Quality: Zinc alloy frosted metal shell, special silicone anti-skid pad at the bottom, it will not slip easily even if it is placed inside a bumpy car, built-in high-performance BMS with balanced BMS system, the greatest possible protection is charged equipment, no battery damage.Fast charge: true QC3.0/PD fast charge protocol, kill fake fast charge on the market in seconds. DC input fast charge, USB/TYPE-C input fast charge.Accessories: Deliver special fixtures and dust jackets for car emergency ignition, plus DC charging cables and high-quality 10 brand computer adapters.Model: DTP1863 battery capacity 40000mAh (high-quality polymer batteries) DTP1869 battery cell capacity 80000mAh (high-quality polymer battery)