# YILANS JM4 Pro 50,000mAh Power Bank, 22.5W, Built-In Cables

A 50,000mAh power bank with four built-in cables and a percentage display for charging multiple devices while traveling.

- [Original product page](https://www.ofertitastop.com/us/product/yilans-jm4-50-000mah-power-bank-1)
- [View offer](https://www.ofertitastop.com/us/visit/yilans-jm4-50-000mah-power-bank-1)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-11-02T03:03:30.755Z
- Brand: YILANS
- Model: JM4 Pro
- MPN: JM4 Pro
- SKU: ofertitastop-us-176184
- Category: Electronics > Electronics Accessories > Power > Batteries > Mobile Phone Batteries
- Source store: amazon US
- Active deal: Yes
- Price: 31.99 USD
- Previous price: 51.99 USD
- Discount: 38%
- Rating: 4.8 / 5
- Reviews: 585

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

A small backup for a single phone suits a different need than a shared power source for several devices. The YILANS JM4 Pro combines a 50,000mAh capacity with built-in cables and extra ports, so you can keep multiple devices connected without relying on one cable type. Its digital display makes the remaining charge easy to check at a glance.

## Quick overview
With 22.5W fast charging, this power bank is designed for everyday top-ups as well as travel, camping, and other times when several devices need power. Four built-in cables cover Type-C, iOS, Micro USB, and USB-A connections, while three additional ports—one USB-C and two USB-A—provide more ways to connect. The stated maximum is six devices charging at once, making the JM4 Pro a practical fit for a shared charging setup rather than a battery focused on carrying only a phone’s essentials.

The 50,000mAh capacity gives you substantial stored power for charging devices multiple times, while the LED display shows the remaining percentage. Built-in safety protections monitor for overcharging, overvoltage, overcurrent, and short circuits. Compatibility listed for the product includes iPhone 17 through iPhone 12 series, Samsung phones, Google Pixel, other Android smartphones, and iPad devices. For a mixed-device group, the combination of cable types and separate ports helps keep charging options together in one unit.

## Size & fit
The power bank measures 5.61 x 2.88 x 1.12 inches. Those dimensions help you judge how it will fit in a travel bag or your usual carry setup, especially when choosing between a high-capacity shared charger and a smaller backup intended for lighter daily needs. Its built-in cables also reduce the need to pack separate charging leads for the supported connector types.

## Everyday use
For a trip with a phone, tablet, and earbuds in the group, the built-in connections and additional ports let you arrange charging from one battery pack. At home, it can serve as a shared backup when outlets are occupied, on the go, the display gives a quick read of remaining charge before you head out. The automatic device recognition is intended to adapt charging to connected devices, while the 22.5W rating supports fast charging for compatible devices.

Customer feedback often praises charging speed, the convenience of having cables built in, and the capacity for charging more than one phone. Some buyers also describe the unit as heavy and bulky, a useful consideration when deciding how much capacity to carry. A solid pick if your priority is powering several devices from one high-capacity pack, rather than keeping your everyday carry as small as possible.

## Practical questions
**How many devices can it charge at once?** The product is rated to charge up to six devices simultaneously. It has four built-in cables and three additional ports, allowing compatible devices to connect through different cable types.

**Which cable connections are built in?** The integrated cables are Type-C, iOS, Micro USB, and USB-A. The power bank also has one USB-C port and two USB-A ports for additional connections.

**How can I check how much charge remains?** The digital LED display shows the remaining battery percentage, so you can check the power bank’s charge while planning your next use.

## Final verdict
Choose the YILANS JM4 Pro when high capacity, built-in cable convenience, and multi-device charging matter more than a minimal carry setup. Its 50,000mAh battery, six-device charging capability, varied connections, and percentage display make it well suited to travel, group use, and keeping several compatible devices powered from one portable charger.

## Images

![YILANS JM4 Pro 50,000mAh Power Bank, 22.5W, Built-In Cables — 1](https://www.ofertitastop.com/i/-2WzgERMQ4NURBdaQ7BLZxxa3_xO92-3v9jq5-3lHknE34t513pNNrrlWJOIzyju8MPJaR_tRmnEwBiNKr0rtsjkpcV8_X9NG-FwIzYP2-BRYjszzYudQf1Rtg.jpg)

![YILANS JM4 Pro 50,000mAh Power Bank, 22.5W, Built-In Cables — 2](https://www.ofertitastop.com/i/6zrDLZvujYrGrkSVdQRKHaEI3BnjwlmDOcFR_QJ0az0cw2p2mgtabAqHwUX15zx7uWdwgkbOImjITXHnx2ii6SQ7Buad_N2xm0SmZo8e4VAGDAIQAqrJIn5BUA.jpg)

![YILANS JM4 Pro 50,000mAh Power Bank, 22.5W, Built-In Cables — 3](https://www.ofertitastop.com/i/wad-8w33SCurnZqEeBN3progovmGX33uLZh7JIa83bt3wTRLfmeuSiN3t2eiGLoh8FvJwiXTgGZ6_HCDOvGyySCqevaEsuE-FEKKK-6AfU_WADQOknOcpZWwzQ.jpg)

![YILANS JM4 Pro 50,000mAh Power Bank, 22.5W, Built-In Cables — 4](https://www.ofertitastop.com/i/nCnkqEWAteRl8lbxlPVdG37DEIvMiz8uEMxmewW71BJgZYpLfEFfLAi18d4PdQr6CPZf6E8pE_NA1bF8yEL39qokhCWMccpIgupp0wSAclmFmqVNaf_lATyRgw.jpg)

![YILANS JM4 Pro 50,000mAh Power Bank, 22.5W, Built-In Cables — 5](https://www.ofertitastop.com/i/T43IcSchoaKKHGWeLX1r0n4D8JifW1i8yJqeHNVGRXaaQi7fKbIpodsOpzPyjVvF2nfjdslL3l_OmEwWvNvQes38-VR9G-WZ2SSQ7f17QZhjmf3k4WbmSlHfwA.jpg)