[Deal] car dual usb charging voltmeter current voltage meter thermometer p42208666

Original Price: US$ 13.04 Current Price: US$ 6.39 (Saving 49 OFF) Description: Car Dual USB charging voltmeter current voltage meter thermometer. As more and more rich automotive products , the installation of speakers , the installation of the refrigerator , car cleaning, car inflatable , automotive lighting , outdoor picnic electricity. Friends modified motorcycle horn , headlight change , add speakers, electric warm gloves. People always worry about electricity , while the battery will not lose power, the car will not start .Now we do not have time to worry about, there is a voltage meter you can always significant number of fluctuations in the voltage of your car . So you have no worries , enjoy the play . Car powered not start, is the battery voltage , the normal value is 12.2-12.8 , lower than 11.6 should pay attention off the car as soon as possible and immediately start the engine electrical charge , the value is less than 10V may be unable to start. After the car started , the generator voltage, the normal value is 13.4-14.8 , lower than 13.4 will not be able to charge the battery , check the belt and the vehicle electrical generator is not normal load , higher than the 14.8 that is generating excessive damage and car battery on appliances, check the generator regulator.