Big-Capacity Polymer Power Bank for Tablets
Education trolley fleets and travel buyers share a problem: tablets drain chargers fast. This shell is sized for the reality — big-capacity li-polymer cells with a stable output that keeps a tablet happy through the long flight or the full class period, and still tops the phone on arrival.
Key Features
- Tablet-class duty — big-capacity cells for the devices that drain everything else
- Classroom-and-luggage shell — sturdy ABS body for trolleys, backpacks and overhead bins
- Stable output for big devices — no brown-out dropoffs on tablets
- Travel-adapter friendly — wide input range suits worldwide charging
- Specs adjustable per order — capacity and port spec per order
Specifications — Typical Configuration (customizable per order)
- Capacity: 20,000mAh (10,000–30,000 on request)
- Output: dual USB-A (5V/2.1A + 5V/1A) · Input: 5V/2A USB-C
- Battery: grade-A polymer, 500+ cycles
- Certification: CE / RoHS / FCC
Final configuration confirmed with you before order confirmation.
Customization & Ordering
- Logo printing; fleet quantities for education programs
- Sample in 5–7 days; MOQ on request
- FOB Shenzhen · DHL / FedEx / sea freight
















Janet –
One thing I like about this portable external battery charger is its so slim and sleek. It fits in my sweat pants pocket. I used it today with my iPhone and it is indeed 90% accurate. It is cool because its capacity considering its size is kind of amazing.
steven –
Great quality for the price
Great charger for a grand price. I can get two full charges if I use the phone a lot while charging and 3 If I don’t use it while charging. Its very easy to use.