Key features

• •✤ 12 BATTERY COMPATIBLE- Conveniently and accurately check the charge of the 12V battery in your car, motorcycle.
• •✤ EXTRA LARGE CLAMPS- Our clamps are sturdier and larger-sized than the competition, providing a more secure fit on a wider range of terminals. Bigger is better!
• •✤ 6-Inch LED DISPLAY- A crystal clear and easy-to-read LED status indicator lets you know exactly the state of charge for your battery or alternator - no more fussy gauges or fuzzy digital displays.
• •✤ BATTERY CHECK, ALTERNATOR CHECK, EXTERNAL CHARGE CHECK- battery check indicates whether your battery's in working condition; alternator check indicates the state of your alternator based on its measured voltage; external charge check indicates your battery's charge when using an external power source.
• •✤ LIGHTWEIGHT & PORTABLE DESIGN- Sporting compact dimensions and a lightweight design, this battery and alternator checker is perfectly portable and fits neatly inside of pockets.
• •FAttach the cable clip of the red cable to the plus point (+) of the battery and the cable clip of the black cable to the minus point (-) of the battery.
• •Connect the testing device. Start the engine and switch off the headlights, radio etc. start the engine again and switch on the headlights, radio etc.
• •In both cases, then green signal lamp"GOOD" must shine.
• •The red signal lamp "DEFECTIVE" will start to shine if the dynamo supplies no or very little voltage.
• •Please check that the tester is connected correctly. Otherwise contact the car workshop.
• •Switch on the headlights for 1-2 minutes, then switch off again. Remove the cable clips from the battery, wait approx. 10 minutes and then switch the testing device on again.
• •A signal lamp will shine according to the charging status of the battery indicating "FULL", "HALF-FULL" or "VERY LOW CHARGE".
• •The battery needs to be charged up to the maximum.
• •Remove the connection of the ignition coil and then connect the testing device.
• •Try to start the vehicle using the key in the ignition switch. The engine cannot start (interrupted ignition).
• •When the green signal lamp "BATTERY OK" starts to shine, the charging status of the battery is OK.
• •Swith on the loading test, and can start the engine , FULL: six-five LED will be shine , MID: four-three LED will be shine ,Low: two -one LED will be shine , if no LED shine ,it means the battery capacity is very low,please charging the battery or change the battery .