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For trips where capacity and charging several devices matter more than pocketable size or the fastest possible recharge, the Charmast 26,800mAh power bank could be a capable one-battery travel option. Its large rated capacity, multiple ports and moderate weight are compelling, but the “last battery you’ll need” claim depends on the exact model, your devices and your travel conditions. Independent testing also found slower recharging than some competitors and reduced capacity in cold weather.
Charmast 26800mAh power bank: key specifications
The Charmast manual documents the W2002P and W2058P variants. CleverHiker independently tested a Charmast 26800 in 2024. Those sources report similar capacity and weight, but model references overlap without proving every listing has identical specifications. Check the SKU and its port details before buying.
| Specification | What the sources establish |
|---|---|
| Rated capacity | 26,800mAh for manual-listed W2002P/W2058P variants, according to Charmast’s manual. This is battery-cell capacity, not the amount delivered to a device. |
| Weight | 338g for W2002P/W2058P, according to Charmast’s manual; 12oz (about 340g) measured by CleverHiker in its 2024 review. |
| Dimensions | 19.71 × 9.6 × 1.42cm for W2002P/W2058P, according to Charmast’s manual. |
| Inputs and outputs | Three input paths and four outputs are documented in the manual; port availability and supported rates should be checked against the specific SKU. |
| USB-C | Bidirectional. The manual documents PD profiles and states that Type-C supports up to 18W PD output. |
| Independent recharge time | 6 hours 52 minutes in CleverHiker’s 2024 test; recharge time depends on the input, charger and conditions. |
| Independent rating | 4.2/5 from CleverHiker in 2024. |
Charmast’s manual describes USB-C as supporting 18W PD output and compatibility with MacBooks and most USB-C phones. Treat the wattage as the port’s documented maximum, not a promise that every device will charge at that rate. Device limits, cable capability and charging protocol all affect actual speed. The manual’s statement alone does not establish compatibility with every MacBook model.
How many times can it charge a phone?
The 26,800mAh figure is the bank’s rated cell capacity. Energy is lost during voltage conversion and charging, so a phone will receive less than the label suggests. The usable amount also varies with the phone’s battery size, its charging efficiency, cable and conditions. The available sources do not establish a universal number of full phone charges, so a precise count would be misleading.
#1 Best Overall
- Stay Powered Anywhere: This 20K portable charger delivers 3-4 full phone charges - ideal for camping, flights, or emergencies. Fits easily in backpacks to keep devices alive through weekend trips, festivals, or work travel
- 3-in-1 Built-in Cables: No more hunting for cables! This power bank has USB-C and Micro-USB cables built in, compatible with iPhone and most devices — just plug in and charge. No cord clutter, no hassle
- Wide Compatibility: Compatible with iPhone, Samsung Galaxy, Pixel, iPad, AirPods, Kindle and most tablets. No more carrying multiple chargers — one power bank covers your entire tech lineup
- 22.5W Fast Charging: Get up to a 50% charge in about 30 minutes with 22.5W fast charging. Ideal for quick power-ups before meetings, commutes or when you're rushing out the door
- Exact Battery % — No More Guessing: Unlike basic 4-light indicators, the digital display shows precise remaining power from 0–100%, just like your phone. No more unexpected shutdowns
For a practical estimate, compare the power bank’s usable output energy—not just its cell-capacity label—with your device’s battery capacity. If a manufacturer or independent test does not publish usable energy for the exact model, treat any charge-count estimate as approximate.
Can it charge a phone, tablet and other devices together?
The manual documents four output ports, and CleverHiker found the tested bank capable of charging multiple devices. That makes it useful when you want to top up a phone, tablet or other small electronics without carrying separate power banks. However, the port count does not establish how much power is available to all connected devices simultaneously.
Rank #2
- Stay Powered Anywhere: This 20K portable charger delivers 3-4 full phone charges - ideal for camping, flights, or emergencies. Fits easily in backpacks to keep devices alive through weekend trips, festivals, or work travel
- 3-in-1 Built-in Cables: No more hunting for cables! This power bank has USB-C and Micro-USB cables built in, compatible with iPhone and most devices — just plug in and charge. No cord clutter, no hassle
- Wide Compatibility: Compatible with iPhone, Samsung Galaxy, Pixel, iPad, AirPods, Kindle and most tablets. No more carrying multiple chargers — one power bank covers your entire tech lineup
- 22.5W Fast Charging: Get up to a 50% charge in about 30 minutes with 22.5W fast charging. Ideal for quick power-ups before meetings, commutes or when you're rushing out the door
- Exact Battery % — No More Guessing: Unlike basic 4-light indicators, the digital display shows precise remaining power from 0–100%, just like your phone. No more unexpected shutdowns
- Check the exact SKU’s output-port types and ratings before connecting devices.
- Expect charging speed to depend on the connected devices, cable and supported protocol.
