4smarts 540699 powerbank, 10000 mAh

The 4smarts 540699 power bank provides 10000 mAh capacity in a compact grey housing and delivers up to 30 W total output power for charging mobile phones and tablets on the go. Designed to be lightweight and pocket-friendly at 0.181 kg, this portable battery supports simultaneous connection of up to 2 devices and is compatible with common smartphone charging needs. Its balanced capacity and output make it suitable for daily commuting, travel, and situations where access to mains power is limited.

Advantages

The power bank combines a 10000 mAh battery with a 30 W total output to offer a mix of capacity and reasonably fast charging for modern mobile devices. Its compact grey design and low weight make it easy to carry in a bag or pocket. Support for two devices at the same time adds flexibility for charging a phone and a second device such as a pair of wireless headphones or a tablet. The unit is positioned for compatibility with mobile phones and other USB-chargeable devices, providing a practical external power source without unnecessary bulk.

Suitable for

• Recharging smartphones during daily commute or workdays
• Powering a tablet or second device while traveling
• Backup power for short trips, meetings, or outings
• Charging two small devices simultaneously (phone + accessory)

Key specifications

• Battery capacity: 10000 mAh
• Total output power: 30 W
• Maximum simultaneously connected devices: 2
• Product colour: Grey
• Weight: 0.181 kg
• Compatibility: Mobile phones and similar USB-chargeable devices

How to use

Connect your device to the power bank using a suitable USB cable and ensure the connectors are fully seated. Use the available output ports to charge up to two devices at once, observing the device's charging indicators. Recharge the power bank from a USB power source when its internal battery is depleted; follow the manufacturer's instructions for charging times and the appropriate cable type. Store the unit in a dry environment and avoid exposing it to extreme temperatures to preserve battery health.

Recommendations

For best performance, use quality USB cables and charge the power bank from a compatible 30 W (or higher) USB power adapter to reduce recharge time. Avoid deep discharges and store the power bank partially charged if not used for extended periods. Keep the device away from direct heat sources and moisture.