| Pros | Cons |
|---|---|
| Stylish transparent design | Poor discharge efficiency |
| Dual PPS ranges | Inconsistent performance |
| Colorful LED screen is a nice touch | Misleading label |
| Includes pouch and cable |
When it comes to tech, you usually get what you pay for. But the Sharge 140W Transparent Power Bank with Screen Display flips that logic on its head. Despite looking like a high-end, future-proof power bank, this product stumbled in almost every performance metric we tested. Let’s get into why this power bank just doesn’t deliver where it counts. Looking for power banks that actually perform? Check out our Top 5!
How We Test
We’re reviewers – not influencers. What does that mean? It means we test everything our way before we share the results. None of the content we produce is sponsored so you don’t have to wonder if we’re just trying to sell you something.
For battery banks in 2025, here’s what what we tested:
- Charging protocols – We did timed charge tests for every protocol that the battery bank claimed. For example, a battery bank might advertise PDO’s of 15W, 27W and 60W. We would run voltage stability tests for each rate. We do the same for PPS as well.
- Temperature – We captured the temperature of the battery bank for all the charge tests and noted any overheating, throttling or failure to maintain the chosen output.
- Capacity test – We fully charged and discharged each battery bank using a PD controller and an e-load. This method pushes the battery harder than normal use, revealing when it fails to maintain proper output instead of just dropping to a lower voltage.
- Recharge tests – We measure and timed the amount of energy required to fill the battery bank completely. We didn’t rely on the counters on the packs, instead we had hard cutoffs coded into our test programs
- Efficiency – From our charge/discharge tests, we calculated several efficiency values to see how much usable energy you get compared to how much went in.
Design
There’s no denying the Sharge 140W looks great. The transparent casing and multicolored LED screen make it one of the most eye-catching power banks we’ve tested. It has a 72Wh (20,000mAh) capacity, one USB-C port, and one USB-A port. The LED display is actually useful and stylish, which is rare. But sadly, that’s where the positives end.
Sharge claims this battery bank supports 140W output, which sounds massive. But here’s the catch: it’s split between 100W on USB-C and 40W on USB-A. Technically not lying but definitely not as impressive once you break it down (we thought it was an EPR rated product). Still, it offers 7 PDOs and two PPS modes (3A @ 3–11V and 3A @ 5–21V), so it’s fairly versatile for most devices.
Performance
On paper, the specs look solid. But in the real world, the Sharge 140W buckled under pressure. Our fixed PDO tests showed decent accuracy at 90.5%, and PPS performance wasn’t bad at 80.9%. However, when we stress-tested it with a full drain at 100W, it overloaded three times (once at 65%, again at 33%, and finally died completely at 30% remaining). No fallback, no thermal throttling, just a hard shutdown. The energy output was close to average, so it likely wasn’t the batteries that failed.
The measured output was 40.16Wh out of a stated 72Wh, giving it an awful efficiency score of 55.8%. Recharge speed was better: with 65W input, it fully recharged in just over 90 minutes. But performance-wise, this thing simply doesn’t back up its design or price tag.
The best products we tested have efficiency scores around 70%!
Thermals
We thought thermal issues might explain the early shutdowns, but Sharge actually runs cool. Discharge temps stayed at 38.8°C and recharge temps at 35.6°C, which is well below average. So the problem clearly wasn’t heat but the controller being not great (that’s our best guess).
Value
And here’s where it gets frustrating: Sharge 140W 20k Battery Pack costs $110. For that price, you’d expect top-tier performance. It includes a pouch and a cable, and it’s one of the best-looking power banks on the market. But none of that matters if the internal components can’t keep up.
Verdict
Would we recommend the Sharge 140W Transparent Power Bank? Absolutely not. It’s a case study in overpromising and underdelivering. The design is flashy, the LED counter is fun, and the packaging feels premium—but the performance is a letdown across the board. If you want a reliable power bank that can handle high-speed charging without falling apart, keep looking. This one’s all show, no charge.
If you want to see what our Top 5 Battery Banks are for 2025, check out this list!