Yeeco Battery Meter, Blue LCD Battery Capacity Monitor Digital Battery Tester, 12V 24V 36V 48V Lead Acid Battery Status DC 8-63V Lithium ion Battery Electric Quantity Detector Automotive Yeeco Battery Capacity Monitor,Wide operating voltage range: DC 8-63V Our car battery tester with LCD display, can clearly see the battery electric quantity, convenient to use; please note the monitor can not be exposed to sunlight for the long time The battery capacity reader applicable battery: suitable for the 3-15 series Lithium battery and 12-48V Lead-acid battery, Ternary lithium battery, Polymer lithium-ion battery, Lithium ion battery, Storage battery, Water battery, etc This functional battery detector,the red line is connected with the battery positive and black line is connected with the battery negative. and pay attention to the plug direction, the interface of the monitor Battery Capacity Tester widely application: various instruments and metersportable devicemobile powermedical equipmentelectrombile etc