Product Overview
The Charmast Portable Charger with Built-in Cables is a compact, high-capacity power bank designed for modern users who need reliable, on-the-go charging. Featuring a 10,000mAh battery and integrated cables, it eliminates the need to carry extra cords, making it ideal for travel, daily commutes, or emergency situations. With support for multiple devices and fast USB-C charging, it delivers consistent power for smartphones, tablets, earbuds, and more. Its slim, lightweight design and airline-friendly 37Wh capacity ensure convenience without compromising safety or performance.
Key Features
- Built-in Cables: Includes integrated Lightning and Micro-USB cables, removing the need to carry additional charging wires—perfect for quick top-ups during travel or busy days.
- USB-C High-Speed Charging: Equipped with a 15W USB-C IN&OUT port that supports both rapid device charging and fast recharging of the power bank itself.
- Multi-Device Compatibility: Can simultaneously charge up to six devices using its built-in cables and external ports, supporting iPhones, Samsung phones, Google devices, iPads, Android tablets, and low-current gadgets like AirPods and speakers.
- LED Battery Display: Real-time digital display shows remaining battery percentage, so you always know how much charge is available before heading out.
- Low Current Mode: Long-press the power switch to switch from standard to low current mode, protecting battery health for sensitive devices such as wireless earbuds and smartwatches.
- Ultra-Safe Design: Built with short-circuit, overcharge, over-discharge, over-current, and temperature protection to ensure safe operation across all usage scenarios.
- Airlines Approved: With a 37Wh capacity, this portable charger complies with TSA regulations and can be carried onboard flights without restrictions.
- Slim & Lightweight Build: Smaller than most smartphones, it fits easily into pockets, bags, or pouches—ideal for slipping into jackets, backpacks, or briefcases without added bulk.
- Includes Protective Pouch: Comes with a durable storage pouch that safeguards the power bank from scratches and wear, and can also hold small accessories like cables or earphones.
Technical Specifications
- Battery Capacity: 10,000mAh (37Wh)
- Input/Output: USB-C (15W), Micro-USB input, Lightning output
- Charging Time: ~4.5 hours (with 15W+ cable and charger); ~6 hours (with 10W+ cable and charger)
- Simultaneous Devices: Up to 6 devices
- Dimensions & Weight: Slim profile; lighter than most smartphones
- Safety Certifications: Short-circuit, overcharge, over-discharge, over-current, and thermal protection
- Included Accessories: Power bank, user manual, protective pouch
Benefits & Use Cases
This portable charger is perfect for anyone who relies heavily on their devices throughout the day. Students can keep their phones, e-readers, and tablets powered during long lectures or study sessions. Professionals benefit from all-day battery life during meetings, work trips, or remote office setups. Frequent travelers will appreciate its compact size, built-in cables, and compliance with airline rules—making it a true travel essential. It’s also an excellent backup solution during family gatherings, outdoor events, or unexpected power outages. The ability to charge multiple devices at once ensures that everyone in a group stays connected without waiting for turns.
Important Notes
- Actual output may vary between 5,000mAh and 7,000mAh due to inherent power loss during conversion and transmission. Using the built-in cable helps minimize energy loss.
- For fastest recharging, use a 15W or higher charger block and compatible cable with the USB-C input.
- Always long-press the power button to activate low current mode when charging low-power devices like AirPods or Bluetooth speakers.
- The protective pouch not only extends product lifespan but doubles as practical storage for small items.
- Package includes one power bank, one user manual, and one pouch. Warranty covers 24 months of care with lifetime technical support.
3 Options Allow You to Recharge Your Way
Recharge it by Built-in Cable
No need for an extra cable; no more hassle of finding for a charging cable
Recharge it by Type-C Input
You need to use your additional cable to recharge your power bank
Recharge it by Micro Input
You need to use your additional micro cable to recharge your power bank
Fully recharged about 6-hour
Please use 10 Watts or above charger block
Fully recharged about 4.5-hour
Please use 15Watts or above cable and charger block
Fully recharged about 6-hour
*Please use 10 Watts or above cable and charger block
Does it support low current charging mode?
Definitely, it can protect the battery health of low current products. Please long press the power switch to convert the charging port from higher amperage (for phones and tablets) to lower (for AirPods, etc).
Can I charge multiple devices together?
Of course. Thanks to its multi ports and cables, it is allowed to charge 6 devices simultaneously.
Why is my power bank providing fewer charges than expected?
Power loss is inevitable for electronic products and we recommend using the built-in charging cable to reduce the loss. A fully charged Charmast CB01 10,000mAh Power Bank typically provides about 5,000mAh to 7,000mAh.
