GKFLY 4000A Car Jump Starter – Portable 12V Power Bank & Battery Booster

The GKFLY Power Bank 4000A Jump Starter is a powerful and compact solution for jump-starting petrol engines up to 6.5L and diesel engines up to 5.0L. Equipped with a high-rate polymer lithium battery, it can provide up to 40 emergency starts and withstand over 3000 startup cycles. Lightweight at 450g, it supports quick charging and operates smoothly between -20℃ and 75℃. Multiple safety features like overcharge, over-discharge, and short circuit protection ensure reliable performance. This device is an essential, durable companion for anyone seeking peace of mind on long journeys.