The 140W output tier is the only category bracket that delivers full-speed charging to MacBooks, iPads, and phones at once — without forcing you to choose which device gets priority.
The 140W maximum output sits in the highest wattage tier for portable chargers — the bracket where laptop charging stops being theoretical. A 16-inch MacBook Pro pulls around 96W when charging under load; most competing power banks cap at 65W or 100W, which means your laptop charges slower than it drains when you're working.
The 140W headroom means your devices charge at their maximum rated speed, even when running intensive apps. The top USB-C port delivers the full 140W when used alone, or splits intelligently across ports — 65W to your laptop, 30W to your tablet, and 18W to your phone simultaneously.
Get 140W PowerTwo USB-C ports and one USB-A port let you charge three devices at once without rotating through your gear. The power distribution isn't equal-split — the 737 uses intelligent load balancing that prioritizes the device drawing the most power.
When all three ports are active, the top USB-C delivers up to 65W (enough for most 13-inch laptops), the second USB-C provides 30W (tablet or phone fast-charging speed), and the USB-A outputs 18W (legacy device charging). No rotating. No waiting.
Charge EverythingThe 737's 24,000mAh capacity translates to about four full charges for an iPhone 15, two full charges for an iPad Air, or one and a half charges for a 16-inch MacBook Pro. Real-world runtime: two to three days of regular phone and laptop charging before needing to recharge the bank.
The front-facing digital display shows the remaining battery percentage and the live wattage output to each connected device. When you plug in your laptop, you see the number jump to 65W; unplug it and the display drops to the phone's 18W draw.
That real-time feedback removes guesswork. You know which device is pulling power, whether your laptop is charging or just maintaining, and how much runtime remains before the bank runs dry. Most power banks give you four LED dots and a prayer; you know exactly where you stand.
See It In ActionHigh-wattage charging generates heat — that's physics. The question is whether the power bank manages it. Anker's ActiveShield 2.0 system checks the internal temperature over 3 million times per day and adjusts output if the battery starts running too hot.
It works. It gets warm during fast charging (expected for 140W output) but never reaches the "too hot to hold" threshold that signals a safety problem. The system also monitors for voltage spikes, current surges, and short-circuit conditions — invisible safeguards that matter most when you're charging a $2,000 laptop.
Learn About SafetyThe 737 supports bidirectional fast charging — it charges your devices quickly, and it recharges itself quickly when you plug it into a wall adapter. With a 140W PD 3.1 charger, the bank goes from empty to full in about 80 to 90 minutes.
That speed matters when you land at a hotel late and need the bank ready by morning, or when you have a 90-minute layover and want to top off before your next flight. Most 20,000mAh+ power banks take three to five hours to recharge; the 737 cuts that window to under two.
Anker backs the 737 with a 30-day money-back guarantee — if it doesn't charge your devices as fast as expected or the capacity doesn't match your travel needs, return it for a full refund. Beyond the trial window, the company provides lifetime customer support and has been the #1 mobile charging brand globally for six consecutive years.
Reliability matters when you're traveling. When a power bank fails mid-trip, you need a company that answers the phone. The 30-day window gives you enough time to test the bank through a full work trip or weekend getaway before committing.
Start Your TrialReal buyers report the 737's fast-charging speed and multi-day runtime exceeding expectations — especially during extended travel where outlet access is scarce. The weight comes up as a trade-off (it's heavier than lower-capacity banks), but most find the power delivery capability justifies the bulk.
The 140W spec is real — verified by third-party testers and confirmed in customer reviews. Whether it charges YOUR laptop at full speed depends on your laptop's maximum charging rate (a 13-inch MacBook Air maxes out at 67W, so the 737's extra headroom goes unused). The questions below cover the most common compatibility and performance concerns.