Affordable power bank with 30,000 mAh capacity. This one offers three outputs and a display, now significantly discounted

High-capacity power banks are especially useful for multi-day trips or festivals where there is no access to the electrical grid. If you are looking for an affordable option with a large energy reserve, the current offer on Alza might interest you. The ChoeTech Digital Powerbank B730 with a capacity of 30,000 mAh is now on sale for 545 CZK (after entering code ALZADNY30), which represents a saving of more than 230 CZK compared to the regular price.

Three Outputs and LED Display

The ChoeTech B730 power bank is equipped with two USB-A ports and one USB-C, with the latter also serving as an input for charging the power bank itself. This allows you to charge up to three devices simultaneously – in which case you get a total output of 15 W. When charging individually via USB-C, you will achieve 20 W, while the USB-A ports can handle up to 22.5 W.

A practical addition is the LED display, which shows the current charge status in percentages. This way, you don’t have to guess how much power you have left. The weight of 607 grams corresponds to the given capacity – it’s not a tiny device for your pocket, but rather a reliable companion for your backpack.

What Users Say

On Alza, the power bank has a rating of 4.7 out of 5 from 278 customers, with 91% of them recommending the product. Among the most frequently mentioned positives are its large capacity, clear display, and favorable price/performance ratio. Users also appreciate the ability to charge multiple devices simultaneously.

On the other hand, reviews repeatedly mention complaints about a scratched display upon unboxing – several customers stated that their unit arrived with visible scratches. Some also point out whistling during charging, which can be disruptive in a quiet room. Nevertheless, the product’s return rate is low (2.37%), which suggests that most units function without issues.

Who the Power Bank is Suitable For

The ChoeTech B730 is a suitable choice for those who need a large energy reserve at a reasonable price and don’t mind the higher weight. With a capacity of 30,000 mAh, you can charge a typical smartphone approximately six to seven times. However, if you plan to take the power bank on an airplane, be aware that the 30,000 mAh (111 Wh) capacity exceeds the limit of some airlines – in such a case, opt for a smaller variant instead.

Would you opt for a power bank with such a large capacity?