OBD memory saver

ADVANCED OBD MEMORY SAVER WITH INTEGRATED BATTER Model: OBD MSV-B Operating voltage: 9.0 VDC ~ 15.0 VDC (max) Volt display resolution: 0.1 VDC Amps draw detection: Over 4.0 Amps will be depicted as 0.0 Amp (Power output will cut off) Amp display resolution:0.1 Amp Internal power source: Re-chargeable 12 VDC Li-Ion battery (2000 mAh) Optional power source: External 12V car battery OBDII connector cable: 0.6 M*(Feature 2) External battery cable: 1.1 M*(Feature 3) Li-Ion charger: Input: AC 100 V ~ 240 V, 50/60 Hz Output: DC 12.6 V, 1.0 Amp Safety: Reverse polarity protected