This 48000mAh power bank is now a thousand crowns cheaper! It has very fast charging and five ports

As part of Black Friday, Alza is dropping the price of the UGREEN 48000mAh 300W power bank from the original 3,999 CZK to 2,993 CZK. For less than three thousand, you get a large-capacity power bank with 48000 mAh, 140W bidirectional charging, and 5 ports (3× USB-C, 2× USB-A). The main advantage? LiFePO4 cells, which are safer than regular lithium batteries and last up to 3000 charging cycles. But beware – it weighs 1637 grams, so it’s not a power bank for everyday carrying. It’s more of a backup power source for longer trips, camping, or as a backup during power outages.

LiFePO4 Cells

The biggest advantage of the UGREEN power bank is its LiFePO4 cells (lithium iron phosphate). Unlike regular lithium batteries, they have a significantly lower risk of overheating, overvoltage, or ignition. And most importantly – they last up to 3000 charging cycles while retaining 80% of their original capacity.

What does this mean in practice? If you charge the power bank once a week, it will last you over 57 years. If you charge it every day, it will last 8+ years.

48000 mAh: How many times it charges what

A capacity of 48000 mAh sounds impressive, but what does it mean in practice? According to specifications:

• iPhone 15 Pro – 10.8× charge
• MacBook Air M2 – 1.1× charge

A customer from Rokycany points out: “The power bank is very good for smartphones, headphones, smartwatches, but not for laptops. The capacity is not enough for a laptop.” This confirms the spec – one charge of a MacBook Air M2 almost exhausts the entire capacity. But for phones and smaller devices, it’s great.

Fast Charging: 140W in 1.5 hours

The UGREEN power bank features 140W bidirectional PD 3.1 charging. This means it fully charges in 1.5 hours (with a 140W adapter). That’s fast – most large power banks take 4-6 hours to charge.

But beware – a customer from Veľká Lomnica noted strange behavior: “The first charge was strange. From 20% to 99% took 15 minutes. But the last percentage took more than an hour.” This sounds like a battery calibration issue during the first charge, but it’s hard to say if it’s common.

Total power of 300 W means you can charge up to 5 devices simultaneously – a laptop (140W), phone (65W), headphones, watch, etc. A 240W USB-C cable is included in the package.

What else it offers

An LED flashlight with three modes (high brightness, low brightness, SOS) – useful for camping or during power outages. The display shows current capacity, input, and output power. Multi-level protection against overvoltage, overheating, short circuit, overcharging, and overcurrent also comes in handy.

Main drawback: Weight 1637 grams

The UGREEN power bank weighs 1637 grams and has dimensions of 145 × 106 × 77 mm. A customer from Rokycany writes: “It’s very good for long journeys, but not for everyday use due to its weight and size.”

For comparison: typical 20000 mAh power banks weigh around 400-500 grams. The UGREEN is more than three times heavier. This isn’t an issue if you leave it in your car, at a cabin, or use it as a backup power source at home. But it’s not ideal for a backpack for daily commuting.

Who it makes sense for

The UGREEN 48000mAh 300W for 2,993 CZK makes sense if:

• You’re going on a longer trip or camping – 10 phone charges will last a week
• You want a backup power source during a power outage – weight doesn’t matter when it stays at home
• You need a safer power bank – LiFePO4 is the top choice
• You charge multiple devices simultaneously – 5 ports are enough for the whole family
• You want a long lifespan – 3000 cycles = 8+ years with daily charging

Conversely, it doesn’t make sense if:

• You want a power bank for your backpack for everyday use
• You mainly charge a laptop
• You need something compact

Conclusion: Backup power source for longer trips

The UGREEN 48000mAh 300W for 2,993 CZK is a solid deal for those who need large capacity and safe LiFePO4 cells. 3000 charging cycles mean the power bank will last for years, 140W fast charging is convenient, and 5 ports are enough for the whole family.

But it’s not a universal solution. The weight of 1637 grams makes the power bank more of a backup power source for longer trips, camping, or as a backup during power outages – not for everyday carrying in a backpack. And it’s not ideal for laptops, as the capacity is only enough for one full charge. The 4.8/5 star rating on Alza confirms it’s a quality product. The power bank is available in stock at Alza.

What do you think of this discount?