I feel misled by this ad as it seemed to claim it was a car charger but when it arrived it said it was for a ranch or farm equipment. The clamps are too small to charge a car battery. This is obviously for charging batteries on smaller devices. Unfortunately I don't have a ranch or farming equipment to test this. It's made of durable hard plastic and is small enough to carry around. It is light but not suitable for our purpose. The wrong manual annoys me, but you can use it on your hardware.