Green Cell PowerPlay 20S 20000 mAh Powerbank - Panther Black

K... Review confirmed by purchase

80%

14.05.2026

Review for model:

Very useful battery, but it's a shame you can't recharge it using the USB A port—only the two USB-C ports allow charging. The diamond-shaped design is a bit confusing.

K... Review confirmed by purchase

80%

14.05.2026

Review for model:

Compact and full of features. The radio is quite basic but works properly, the lamp is quite bright and the SOS signal is very loud. There is even a battery level indicator.

M... Review confirmed by purchase

100%

10.05.2026

Review for model:

So far, the power bank meets my expectations and charges my phone well. Importantly, I can see that it has a substantial energy reserve – exactly what I needed. I was looking for a power bank that wouldn’t let me down, and so far I can recommend this model. We’ll see how it performs after a year or two, as I’ve only had it for a short time. It charges the Samsung S24 Ultra efficiently and after several charges of both this and another phone, only one LED has gone out. I’ve also used it as a UPS and this feature is useful. Charging the power bank at the same time as another device causes no problems.

K... Review confirmed by purchase

100%

25.04.2026

Review for model:

After a long break, I bought a power bank again and I am very satisfied. I take it to work and on trips because it is handy. It charges quickly and just as efficiently charges my Samsung. The only downside is the short cable included, so I use a longer cable which I bought separately.

P... Review confirmed by purchase

100%

11.03.2026

Review for model:

Great power bank, that's why I've already bought a second one. It's a bit heavy, but it charges devices quickly and has a long battery life. It also has an interesting design. The cable is included in the set. It's a pity that there's no charger, but you can manage without it. I recommend it.

B... Review confirmed by purchase

100%

28.02.2026

Review for model:

Great powerbank of high quality, it has safeguards, fast charging, and a wide selection of ports. The casing is very durable and tactical, and in today's times, when dependence on power is common, such equipment is a must-have.

Great power bank, the battery lasts quite a long time. It's perfect both for work and when travelling. Charging takes about 5 hours and it can charge up to 4 phones. I recommend it to all hiking enthusiasts.

K... Review confirmed by purchase

100%

27.01.2026

Review for model:

Great power bank. The capacity of 20,000 mAh is really impressive and lasts a long time. The device has a compact size, which I think is a big advantage. I definitely recommend it.

P... Review confirmed by purchase

100%

25.01.2026

Review for model:

The powerbank meets expectations – it has a large capacity and, as a result, also weight, which reflects its good quality for the price. The included cable is quite thin, but so far it works flawlessly. I like the ability to limit the current for older devices that shouldn’t be charged with high power. So far I haven’t noticed any drawbacks, although the unusual, diamond-shaped design surprised me a bit. A well-deserved 5/5.

D... Review confirmed by purchase

100%

25.01.2026

Review for model:

Very satisfied with this power bank. The 20,000 mAh capacity is more than enough and allows for several full charges. Charging is fast and reliable, and the format is still convenient to carry. Works perfectly, I am really very happy with my purchase.

R... Review confirmed by purchase

100%

23.01.2026

Review for model:

This is already my second purchase of this product after a positive experience with the first one. It has a large capacity and is well made, and I also trust this brand. I think it is worth having at least one at home, in the car or in a backpack. I sincerely recommend it.

I took it with me on trips and used it in everyday mode, and over time it gave a sense of reliability. The charge lasts for a long time, so you do not have to constantly monitor the battery level. It operates stably at work, without unpleasant surprises or interruptions. The case looks sturdy and feels confident in hand. Overall, it's a practical solution for those who want to have an energy reserve at hand and not depend on a socket at the crucial moment.

The powerbank meets the described expectations, offers an excellent price-quality ratio, and the USB-C port with PD function ensures faster charging. The appearance and colour scheme are very attractive. Although the device is quite heavy, the large capacity fully compensates for it. I definitely recommend it.

Great solution! The QuickCharge function is very useful and efficient. With a fully charged power bank, I can charge my iPhone 13 about 4-5 times. I definitely recommend it.

Very good and fast-charging power bank, but the cable often disconnects by itself when carrying it, so it's best to keep it in your hand and keep an eye on it. A downside is also the lack of a charging plug in the set.