Power banks are the gadget category most people get wrong. They buy too much capacity, too few ports, or no USB-C PD at all. Then the brick lives in a drawer because it can't keep up with their actual devices. This guide fixes that.
We tested across phones, laptops, tablets, and the typical travel setup of two devices charging simultaneously.
What changed in 2026
The category caught up with USB-C and GaN technology.
- 140W is the new ceiling for portable. This charges a 16-inch MacBook Pro at full speed.
- Bidirectional MagSafe-compatible packs finally caught up to wired speeds.
- TSA limits unchanged. 100Wh is still the limit on planes; many large packs still exceed it.
How we picked
- Real capacity — measured at 5V output, not the marketing mAh.
- Charge speed in and out — both matter.
- Weight per Wh — efficiency of battery design.
- Number of usable ports — and how power splits when multiple are in use.
- Build quality — does the port survive 200 plug cycles.
1. Anker Prime 27,650 — best premium
The Prime 27,650 is the closest thing to a perfect power bank we've tested. 250W of total output across three USB-C ports, an OLED display showing remaining capacity and live wattage per port, and Anker's seven-year track record of supporting their flagship line. It powers a MacBook Pro and a phone simultaneously without throttling.
Trade-off: heavy at 1.4 lbs and over 100Wh, which means TSA-edge for international flights. Check airline rules before you travel.
2. UGreen Nexode 100W — best value
The Nexode 100W slab gives you 65W laptop charging, two USB-C ports, and a USB-A for your old cables. It's a third the price of the Prime and covers 90% of what most people need. UGreen's quality has been consistent over the past few years.
Trade-off: no display, smaller capacity (20,000 mAh), and only one device can pull full power at a time.
3. Anker Nano 5,000 — best daily carry
The Nano 5,000 is the bank you actually take with you. It's the size of a credit card stack, MagSafe-compatible for iPhones, and adds enough juice to get you through an afternoon. The newer version supports 30W passthrough.
Trade-off: capacity is small. Don't expect to charge a tablet from it. It's a top-up, not a primary power source.
Comparison: portable chargers in April 2026
| Pick |
Price |
Key feature |
Best for |
| Anker Prime 27,650 |
$179 |
250W, 3 USB-C |
Premium |
| UGreen Nexode 100W |
$89 |
Value laptop power |
Most users |
| Anker Nano 5,000 |
$35 |
Pocketable + MagSafe |
Daily carry |
| Anker 737 GaNPrime |
$149 |
Bidirectional 140W |
Travelers |
Common mistakes to avoid
Buying for max mAh. Most claims are at the cell voltage (3.7V), not at output. A 20,000 mAh pack outputs about 13,000 mAh of usable phone charges.
Forgetting the cable. A USB-C PD pack with a USB-A to Lightning cable charges your phone at iPhone 6 speeds. Bring a USB-C to Lightning or USB-C to USB-C.
Ignoring TSA limits. Anything over 100Wh requires airline approval and is often refused. Stick under 100Wh for international.
FAQ
MagSafe wireless or wired charging?
Wired is faster and more efficient. MagSafe is convenient. For long sessions, wired wins.
Do I need 100W to charge a MacBook?
Pro models charge fastest at 65–96W. Air models charge fully at 30W. Check your laptop spec, not the highest available wattage.
How long does a power bank last?
Cells degrade after ~500 full cycles. Most users get 3–5 years before noticeable capacity loss.
Where to go next
For related guides see Best USB-C hubs in 2026, Best portable monitors for laptops in 2026, and Best portable SSDs in 2026.