... of 4S factory and chain service shops. The conventional discharge Battery detectorRapid speed: test time is the most important service ... 10 hours but ours justneeds 5min to test one battery.Functions and features:Measure and display the remaining energy ... and the runner; Easy operation.Technical parametersWork scope: 12V auto battery charge system, smart systemWorking rating: 200~850CCA, 200~900SAE, ...