No Qi2 phone charging here
The wireless output serves the watch only. Phone-side magnetic charging needs the MagGo Qi2 models instead, so do not conflate the two MagGo lines.
Power banksSections
Anker · United States · compact
Anker MagGo Apple Watch 10K 35W Power Bank review
Exact model: A1657
Product identity · checked 2026-10-12
Our take
Pick this if you travel with an Apple Watch and want to leave its separate charger at home. The built-in puck is the reason to carry it. For a phone alone, compare a lighter bank.
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Availability checked 2026-10-12. Stock can change. We may earn a commission.
Manufacturer ratings. Tap a reading for its source.
- Rated capacity
10000 mAh. Show source
claimed sourceanker.comchecked 2026-10-12 · Manufacturer-rated capacityhttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Single-port output
30 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Strongest wired USB-C output from one port · Maximum from one USB-C cable or port. The 35W product rating adds the 5W watch charger.https://www.anker.com/products/a1657-maggo-10000mah-power-bank- USB-C input
30 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Strongest standard single-port USB-C input · Maximum USB-C input. Marketing ties the 1.5-hour recharge to a 30W input setup.https://www.anker.com/products/a1657-maggo-10000mah-power-bank- Weight
245 g. Show source
claimed sourceanker.comchecked 2026-10-12 · Manufacturer-listed product weight · OEM lists 8.64 oz / 245g.https://www.anker.com/products/a1657-maggo-10000mah-power-bank- Combined output
35 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Combined output; not one-port output · Single USB-C at 30W plus the 5W watch charger. Cable plus port together are rated 24W.https://www.anker.com/products/a1657-maggo-10000mah-power-bank
The buying decision
Should you buy it?
For a watch and phone traveling together
Anker lists an Apple-certified Watch charger rated at 5W beside a built-in cable and USB-C port, each rated at 30W when used alone. That covers an overnight watch charge plus a fast phone top-up from one 245g pack.
Know this before you buy
The Watch puck and dual 30W paths push listed weight to 245g. Travelers without an Apple Watch get the same phone charging from lighter packs.
Check support for your exact watch model and leave enough wired output for your phone. Plan your travel charging kit.
Computed from sourced ratings
USB-C and carry score
Compared with 14 published everyday power banks. This score balances wired charging, rated capacity and weight.
56/100
everyday comparison
- USB-C output
30 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Maximum from one USB-C cable or port. The 35W product rating adds the 5W watch charger.https://www.anker.com/products/a1657-maggo-10000mah-power-bank- Rated capacity
10000 mAh. Show source
claimed sourceanker.comchecked 2026-10-12https://www.anker.com/products/a1657-maggo-10000mah-power-bank- USB-C refill
30 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Maximum USB-C input. Marketing ties the 1.5-hour recharge to a 30W input setup.https://www.anker.com/products/a1657-maggo-10000mah-power-bank- Carry weight
245 g. Show source
claimed sourceanker.comchecked 2026-10-12 · OEM lists 8.64 oz / 245g.https://www.anker.com/products/a1657-maggo-10000mah-power-bank
58/100 within the group · 35% weight
65/100 within the group · 25% weight
88/100 within the group · 20% weight
8/100 within the group · 20% weight · lighter scores higher
What this score tells you
Each reading gets a percentile within its group. Higher output, capacity and input score better. Lower weight scores better. Ties share a midpoint. We combine those percentiles using the weights above and round the final result.
A score of 100 means the strongest combination in this peer set, not a perfect power bank. Scores can change when we update a rating or publish another model. Compare scores within the same group.
The score does not include wireless charging, weather protection, price or safety. Capacity is the manufacturer’s mAh rating, not usable USB energy or a phone recharge count. Check the verdict and charging limits before you buy.
Formula version 1.0. Source dates are attached to each reading. See the full method.
What changes the choice
Other drawbacks to consider
Before connecting devices
Ports and charging behavior
A port’s published maximum and the combined multi-port limit are separate ratings. A device can draw less than the bank’s maximum based on its own requirements and the negotiated charging profile.
Refill at up to 30W over USB-C
Input matches output at 30W, with a stated 1.5-hour full recharge on a matching charger. Use a charger and cable that support the bank’s input profile.
