Features: This essential car battery tester enables uninterrupted battery replacement, preventing vehicle systems resets by maintaining power during swaps for seamless change . Featuring advanced current detection for precise battery drain detection, it boasts a lightweight strong plastic construction for easy portability and simple tool easy operate . Ideal for frequent battery changers, owners of long parked vehicles, road trip enthusiasts, novice drives , and multi car households seeking stable diagnostics. Perfect for on the go battery changes, diagnosing parasitic drains during vehicle storage, or as a travel companion for road trips and emergencies. With general compatibility across various car models, this battery replacement tool ensures versatile performances as a must have automotive accessory. Specifications: Component : plastic Total length: about 135cm/4ft Usage current: 5A (replaceable with 10A) Working conditions: -10℃-+50℃ Error value is about: ±2% Application scope: Replacement of car battery (12V) Package Includes: 1xLeak Detection note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.