TESTER OPTIMATE TEST 12V LITHIUM Easy da use, connect the clamps to the battery and read the result. The OptiMate tester microprocessor circuit absorbs a minimum amount of energy from the battery itself in order to establish and display the battery status. Easy-to-use instructions are printed on the back of the tester. Result in Volts and %. Test all le : lead-acid da 12V and le LiFeP04 LiFP Lithium batteries