Portable Battery 3MK PowerHouse 20,000mAh

The 3MK PowerHouse Portable Battery 20,000mAh provides high-capacity mobile power for extended use of smartphones, tablets and other USB-powered devices. With a 20,000mAh nominal capacity, the power bank supports multiple full charges for most phones and offers fast charging capabilities and several output ports to charge more than one device at a time. Its compact, lightweight design is intended for travel, commuting and outdoor activities where reliable backup power is needed.

Advantages

The PowerHouse delivers a large usable capacity in a compact form factor and supports fast charging to reduce time spent tethered to a wall. Multiple output ports allow simultaneous charging of several devices, while built-in protection circuits guard against overcurrent, overvoltage and short circuits. The unit's design balances capacity and portability so it fits in a bag or backpack without adding excessive weight.

Suitable for

• Travel and long flights
• Outdoor activities such as hiking and camping
• Daily commuting and work on the go
• Power backup during events, conferences or meetings
• Charging multiple devices simultaneously

Key specifications

• Rated capacity: 20,000mAh (nominal)
• Output ports: multiple USB outputs for simultaneous device charging
• Charging technology: supports fast charging protocols for compatible devices
• Protection features: overcurrent, overvoltage, short-circuit protection
• Form factor: compact and lightweight portable battery

How to use

To use the PowerHouse, connect your device to one of the USB output ports with a compatible charging cable. The power bank will detect the connected device and deliver the appropriate charging current. Recharge the power bank itself via its input port using a suitable charger and cable; charging indicators (if present) show the current battery level. For best results, fully charge the portable battery before long trips and recharge it after extended use.

Usage recommendations

Store the battery in a cool, dry place and avoid exposing it to extreme temperatures. Use manufacturer-recommended cables and chargers, and do not disassemble the unit. Regularly charge the power bank every few months if unused to maintain battery health.