LiPo external battery (PowerBank) 20000mAh 145W USB-A USB-C with integrated cable PB551 UGREEN
Product Code: UGREEN/55992B
Availability: 3-5 business days
Planuojama gavimo data po užsakymo: 2026-09-17
Ex Tax: 57.02€
UGREEN PB551 (55992B) is a high-capacity and powerful 20,000 mAh Power Bank for laptops, tablets, smartphones and other USB devices. Up to 145 W total output power and an integrated USB-C cable allow you to power multiple devices simultaneously, and the compact body is convenient for work, travel and everyday use.
Main advantages- 20,000 mAh / 72 Wh battery capacity.
- Up to 145 W total output power.
- Integrated 18 cm USB-C cable that can also be used as a carrying loop.
- The integrated USB-C cable supports up to 100W of output power.
- Additional USB-C port – up to 45W.
- USB-A port – up to 33W.
- Ability to charge up to 3 devices simultaneously.
- Digital display to monitor battery charge level.
- Up to 80W input power for fast charging of the Power Bank itself.
- 21700 format lithium-ion cells.
The built-in USB-C cable can deliver up to 100W, so the UGREEN PB551 can be used to power compatible USB-C laptops. This is especially practical when working on the go, in the office, on the train, or in other places where there is no power outlet.
The additional USB-C port provides up to 45 W, and USB-A provides up to 33 W. Depending on the connected devices and ports used, the total maximum output power reaches 145 W.
Integrated USB-C cableThe integrated 18 cm USB-C cable is always at hand - no need to carry a separate charging cable. The cable can also be used as a convenient carrying loop for the Power Bank. It is a practical solution for travel and everyday use.
20,000 mAh capacity and fast chargingUGREEN PB551 has a 20,000 mAh (72 Wh) lithium-ion battery. The Power Bank itself supports up to 80 W charging power, so using the appropriate USB-C charger, it can be quickly ready for the next trip or workday.
Charging low-power devicesA special Low Current Mode is designed for low-power devices, such as wireless headphones or smartwatches. It allows for more stable charging of devices that require low charging current.
Safe useThe Power Bank has protections against overvoltage, overcurrent, overcharging, overdischarging, short circuit and overheating. This helps protect both the battery itself and the connected devices.
Convenient for travelThe UGREEN PB551 has a capacity of 72 Wh, which is below the 100 Wh limit often imposed on lithium batteries carried in hand luggage on air travel. However, it is recommended to check the specific airline's rules before traveling.
Technical specifications| Parameter | Meaning |
|---|---|
| Manufacturer | UGREEN |
| Model | PB551 |
| Manufacturer code | 55992B |
| Battery type | Lithium-ion, 21700 |
| Capacity | 20,000mAh / 72Wh |
| Nominal capacity | 11,000mAh (5V/3A) |
| Integrated USB-C cable | 18 cm |
| USB-C1 / cable output | Up to 100 W, PPS 5-21 V / 5 A |
| USB-C2 output | Up to 45 W, PPS 5-11 V / 4.5 A |
| USB-A output | Up to 33 W, UFCS 5.5-11 V / 3 A |
| Total maximum output power | 145W |
| USB-C1 input | Up to 80W |
| USB-C2 input | Up to 45W |
| Number of devices charged simultaneously | Up to 3 |
| Screen | Digital |
| Dimensions | 139 × 80 × 26.7mm |
| Weight | 450 g |
| Color | Gray |
| EAN | 6941876269884 |
- USB-C for laptops.
- For smartphones and tablets.
- For wireless headphones and smartwatches.
- For travel and business trips.
- For remote work and mobile workplaces.
- For charging multiple USB devices simultaneously.
UGREEN PB551 is a universal 20,000 mAh Power Bank with 145 W output and an integrated USB-C cable, providing enough power not only for mobile devices, but also for compatible laptops.
Claim orders from Stores
You can claim your purchased items within 1 - 4 work days after making an order (if product is in local warehouse).
Please wait for an email notification regarding Your order status update.
Vilnius Store address: Vytenio g. 20, LT-03229 Vilnius, Lietuva
Kaunas Store address: Pramonės pr. 4D, LT-51329, Kaunas, Lietuva
Local delivery in Lithuania
Purchased items are delivered locally through Venipak service. Depending on availability of items, orders are processed within 1-3 work days. Orders made until 1AM are shipped the same day.
Local delivery (1-4 w.d.) price for items of any size is through through courier service is 4.90€ (incl. VAT), if the amount of the shopping cart exceeds 150€ - delivery is free.
Local delivery price to Venipak parcel terminals (1-3w.d.) is 2.90€ incl. VAT, if the amount of the shopping cart exceeds 50€ - delivery is free.
Local delivery price to Omniva parcel terminals (1-3w.d.) is 3.90€ incl. VAT,if the amount of the shopping cart exceeds 70€ - delivery is free.
Payment on delivery (COD) +2.00€ (incl. VAT).
You can pay for the goods at the time of delivery to the courier in cash or by credit card. Payment to Omniva parcel terminals is only possible by bank card.
A separate delivery fee applies to oversized items, regardless of the amounts and conditions stated above.
International delivery pricing through courier service
International shipping prices depend on geographic location:
Latvia - 5.50€ (incl. VAT)
Estonia - 6.50€ (incl. VAT)
Paid orders of more than 150€ are shipped for free to Latvia and Estonia.
other countries - negiotiated individually.
International delivery pricing to Omniva/Venipak parcel terminals
Latvia - 6.00€ (incl. VAT)
Estonia - 8.50€ (incl. VAT)
Payments:
We accept payments via PayPal for orders over 20€.

