High-capacity portable power bank with dual USB-A and USB-C fast charging Kalsten
Compact High-Capacity Portable Power Bank for Everyday Use
Stay powered on the go with the Kalsten portable power bank — a Compact, High-capacity external battery designed for modern devices. Built for commuters, travelers, and remote workers, this sleek power bank combines reliable fast charging, multi-device output, and rugged daily durability in a Slim, pocket-friendly package.
Key Features
- High-capacity battery: Large-capacity lithium polymer cell provides multiple charges for smartphones and top-up power for tablets and wireless earbuds.
- Multi-port charging: Dual USB-A outputs plus a USB-C port enable simultaneous charging of multiple devices — ideal for phones, headphones, smartwatches, and more.
- Fast charging support: USB-C PD and adaptive fast-charge protocols ensure quicker top-ups for compatible devices and reduce overall charging time.
- Slim, textured design: Slim rectangular profile with a textured surface for a secure grip and attractive, modern aesthetics that resist fingerprints and scratches.
- Intelligent power distribution: Built-in smart IC automatically detects connected devices and optimizes output for safe and efficient charging.
- Safety protections: Comprehensive protection suite guards against overcharge, overcurrent, short-circuit, and overheating for worry-free daily use.
- LED status indicators: Discreet LED indicators show remaining battery level and charging status at a glance.
- Wide compatibility: Compatible with major smartphone brands, tablets, Bluetooth accessories, portable speakers, and USB-powered gadgets.
Why Choose This Power Bank?
This Kalsten power bank balances power and portability: engineered to fit comfortably in pockets or backpacks while delivering reliable, multi-device charging. Whether you need a dependable travel companion or an everyday backup battery for long workdays, its combination of fast charging, multiple outputs, and smart safety features makes it a versatile choice for modern mobile life.
What’s in the Box
- Kalsten portable power bank
- USB-C charging cable
- User manual and safety information
Usage Tips
- Charge the power bank fully before first use for optimal lifespan.
- Use the USB-C port for fastest input/output when your device supports USB Power Delivery.
- Store in a cool, dry place and avoid extreme temperatures to maintain battery health.
Choose the Kalsten portable power bank for dependable, High-capacity mobile charging that keeps your devices ready whenever you are.
Free standard shipping on all orders. No minimum purchase.
- Ships to: United States
- Processing: 1–4 business days (Mon–Fri)
- Transit: 5–10 business days
- Total delivery time: 6–14 business days
- Order cut-off: 5:00 PM PST
You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.
See our full Shipping Policy.
You have 14 days from delivery to request a return.
- Email support@open.shop with your order number to start a return.
- Items must be unused, complete, and in their original packaging.
- Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
- Damaged, defective or incorrect items: we cover all return and replacement costs.
- No restocking fees.
- Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
- Refunds are issued within 7 business days of inspection.
See our full Return Policy.
Questions about your order or our products? We're happy to help.
Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands
Email: support@open.shop
Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM PST (excluding public holidays)
We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.
For quick answers, visit our FAQ page or use our Contact Form.
