Key takeaways
- Cheapest pick worth buying: INIU Portable Charger 10000mAh 22.5W ($17 – $25).
- Known brands with safety certification cost a little more and are much safer.
- 10,000 mAh refills a phone about twice; 20,000 mAh or more suits laptops and trips.
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You do not need to spend a lot to get good power banks. These are the cheapest power banks we would still buy in the US, sorted by typical price.
Prices are typical ranges, not live prices. The button on each pick opens the current price.
Budget picks at a glance
| Product | Verdict | Score | Typical price |
|---|---|---|---|
| INIU Portable Charger 10000mAh 22.5W | Buy | 7.9/10 | $17 – $25 |
| Anker Nano Power Bank (10K, 30W, Built-In USB-C Cable) | Buy | 8.7/10 | $29 – $45 |
Budget picks in detail
INIU Portable Charger 10000mAh 22.5W
Budget · Verdict: Buy · Score: 7.9/10 · Typical price: $17 – $25
Why we like it: Slim, cheap and reliable.
Pros: Very affordable · Slim and light · USB-C input and output
Cons: Slower than premium banks · Basic LED indicator
Buy it if you want an inexpensive backup battery for a phone in a bag or glovebox.
Skip it if you want fast laptop charging or a premium build.
Anker Nano Power Bank (10K, 30W, Built-In USB-C Cable)
Everyday carry · Verdict: Buy · Score: 8.7/10 · Typical price: $29 – $45
Why we like it: Built-in cable means you never forget one.
Pros: Built-in USB-C cable · Compact for a pocket or small bag · 30W fast charging for phones
Cons: Not enough power for most laptops · Built-in cable cannot be replaced
Buy it if you want a compact power bank for daily use that always has a cable attached.
Skip it if you need to charge a laptop or several devices at once.
How to save money
Known brands with safety certification cost a little more and are much safer.
The deepest discounts usually arrive during the big summer sales in July, the October sales events and Black Friday through Cyber Monday in late November.
Where not to cut corners
10,000 mAh refills a phone about twice; 20,000 mAh or more suits laptops and trips.
Common mistake: Buying cheap unbranded power banks with inflated capacity claims.
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Frequently asked questions
What are the best cheap power banks in the US?
The cheapest model we would still buy is INIU Portable Charger 10000mAh 22.5W, typically $17 – $25.
Are cheap power banks worth it?
Known brands with safety certification cost a little more and are much safer. Do not compromise on the basics, though. 10,000 mAh refills a phone about twice; 20,000 mAh or more suits laptops and trips.
When are power banks cheapest in the US?
The deepest discounts usually arrive during the big summer sales in July, the October sales events and Black Friday through Cyber Monday in late November.