- Do not assume the USB-C port can provide its maximum output while other ports are in use; the cited material does not establish combined-output behavior.
How long does the Charmast 26800 take to recharge?
CleverHiker measured 6 hours 52 minutes to recharge its tested Charmast 26800 in 2024. That is a measured result for the tested unit and setup, not a guaranteed time for every W2002P/W2058P listing. The exact recharge time depends on which input you use and the charger and cable connected to it. CleverHiker also characterized recharge as slower than some competitors.
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The manual lists three input paths and documents USB-C as bidirectional, but the available sources do not establish one universal recharge time across the different input options. If a quick turnaround between travel days matters, confirm the input ratings for the exact model and allow for a potentially lengthy recharge.
Rank #3
- Triple 100W USB-C Ports for Multi-Device Charging: Ideal for laptop users, this 25,000mAh power bank features three 100W USB-C ports for simultaneous charging—perfect for remote work, home offices, or powering up multiple devices on the go.
- 25,000mAh for Long-Haul Power: Tackle week-long trips or extended camping with 25,000mAh capacity and ultra-fast recharge speeds for the power bank when used with a 100W or higher charger. (Note: Complies with 100Wh airline restrictions and is airline carry-on friendly.)
- Dual Built-In Cables for Travel: Features two USB-C cables, one extendable up to 2.3 ft with 20,000 retractions, and another at 0.98 ft cable that doubles as a durable carrying strap capable of enduring more than 20,000 bends. Built to handle family travel, outdoor activities, and emergency backup needs.
- Charge 4 Devices at Once: Power up smartphones, tablets, or other USB-enabled devices thanks to dual USB-C cables, a USB-A port, and a USB-C port.
- What You Get: Anker Power Bank (25K, 165W, Built-In and Retractable Cables), protective pouch, user manual, 18-month warranty, and our friendly customer service. (Note: Charger shown in the video is not included.)
Is it suitable for backpacking and travel?
At about 338–340g, this is a substantial item, but its capacity is high for that weight. CleverHiker rated its tested unit 4.2/5 in 2024 and described it as efficient, portable and durable, with the capacity to charge multiple devices. That supports carrying it when a long stretch away from outlets makes capacity more important than minimizing every gram.
When it makes sense
- You need a high-capacity bank for a multi-device trip.
- You value one larger battery over several smaller ones.
- You can plan around a recharge time that CleverHiker measured at nearly seven hours.
When to look elsewhere
- You prioritize a very light or compact pack above capacity.
- You need a fast recharge between outings.
- You expect reliable full capacity in cold conditions: CleverHiker reported capacity loss at low temperatures.
Airline rules vary by jurisdiction and carrier, and the available sources do not establish a universal policy for this bank. Check the current rules for your route and airline before flying rather than relying on the capacity label alone.
Rank #4
- Stay Powered Anywhere: This 20K portable charger delivers 3-4 full phone charges - ideal for camping, flights, or emergencies. Fits easily in backpacks to keep devices alive through weekend trips, festivals, or work travel
- 3-in-1 Built-in Cables: No more hunting for cables! This power bank has USB-C and Micro-USB cables built in, compatible with iPhone and most devices — just plug in and charge. No cord clutter, no hassle
- Wide Compatibility: Compatible with iPhone, Samsung Galaxy, Pixel, iPad, AirPods, Kindle and most tablets. No more carrying multiple chargers — one power bank covers your entire tech lineup
- 22.5W Fast Charging: Get up to a 50% charge in about 30 minutes with 22.5W fast charging. Ideal for quick power-ups before meetings, commutes or when you're rushing out the door
- Exact Battery % — No More Guessing: Unlike basic 4-light indicators, the digital display shows precise remaining power from 0–100%, just like your phone. No more unexpected shutdowns
Which Charmast 26800 model should you buy?
The manual identifies W2002P and W2058P variants, while retailer references are not perfectly aligned with the manual. The available evidence does not establish that every product sold as “Charmast 26800mAh” has the same output ports, charging rates or design. Choose by exact model number and confirm the listing’s specifications against the manual and seller details.
- Find the model number on the product listing or packaging.
- Match it to the manual’s W2002P/W2058P references rather than relying on “26800mAh” alone.
- Confirm the number and type of inputs and outputs, USB-C output rating and any simultaneous-output limits stated for that SKU.
- Check the seller’s regional return and warranty terms, which may differ from the official store’s offer.
Price, warranty and buying caveats
Charmast’s regional official-store page showed a price of €27.99, reduced from €35.99, along with a three-year warranty and a 30-day money-back guarantee when captured. These are regional listing terms and may change; check the current official product page for the offer that applies to your location. A universal current price is not established.
If buying through a marketplace, verify the specific model and seller’s return and warranty coverage before checkout. The name alone is not enough to confirm that a listing matches the manual’s variants.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
