I Tested $1500 Worth Of Battery Banks – Here's My Top 5

The best portable battery bank for your iPhone, iPad or MacBook isn’t going to be the most popular Amazon product. I’ve tested 12+ of the most popular 10k to 20k mAh battery banks on Amazon and here are my top picks!

I’ve based my ranking on 13 criteria including price, charge speeds, efficiency, size, heat, cables and extras. You won’t find a more detailed roundup for these battery banks!

Top 5 Portable 10k-20k mAh Battery Banks:

#1 – UGreen 100W Fast Charge Power Bank –
#2 – Anker Prime 20k Power Bank –
#3 – Anker Nano Power Bank –
#4 – INIU 65W 20k Power Bank –
#5 – Anker 733 GaNPrime PowerCore 65W –

In this video:

0:00 Intro
0:18 #5
1:47 #4
3:13 #3
4:48 #2
6:47 #1

#ReviewerNotInfluencer #Reviews #MobileReviewsEh

For those looking for the “Best Bang For Your Buck Portable Charger” for smartphones, check out the VoltMe Portable Charger 20W 20k (

#1 UGreen 100W Fast Charge Power Bank –
-The UGreen has a 20000 mAh capacity, confirmed in my tests.
-Three ports: USB-C (100W), USB-C (30W), and USB-A (22.5W).
-Recharges at 65W, just 30 mins slower than #1.
-The simple battery indicator says “more than power.” What else do I need in a power bank?
-At $90, it’s pricier than average but performs well. Not Anker Prime well but not a week’s worth of groceries.
-Downsides: It runs hotter at 55°F vs. 50°F average.
-It’s large and hefty, not pocket-friendly.
-The slick finish shows grease marks easily.
-All these seem trivial when you need a simple, powerful battery bank.

#2 Anker Prime 20k Power Bank –
-Performance-wise, this blows everyone else out of the water.
-Takes in 100W and charges fully in just over an hour with a 140W charger.
-Other 20k banks? 8 hours.
-Prime has three ports: two USB-C at 100W each, and one USB-A at 65W.
-It can charge two laptops at 100W each.
-Seriously, two laptops, one battery bank.
-BUT 20,000 mAh isn’t enough for two laptops.
-It has a smart screen showing power levels, recharge time, and power draw.
-Most of this info isn’t critical, just cool to have.
-Pitfalls: Efficiency isn’t great. Anker claims 20K, I observed around 18.5K.
-It’s heavy, at 536g. The next heaviest is 480g.
-Price is $150, plus $70 for an optional charging base.

#3 Anker Nano Power Bank –
-It has two ports, USB-C and A, plus a built-in USB-C cable.
-Max output wattage is 30W for USB-C, which charges phones and most iPads, and 22.5W for USB-A.
-It charges fully in about 90 mins, much faster than the average 4 hours for other 10k banks.
-Anker has placed a screen under the cover to show you power levels, unlike the usual 4 dots.
-I’m a fan of the built-in cable design because you don’t need to bring an extra cable and it feels more secure.
-No difference in charge speeds between the built-in cable and my own.
-Biggest downside: efficiency test showed around 9600 mAh instead of the 10k mAh capacity.
-Not a fan of how the back wears.
-At $70, it’s one of the pricier battery banks, but cheaper than the Top 2 and best for smartphones.

#4 INIU 65W 20k Power Bank –
-Unlike the #5 pick, it outputs 65W, great for MacBook Pro use.
-It has three ports: two USB-C, one USB-A, with clearly labeled wattages.
-Charges at 45W, full charge in 2.5 hours. Some packs take 8 hours, so this is quick.
-The front looks like it has a large screen but doesn’t.
-Soft rubber finish improves handling.
-Has a hook stand for your device during charging.
-Cons: it runs hot, clocking in at 61 degrees.
-Size and weight are its main downsides.
-At $40, it’s affordable with a 65W output, making it great for laptops.

#5 Anker 733 GaNPrime PowerCore 65W –
-#5 for battery banks, but my summer go-to.
-The Anker 733 GaNPrime has a stated capacity of 10000 mAh, my tests show around 11000.
-It uses 4 LED lights for battery level.
-It has three ports: two USB-C (30W each) and one USB-A (22.5W).
-Runs cool, likely due to its bigger size and heatsink.
-I initially thought it outputs 65W, but it doesn’t.
-It fast charges iPhones and smaller iPads, but not larger ones.
-65W output only when plugged into a socket.
-Less to carry, always topped off, and easy to locate.
-Downside: the price is around $90, almost double the average.
-BUT you get what you pay for.

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