INIU Carry P512 20,000mAh Power Bank (22.5W) Review
INIU's P512 has become the default budget answer at 20,000 mAh, and with tens of thousands of ratings the evidence is strong enough to take seriously.
The verdictThe value pick at 20,000 mAh: the same 74 Wh as the Anker, lighter and cheaper, with a longer warranty. Plan on overnight refills.
INIU rates the P512 at 20,000 mAh, or 74 Wh, and says 60 to 70 percent of that reaches your devices after conversion losses. It weighs 313.5 g and measures 10.4 x 7 x 2.9 cm, which sits flat in a frame bag or a large top tube bag. A short braided USB-C cable comes with it and doubles as a lanyard, so there is one less cable to forget.
The trade is charging speed. Each port gives up to 22.5 W, but the total drops to 15 W when several devices charge at once, and the 20 W input means about 5.4 hours to refill from a 20 W charger. That suits an overnight refill at a campsite or hostel and does little at a 40-minute cafe stop.
INIU backs it with a three-year warranty, twice Anker's 18 months on the comparable bank. Owner ratings on Amazon US sat at 4.6 stars across 29,260 in October, shared across colours, and the most common complaint in the review summary is units that failed within months. At this price that is a risk worth weighing against a premium brand.
What works
- 74 Wh at about 314 g
- Three-year warranty
- Detachable USB-C cable doubles as lanyard
What doesn't
- About 5.4 h to refill from 20 W
- 15 W total when charging several devices
- Owner reports of early failures
Buy it if
Riders on trips with days between sockets who want high capacity at low weight and price, and charge overnight
Skip it if
You need to refill the bank fast at cafe stops, or want to charge a laptop at speed
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