GSM-SOURCE W209 Pro V7.0 Smart Phone Battery fast charging and activated 2in1 Tool

Features :

• Volt-ammeter function.
• Charge status notice.
• High current overload protection.
• High current load protection.
• Voltage and current dual LED display.
• Full circuit reverse function.
• Battery voltage detection.
• One-key to activate the battery.
• Battery short circuit protection.
• A number of patent protection.