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Black rectangular power bank with four built-in cables and multiple ports

YILANS JM4 Pro 50000mAh 22.5W Power Bank

SKU CH-7C8E-G254Q MPN JM4

A 50000mAh portable charger with built-in cables and 22.5W output powers up to six devices at once

  • ColorBlack
  • Compatible Phone ManufactureriPhone 17, 17 Plus, 17 Pro, 17 Pro Max, iPhone 16, 16 Plus,
  • Compatible Phone ModeliPhone 17, 17 Plus, 17 Pro, 17 Pro Max, iPhone 16, 16 Plus,
  • Volt5 volts
  • OutputUSB-C*1+USB-A*2
  • InputUSB-C*1+USB-A*2
  • 50000mAh capacity keeps devices running for days
  • 5W fast charging reaches 65% in 30 minutes
  • Four built-in cables eliminate tangled wires
  • Six outputs charge multiple devices at once
  • Compact 5.61 x 2.88 x 1.12 in design weighs 1.11 lb

50000mAh Power Bank with Built-In Cables

The YILANS JM4 Pro is a 50000mAh portable charger designed for users who need extended power for phones, tablets and earbuds while away from wall outlets. Its integrated Type-C, iOS, Micro-USB and USB-A cables remove the need to carry separate leads. The unit suits travellers, campers and daily commuters who want one device that can recharge multiple gadgets over several days.

Six Outputs and Two Inputs for Multi-Device Charging

Four built-in cables plus one USB-C port and two USB-A ports provide six simultaneous outputs, while USB-C and USB-A inputs allow the bank itself to be recharged from different sources. This layout frees up bag space otherwise occupied by multiple chargers and cables. It is not suited for users who require laptop-power delivery or wireless charging pads.

22.5W Fast Charging with Safety Monitoring

The bank delivers up to 22.5W through QC 3.0/4.0 protocols, enabling an iPhone 17 to reach 65 percent in 30 minutes. An internal protection chip monitors overcharge, overvoltage, overcurrent and short-circuit risk, cutting power within milliseconds when a fault is detected. The 1.11 lb unit operates at 5 volts without audible fan noise.

Highlights

  • 50000mAh capacity keeps devices running for days
  • 5W fast charging reaches 65% in 30 minutes
  • Four built-in cables eliminate tangled wires
  • Six outputs charge multiple devices at once
  • Compact 5.61 x 2.88 x 1.12 in design weighs 1.11 lb

Specifications

BrandYILANS
ModelJM4 Pro
ColorBlack
Part NumberJM4 Pro
Compatible Phone ManufactureriPhone 17, 17 Plus, 17 Pro, 17 Pro Max, iPhone 16, 16 Plus, 16 Pro, 16 Pro Max, iPhone 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus
Compatible Phone ModeliPhone 17, 17 Plus, 17 Pro, 17 Pro Max, iPhone 16, 16 Plus, 16 Pro, 16 Pro Max, iPhone 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus
Volt5 volts
OutputUSB-C*1+USB-A*2
InputUSB-C*1+USB-A*2
Dimension5.61 in x 2.88 in x 1.12 in
Weight1.11 lb

Questions about this item

How many full phone charges can the 50000mAh capacity actually deliver before the power bank itself needs recharging?

The 50000mAh cell can recharge a typical smartphone several times over, though the exact count depends on the phone's own battery size and the efficiency loss during transfer.

Does the 22.5W output generate noticeable heat or fan noise when charging multiple devices for hours?

The unit has no fan; it relies on passive cooling, so it runs silently and warm rather than hot during extended multi-device sessions.

Which cables or adapters must I already own to recharge the power bank itself via its USB-C or USB-A inputs?

You need a standard USB-C cable and a compatible wall charger for the USB-C input, or a USB-A to USB-C cable and charger for the USB-A input.

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