Big-engine and diesel owners want the Boost HD GB70. Its 2000A reliably cranks 8.0L gas and 6.0L diesel motors, the 40-jump reserve means you can go months without thinking about it, and the rugged cables shrug off shop and trail abuse. Weight, bulk and a dated micro-USB charging port are the costs.
- — Up to 40 jumps per charge so it rarely needs a top-up in the trunk
- — Over-engineered 8AWG clamp cables built for repeated heavy-duty outdoor use
- — Smart sensing delivers only the current the connected battery needs, protecting electronics
- — Overkill for someone who only jumps a four-cylinder commuter car