Battery tester suitable for measuring batteries in electric bicycles, motorcycles, and automobiles. High-quality cables long-lasting durability and resistance to high currents. BT-54B Battery Tester Model: BT-54B Power: 500W Current: 40A Rated Capacity: 10-120AH Battery Voltage: 12V Application: 12V batteries Test Time: 3-5s Display: Analog Dimensions: 200 x 110 x 40mm Weight: 0.75kg Note: Do not connect a 12V tester in series with a 24V circuit to avoid burning the tester. 1:BT-54B (pointer) 2: BT-54 (digital display) Hign-concerned Chemical: None : Electrical Decoration and construction content:Installation project Color: As Shown Material: Stainless Steel Package Contents: 1 set * battery testers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.