Top critical review
Just opened the product, issues right out of the box.
May 15, 2019
The Battery appears to be a nice product "BUT" I have some concerns: Documentation. 1. On the box it states " Perfect for jump starting 4-6 Cylinder Vehicle, Amazon add states: 8L Gas & 8L Diesel. I will test it out on a 5.3 GM engine and see how that works out, if it works I will be impressed. 2. There is no on/off switch on the back as pictured, no documentation regarding charging at all. Being familiar with the charging technology I plugged my phone charger (USB Type C) into the I/O port and it charges correctly to 100%. 3. It did not start my 5.3 GM. I am returning it. Great idea in a small package, May work well for a small car and as an auxiliary battery for electronic device. The Amazon add needs to be corrected to reflect the actual capability of the product.