# charmast C2046S 20,000mAh Portable Charger with Built-In Cables and 22.5W Output

Charge up to three devices with the charmast C2046S, a 20,000mAh power bank with built-in cables and a digital battery display.

- [Original product page](https://www.ofertitastop.com/us/product/charmast-c2046s-20-000mah-portable-charger)
- [View offer](https://www.ofertitastop.com/us/visit/charmast-c2046s-20-000mah-portable-charger)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-11-02T03:03:12.077Z
- Brand: charmast
- Model: C2046S
- MPN: C2046S
- SKU: ofertitastop-us-166559
- Category: Electronics > Electronics Accessories > Power > Power Adapters & Chargers
- Source store: amazon US
- Active deal: Yes
- Price: 29.98 USD
- Previous price: 45.99 USD
- Discount: 35%
- Rating: 4.3 / 5
- Reviews: 284

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

## Description

At 5.91 × 2.83 × 1.09 inches, the charmast C2046S combines a 20,000mAh rechargeable battery with built-in charging cables and a foldable AC wall plug. Its digital display shows the remaining charge from 0% to 100%, making it easier to plan a recharge before a day out or a trip.

The built-in connections let you charge compatible devices without packing a separate cable for each one. Use the iPhone cable, the 2-in-1 USB-C/Micro-USB cable, or the USB-A output to power up to three devices at once.

## Product specs
- Model: C2046S
- Capacity: 20,000mAh
- Maximum output: 22.5W when charging one compatible device
- Multi-device output: Up to 15W total when charging multiple devices
- Display: Digital battery-level readout
- Recharge options: Foldable AC plug or USB-C input
- Included components: Power bank, travel pouch, and user manual

## Practical tips
For a single compatible device, the charger supports output up to 22.5W. When several devices are connected, output is shared up to 15W total, so you can keep multiple phones or other compatible devices powered from one pack. That setup is useful when traveling with family or sharing a charging spot during a long workday. Need to recharge the power bank itself? Plug it into a wall outlet using the built-in AC plug, or use the USB-C input with a compatible 9V/2A charger. The USB-C port is for recharging the power bank, while the built-in cables and USB-A port provide device charging.

For travel days, the 77Wh rating and carry-on-ready design make it a convenient backup to pack with your essentials. When using the built-in AC plug, insert it into a firm, upright wall outlet, then fold away the plug and cables after use. Keep the unit uncovered and ventilated while charging. Pass-through charging is available when recharging through the AC plug.

Customer feedback often highlights the built-in cables, travel convenience, and battery capacity as useful for keeping devices charged away from home. Opinions on charging speed, reliability, and durability are mixed, and some customers find the unit bulky or heavy. The display and integrated connections offer a straightforward way to check battery level and reduce the number of separate charging accessories to carry.

## Included in the package
The package includes one 20,000mAh power bank, one travel pouch, and one user manual. The built-in cables and foldable AC plug are part of the charger’s all-in-one design, giving you charging options for compatible phones and other devices on the move.

## Should you buy it?
Choose the C2046S if you want a high-capacity backup charger with cables and a wall plug built into the same unit. Its digital battery display, three-device charging option, and two ways to recharge the pack suit travel, commutes, and busy days when access to an outlet may vary. It’s a solid pick if reducing loose cables in your bag matters as much as having a clear readout of the remaining charge.

## Images

![charmast C2046S 20,000mAh Portable Charger with Built-In Cables and 22.5W Output — 1](https://www.ofertitastop.com/i/pmst1W-IS0wgbOzqZ13N5eXDS9xRmazbh3x2lemdEbS9Tnvq4Xr7AUpG9olsAWZyllWJrQsY4b1zxW32JL1DThq-zONwJvO7YTFvKdvNrpg1-Ndnxp1xOhyj-Q.jpg)

![charmast C2046S 20,000mAh Portable Charger with Built-In Cables and 22.5W Output — 2](https://www.ofertitastop.com/i/nJO4Ru4RWY0KSst3mb0BHF-_Ty7qpmWLWpUFLtjZBAAxYCtLrQpIFbbPYmrujMVvM8lPH2hGZe72QFR_kultrN5_P1KWWVLZDsuuJfWn-Ob0tw6XY2I7RVnEWA.jpg)

![charmast C2046S 20,000mAh Portable Charger with Built-In Cables and 22.5W Output — 3](https://www.ofertitastop.com/i/XHuf_8PHQMiG-KC0NZKTM28Y15iISnQTAzT3_i2Wj_AOcesVxXW8wUV0opE0dZJzkxm2djbwB7uPaZyG85LbEz890JnRfrCAO0U1JkMz-m3dOqzNnkXDz31t8g.jpg)

![charmast C2046S 20,000mAh Portable Charger with Built-In Cables and 22.5W Output — 4](https://www.ofertitastop.com/i/dhJt9dklvVoqB63fOB4PpFFq4__RmsM7Yo36KZ7Y7YsltF0t9JRJGvtFcTwcD1vAyOoTWzav5oSoaKqlgpC0RU_MMP6bQzXGGRgO8sFBqFmKm8uMkTyzSJebdg.jpg)

![charmast C2046S 20,000mAh Portable Charger with Built-In Cables and 22.5W Output — 5](https://www.ofertitastop.com/i/4nhLUzy7U9zjPGXnagfyhitDInwEdui-4f3QiNsk8d38SIRmReIimq6RyinRF8-rcwsf0SWFA_6AJOPkR_IbmsFLwT6hdqlprBb9YyoWPjfMsFHJdkpxG0yyag.jpg)