Tagital Portable Mini Slim 20000mAh Car Jump Starter Engine Battery Power Bank

I was somewhat skeptical this product would perform as advertised but I was very pleased when I actually used it. It immediately started two of my motorcycles which had dead batteries from non-use this winter, with plenty of charge to spare for other jump starts. I then charged two smart phones from no charge status and it still had enough charge afterwards to start the bikes again. Recharging it from nearly complete discharge only took about two hours. The built-in light is extremely handy and powerful. The strobe light function blinks in Morse code simulation of "SOS". Packaging is compact and easy to put in a glove compartment in a car or travel bag on a motorcycle. Only the written instructions and warranties are somewhat garbled in translation. However diagrams accompany the instructions so it is very simple. Hope the warranties don't need to be used. Only time will tell if this product will also be reliable but for now, it is one of the best bargains ever.