Feature: 1. High Quality Material: Inverter battery box is made of high quality ABS material, high strength, wear resistant, sturdy and durable. 2. Multifunction: Battery box with low and high voltage protection, over temperature protection, short circuit protection, overload protection, reverse polarity protection. 3. Excellent Performance: Built for rugged environments with an impact resistance, and unaffected by acid, gas, oil, as well as, UV exposure. 4. Portable: Trolling motor battery box contains handle, easy to carry, practical and convenient to use, bring you a good experience. 5. Widely Use: Battery box can be used for camera, camcorder, speaker, GPS, shaver, power bank, mobile phone, tablet, fan, psp, notebook, etc. Specification: Item Type: Battery Box Material: ABSCircuit Topology: Full BridgeOutput Voltage Waveform: Sine WaveInput Voltage Range: 12V Output Voltage: 220V Rated Output Power: 500W Inverter Efficiency: 80% Voltage Adjustment Rate: 90% Output Frequency: 50-60 (HZ) Built In Accessories:Digital Display Voltmeter Switch 100 A Usb Interface (QC3.0x2) 12V Cigarette Lighter Socketx2 High Current Terminal +- Interface (50Ax2) Repair Sine Wave Inverter 500WFunction: Low voltage protection, over temperature protection, high voltage protection, short circuit protection, overload protection, reverse polarity protection. Package List: 1 x Battery Box1 x Bandage2 x Clip4 x Screw4 x Nut