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In this guide
Amazon.ca lists the Zolo 10K (model A1688) at C$40.99, marked down from a C$45.99 list price, sold by AnkerDirect-CA and shipped by Amazon. The listing's box contents are short: the bank with its 13.7 cm built-in USB-C cable and an 18-month warranty. There is no wall charger in the package.
Before the 30 W headline, read the capacity line in Anker's FAQ. It discounts its own 10,000 mAh rating by 35 percent and says a full Zolo typically gives 5,500 to 7,000 mAh. That range decides how far the bank gets you on a commute, a flight or a cottage weekend.
Our verdict
At C$40.99, a fair price for a phone-only bank once you plan around Anker's usable 5,500 to 7,000 mAh. The built-in cable is the reason to buy it and the part most likely to end its life.
- A good fit for
- A phone owner who forgets cables, wants a single object in a jacket pocket, and is content with one full charge plus a top-up.
- We would skip it if
- You expect three charges from 10,000 mAh, want to power a laptop, or plan to fast-charge two devices together; with more than one connected, total output is 15 W.
Reasons to consider it
- Anker's FAQ gives the arithmetic: rated capacity × 0.65, about 1.67 charges for a phone with a 3,877 mAh battery
- 30 W out and 20 W in, about 2.5 hours to refill on a 20 W charger by Anker's estimate
- A digital percentage readout and a low-current mode for earbuds and watches
The compromises
- The 13.7 cm cable is permanently attached; once it frays, only the USB-C and USB-A ports and your own cable remain
- Pass-through charging is limited to 5 V / 3 A and Anker excludes laptops from it
- Connecting a second device cuts the total to 5 V / 3 A, 15 W
What we have not verified: Nobody has measured the energy this unit delivers, how the attached cable holds up after years of bending, or how the cells age; the 0.65 factor and the 10,000-bend claim come from Anker.
The things in this guide
A closer look at the products, who they may suit, and what to check before buying.
Zolo Power Bank · 10K, 30W, Built-In Cable
Carrying the cable inside the bank removes the most common reason a charged power bank is useless, and Anker publishes the usable range rather than leaving buyers to the label.
Before you buy: Count on about 1.5 phone charges, and treat the short attached cable, which cannot be replaced, as the part that will wear first.
Price checked November 5, 2026. Retailer prices can change.Anker's own discount on the label
Anker's FAQ blames energy lost in the cells and circuitry for a 30 to 45 percent shortfall and puts a full Zolo at about 5,500 to 7,000 mAh delivered. The worked example, 10,000 × 0.65 divided by a 3,877 mAh phone battery, comes to about 1.67 charges.
Plug your own phone's battery size into that formula. Anything bigger than the example gets fewer top-ups, and a tablet may not reach one full charge. For a day of navigation and photos away from an outlet, that is enough; for three days at a campsite, it is not.
The built-in cable is the feature and the weak point
The USB-C lead is 13.7 cm long and fixed to the body. It delivers up to 30 W to a phone and also takes charge back in, while a separate USB-C port labelled IN/OUT covers refilling if the attached lead is in use. Amazon.ca's bullets claim the cable survives more than 10,000 bends, which is Anker's own test.
Day to day, that means one less thing to pack. Over a few years it means a part that cannot be replaced: when the strain relief gives out, the ports still work with a cable of your own, and the bank loses the one thing it does better than a loose cable.
Thirty watts is a phone number, not a laptop number
Anker specifies 30 W out, 20 W in, roughly 2.5 hours to refill on a 20 W charger, and pass-through limited to 5 V / 3 A with laptops excluded. A double press of the button engages a low-current mode for small accessories.
Most phones accept less than 30 W, so the ceiling rarely matters for them. A notebook is another story: even a small one draws more than this bank can supply while it is running, and the bank cannot act as a buffer between a wall charger and a laptop.
Three outputs share 15 watts
Next to the attached cable there is a USB-C port and a USB-A port, so three devices can charge at once. Anker's note on that layout matters more than the port count: with more than one output in use, total output drops to 5 V / 3 A, 15 W.
The listing gives the body as 4.32 × 2.58 × 0.98 inches, about 110 × 66 × 25 mm, and Anker lists 212 g. Since the box holds no charger, a USB-C wall charger of at least 20 W is part of the real cost if you do not have one.
Who should look elsewhere
Skip it if a good cable already lives in your bag and you want two phones fast-charging side by side. The 15 W shared limit means neither will charge at full speed.
Skip it as well if a laptop is on the charging list. The 30 W ceiling and the pass-through exclusion leave it short, and a bank with a published laptop-class USB-C output is the better use of the money.
How we put this together
Built from the product pages and listings below, without test scores or results we have not measured. Specifications and prices change, so check the original page for the exact model, current price, delivery, and returns.
- Amazon.ca: Anker Zolo Power Bank 10,000 mAh 30W (A1688) (opens in a new tab)
- Anker: Zolo Power Bank (10K, 30W), model A1688 (US product page) (opens in a new tab)
