When you need a power bank that can keep your devices running through long trips, workdays, or emergencies, the Anker PowerCore 20,100mAh Portable Charger is a solid choice. It delivers reliable charging performance, a high-capacity battery, and durable construction—though it’s not without some trade-offs.
Key Features & Performance
High Capacity With Real-World Usability
With a 20,100mAh capacity (rated at 72.36Wh), this power bank can recharge an iPhone 15 up to four times, a Samsung Galaxy S23 three times, or a MacBook Air once with some juice to spare15. Unlike some competitors that exaggerate capacity, Anker’s power banks tend to deliver closer to their advertised specs, making this a dependable option for travelers and heavy users.
Fast Charging, But With Some Limitations
The PowerCore supports Power Delivery (PD) via USB-C (up to 20W) and Anker’s PowerIQ 3.0 on the USB-A ports, which dynamically adjusts power output for faster, more efficient charging68.
USB-C PD (20W): Good for iPhones, iPads, and some Android phones.
Dual USB-A (12W total): Best for older devices or secondary gadgets like earbuds.
However, it doesn’t support QC 3.0 or higher-wattage PD (like 30W+), meaning some laptops and fast-charging Android phones won’t reach peak speeds610.
Durable & Travel-Friendly
The aluminum shell feels premium and resists scratches, while the compact cylindrical shape (though slightly heavy at ~460g) fits well in backpacks37. It’s also FAA-compliant (under 100Wh), so you can bring it on flights without issues5.
Pros & Cons
What We Like
✔ High, reliable capacity – Enough for multiple full charges.
✔ USB-C PD + PowerIQ – Faster charging than basic power banks.
✔ Solid build quality – Aluminum casing holds up well over time.
✔ Multi-device charging – Two USB-A and one USB-C port.
What Could Be Better
✖ No wireless charging – Some competitors offer this convenience.
✖ Heavier than some rivals – At ~460g, it’s not the lightest option.
✖ No included wall charger – You’ll need your own PD charger for fastest refills18.
Who Should Buy This?
✅ Frequent travelers – Its capacity and durability make it great for trips.
✅ Multi-device users – Can charge a phone, tablet, and earbuds at once.
✅ Those who prioritize reliability – Anker’s reputation for quality holds up here.
❌ Ultra-lightweight seekers – Smaller power banks (10,000mAh) may be more portable.
❌ Wireless charging fans – Look for models with Qi support.
Final Verdict & Where to Buy
The Anker PowerCore 20,100mAh is a practical, no-nonsense power bank for those who need extended battery life without gimmicks. While it lacks wireless charging and ultra-fast PD speeds, its durability, real-world capacity, and multi-port flexibility make it a strong choice.
🔗 Buy the Anker PowerCore 20,100mAh on Amazon SG
Alternatives to Consider
Anker 737 (PowerCore 24K) – Higher capacity (24,000mAh) and 140W PD, but bulkier.
Anker PowerCore Slim 10K – Much lighter, but less capacity.
If you need a dependable, high-capacity power bank without unnecessary extras, the Anker PowerCore 20,100mAh is a well-rounded pick. Just be sure to pair it with a 20W+ PD charger for the fastest recharging.