UGREEN Nexode PB552 55995B 25000mAh 165W Power Bank
Overview
UGREEN 55995B / PB552 is a 25,000mAh power bank rated at 90Wh. It has two built-in USB-C cables, one additional USB-C port and one USB-A port. The main built-in cable can provide up to 140W alone; the second built-in cable and additional USB-C path can each reach up to 65W; USB-A reaches up to 33W on a compatible UFCS profile. The headline 165W mode is specifically the two built-in cables at 100W + 65W. With all four outputs occupied, the India listing documents 65W + 65W + 10W + 10W = 150W total.
What it does well.
Key features
Two built-in C cables.
90Wh energy rating.
Low-current mode.
Port map and connector roles
Built-in USB-C1 cable.
Built-in USB-C2 cable.
USB-C receptacle.
USB-A receptacle.
Port labels matter: Use the main built-in C1 cable for a single high-power laptop. Use both built-in cables for the 100W + 65W / 165W mode.
Charging protocols and speed logic
The main USB-C1 path supports USB PD 3.1 including 28V/5A and PPS 5–21V/5A. The secondary built-in cable and USB-C port support up to 65W with their own PPS ranges. Official UGREEN material lists PD 3.1, PPS, UFCS, SCP and QC families. USB-A can reach 33W only on a compatible UFCS session; many devices will use 22.5W or lower fixed modes. The charger and device always negotiate the actual profile.
140W requirement.
UFCS is device-specific.
Input is separate from output.
Compatible devices and systems
USB-C laptops.
Phones and tablets.
Handhelds and accessories.
Low-current devices.
Compatibility rule: Check USB-C charging support and voltage—not only wattage. A proprietary-input laptop or unsupported 28V device cannot use the 140W mode.
Use scenarios
Two-laptop meeting.
Four-device travel day.
Single high-power laptop.
Earbuds or smartwatch.
Setup and usability guidance
Setup principle: Select the correct input or output path and verify the display before packing the unit away.
- Fully charge the power bank before first use with a suitable USB-C PD charger and a supported input path.
- For the fastest supported recharge, use a reliable high-power USB-C PD source and a cable rated for the requested current; a wall charger is not built into the product.
- Choose the main 140W-capable built-in USB-C cable for a compatible high-power laptop, or use the second built-in cable and receptacles according to the sharing table.
- Press the button if a connected device does not wake the output; hold it for about three seconds to enter or leave low-current mode for small accessories.
- Check the display and disconnect devices before packing the power bank away.
- Low-current mode automatically exits after about 3.5 hours or can be cancelled with another roughly three-second button hold, according to the manual.
Everyday usability and care
LED remaining-charge display.
Cable storage.
Low-current timer.
Weight awareness.
Do not pack the unit while hot. Inspect the housing, display, ports and both built-in cables after any drop, and retire the battery immediately if it swells, leaks or smells unusual.
What this product does
- Stores 90Wh of energy and provides portable USB charging for compatible laptops, tablets, phones and accessories.
- Offers two built-in USB-C leads plus one USB-C receptacle and one USB-A receptacle for up to four connected devices.
- Displays remaining charge and supports a low-current mode for small accessories.
- Negotiates supported PD, PPS, UFCS, QC, SCP and related charging modes within each path’s limits.
- Stores energy for portable charging and provides a low-current accessory mode.
What this product does not do
- It is not a wall charger, AC inverter, UPS or guaranteed seamless pass-through power supply.
- It does not provide 165W from one connection; its strongest single-output mode is up to 140W.
- It cannot make an unsupported laptop accept USB-C charging or override a device’s input ceiling.
- It is not waterproof and its built-in cables are not described as user-replaceable.
- It does not function as a guaranteed seamless UPS and it does not contain an AC wall outlet.
What to do
- Use low-current mode for earbuds, watches or trackers that may otherwise fall below the automatic-detection threshold.
- Keep the battery cool, dry and visible while charging or recharging.
- Protect both built-in cable ends from crushing, dirt and sharp sideways loads.
- Carry the 90Wh battery in cabin baggage only and verify the current airline and route rules before travel.
- Store it partly charged in a cool, dry place during long periods of non-use and inspect it before reuse.
- Confirm current airline cabin-baggage rules before every flight, even though the battery is marked 90Wh.
What not to do
- Do not put a power bank in checked baggage, expose it to fire, high heat, direct sun in a parked car or freezing conditions.
- Do not use or recharge a swollen, leaking, punctured, crushed, dropped or unusually hot battery.
- Do not recharge through two input paths at the same time.
- Do not swing, carry or suspend the unit by a built-in cable.
- Do not disassemble, short the ports or allow metal objects to bridge the connectors.
- Do not place it in checked baggage or operate it inside a sealed, heat-trapping bag.
Warnings and limitations
Stop-use trigger: Stop immediately for swelling, leakage, smoke, burning smell, deformation or abnormal heat.
- Airline acceptance is controlled by the carrier and route; 90Wh being below the common 100Wh threshold is not a universal boarding guarantee.
- Usable delivered capacity is lower than the 25,000mAh cell rating because voltage conversion and charging losses are unavoidable.
- High-power charging and recharging create heat. Stop immediately for swelling, smell, smoke, leakage or abnormal temperature.
- Multi-output figures depend on the connection combination; the four-output total is lower than the headline dual-cable 165W mode.
- A high-power laptop may drain the power bank quickly even when charging works correctly.
- The 25,000mAh figure is the internal cell capacity; usable output capacity is lower after voltage conversion and normal losses.
Troubleshooting
Laptop will not reach 140W.
Small accessory stops charging.
Power bank recharges slowly.
All-four total is below 165W.
Useful diagnostic: For a power complaint, test the main built-in cable and one compatible device alone, then the two built-in cables together. This isolates the 140W single and 165W dual headline modes from four-output sharing.
At a glance.
- Main built-in C1 alone
- Up to 140W with compatible 28V PD 3.1 hardware.
- Built-in C2 alone
- Up to 65W.
- USB-C receptacle alone
- Up to 65W.
- USB-A alone
- Up to 33W on compatible UFCS; up to 22.5W on common listed fixed profiles.
- Two built-in USB-C cables
- 100W + 65W = 165W total.
- All four outputs
- 65W + 65W + 10W + 10W = 150W total according to the current India listing.
- Recharging input
- Up to 90W through the main USB-C1 cable; secondary built-in C2 / USB-C port supports up to 65W input. Do not use two input paths simultaneously.
- In the box
- Match SKU 55995B / model PB552 and EAN 6941876269914.
Confirm 90Wh is acceptable under the intended airline and route rules.
Use the main built-in cable for any intended 140W session.
Remember that all-four mode is 150W, while 165W is the two-cable mode.
Provide a suitable USB-C PD wall charger for fast recharging.
India listing states 1 × PB552 / 55995B power bank with its two integrated USB-C cables, 1 × charging cable and instructions. The cable length/rating is not specified on the India page, and a wall charger is not listed.