelligent Safeguards protect your devices against excessive current flow overheating and overcharging so its safe to use.

I think this product is great for anyone who needs to charge their device on the go or someone who needs multiple ports for charging multiple devices simultaneously. Its also great for people who need fast charging the Quick Charge 3.0 port charges compatible devices up to 80 in just 35 minutes! I would definitely recommend this product if youre looking for a portable charger that can do it all fast charging capability, multiple ports and an impressive battery capacity of 26800 Milliamp Hours!

Where to buy:

Having trouble choosing between portable power banks?

Compare the best portable power banks and choose the one that works for you

Compare portable power banks
Faq icon

Frequently asked questions

  • What type of devices can I charge with this portable charger?Arrow icon
  • How fast can this charger charge my devices?Arrow icon
  • How many devices can I charge simultaneously?Arrow icon
  • How long does it take to fully charge the charger itself?Arrow icon
  • Is this charger safe to use?Arrow icon

The secret behind our reviews

By Best Choice team

Best Choice Team is your go-to source for curated product recommendations across various categories. Leveraging years of industry experience and advanced AI technology, we analyze data from multiple sources to bring you the most relevant and up-to-date product lists.

Our AI-driven approach allows us to streamline the selection process, ensuring that the products we feature align with current market trends and consumer preferences. We aim to provide content that helps you navigate your purchasing decisions with greater ease Like.

Users reviews

93% of reviewers would recommend to a friend, Based on 2,374 Reviews

Show highlight comments

Leave a reply

You can help us improve our product reviews by providing us with your feedback. Please share your thoughts in the section below.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.