Nowadays, 99 yuan mobile power supply products are at a fierce level in the formal industry, and most consumers are basically aiming at this level to purchase mobile power. Earlier, some large-capacity mobile power supply has been put into 99 yuan file, but unfortunately they are basically equipped with 18650 cores. Large size + overweight + high price often makes many consumers give up the desire to buy large-capacity mobile power supply. However, the mobile power supply we are evaluating today has a power supply of 20,000 milliamperes, built-in polymer cores, smaller size and weight than the same power supply, and only sells for 99 yuan. It is the product.