I'm not bashing this product, but here's the result of my first testing of the product.
I bought it on line using the ADV discount code " adventure" for $129.
Received it in 4 days ( Saturday ).
Charged phone, no problem.
Ran laptop, no problem.
I took it to work Monday knowing I had an acid test waiting. We have a JLG man lift with an industrial V4 gas engine. It is cold here, about 38 DF, the machine has a drained battery, and had been sitting that way for a few weeks.
Hooked up the cables, then plugged in a fully charger Micro Start. The machine turned over no problem but would not start. On the sixth crank the positive cable solder joint melted. Afterwards the unit showed three solid lights indicating the minimum cranking charge still remained and I think also that we did not over load the Micro-start battery unit during our acid test. I'll contact the seller for warranty of course.