Cable plus port share 24W
One wired path reaches 30W alone. Using the built-in cable and the USB-C port together caps the pair at 24W, while the 5W watch charger stays available alongside.
Port limits and supported profiles
Built-in USB-C cable · built-in-usb-c
Supported charging profiles: 5V⎓3A / 9V⎓3A / 12V⎓2.5A / 15V⎓2A / 20V⎓1.5A
Anker MagGo Power Bank for Apple Watch (10K, 35W), US product specifications · checked 2026-10-1230 W maxclaimed. Show source
claimed sourceanker.comchecked 2026-10-12 · Maximum manufacturer rating for this porthttps://www.anker.com/products/a1657-maggo-10000mah-power-bankUSB-C port · USB-C
Supported charging profiles: 5V⎓3A / 9V⎓3A / 12V⎓2.5A / 15V⎓2A / 20V⎓1.5A
Anker MagGo Power Bank for Apple Watch (10K, 35W), US product specifications · checked 2026-10-1230 W maxclaimed. Show source
claimed sourceanker.comchecked 2026-10-12 · Maximum manufacturer rating for this porthttps://www.anker.com/products/a1657-maggo-10000mah-power-bankApple Watch charger · wireless
Anker MagGo Power Bank for Apple Watch (10K, 35W), US product specifications · checked 2026-10-125 W maxclaimed. Show source
claimed sourceanker.comchecked 2026-10-12 · Maximum manufacturer rating for this porthttps://www.anker.com/products/a1657-maggo-10000mah-power-bank
Manufacturer documentation
Specifications
These figures are manufacturer claims. Open a reading for its dated source. We show watt-hours only when the manufacturer publishes them.
- Rated capacity
10000 mAh. Show source
claimed sourceanker.comchecked 2026-10-12 · Manufacturer-rated capacityhttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Rated energy
37 Wh. Show source
claimed sourceanker.comchecked 2026-10-12 · Only an explicit manufacturer watt-hour figure is shownhttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Strongest single USB-C output
30 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Maximum rating for one wired USB-C porthttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Combined output ceiling
35 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Combined multi-port maximum; distinct from one-port outputhttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Strongest standard USB-C input
30 W. Show source
claimed sourceanker.comchecked 2026-10-12 · Single standard USB-C input; proprietary dock excludedhttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Weight
245 g. Show source
claimed sourceanker.comchecked 2026-10-12 · Manufacturer-listed product weighthttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Exact revision
US A1657 retail model (MagGo with Apple Watch charger). Its wireless output is watch-only at 5W, not a Qi2 phone pad. Show source
claimed sourceanker.comchecked 2026-10-12 · Exact manufacturer model and revisionhttps://www.anker.com/products/a1657-maggo-10000mah-power-bank- Dimensions
3.74 × 2.01 × 1.28 in / 95 × 51 × 32.4 mm. Show source
claimed sourceanker.comchecked 2026-10-12 · Manufacturer-listed dimensionshttps://www.anker.com/products/a1657-maggo-10000mah-power-bank
Exact-model questions
Frequently asked questions
Which Apple Watch models fast-charge on the puck?
Apple lists Series 7 and later, Ultra models and SE 3 as fast-charge-capable watches. Older SE models do not support it. Anker’s A1657 page still excludes SE without distinguishing generations, so fast charging on SE 3 is not confirmed for this bank. Check exact watch compatibility before buying for that feature.
Is this the Qi2 magnetic phone bank?
No. The A1657 charges phones over its cable and USB-C port only. Its wireless output is a 5W Apple Watch charger. The Qi2 phone pad belongs to the A1654 and A1664.
Evidence record
Sources
We use dated manufacturer documentation for the product identity and claims shown on this review.
Documents and check dates
- Apple Watch models and requirements for fast charging
https://support.apple.com/en-us/102454
Checked 2026-10-12
- Anker MagGo Power Bank for Apple Watch (10K, 35W), US product specifications
https://www.anker.com/products/a1657-maggo-10000mah-power-bank
Checked 2026-10-12
- Anker-hosted A1657 product image
https://cdn.shopify.com/s/files/1/0493/9834/9974/files/A1657011_Rich_image_TD01_US_V2.png?v=1749733785
Checked 2026-10-12
Review updated 2026-10-12. Ratings are manufacturer claims tied to the cited documents.
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