USER’S MANUALAUTO BATTERY TESTER2Safety precautionsBatteries usually contain toxic and corrosive chemicals, pleasekindly avoid battery overcharge, short circuit, leakage and so on.Before using this product, please learn and comply with the usingrules of the batteries.•When working with batteries, you need to have plenty ofventilation, remove your jewelry, wear protective eyewear (safetyglasses) and clothing,and exercise caution.•During testing on the battery while it is still in the car, make surethe engine is OFF. Do not near to the engine running and heatingparts.•Before the test, please use the wire brush and alkaline cleanerclean battery pole column, as well as grease and dust have erroron test results.•Please don't store the machine in hig h temperature or humidityplace. It'll damage the machine.•This machine is for 12V battery only.