12V8AH battery can start 4500cc car more than 10 times .........sure??? Taking advantage of our Spiral Wound battery' s great starting current, we have newly developed a product-- mini supper power Jump starter. Inside Battery type: spiral wound battery 12V4AH--suitable for starting cars with engine below 2000cc 12V8AH-- suitable for starting cars with engine above 2000cc-4000cc Size: 250(L)*150(W)*230(H) mm Weight: 3.2 & 4.5kgs respectively Function: power starting, USB DC output, LED light, 80 W inverter (for choice) Flexible desigen according customer demand Advantages over the conventional jump starter: 1. Excellent CA & CCA: 12V4AH CA: 80A CCA: 60A Starting Current 460A Peak Current 950A 12V8AH CA:140A CCA: 120A Starting Current 900A Peak Current 1850A 2. 12V4AH can replace normal 12V12AH-12V18AH SLA battery 12V8AH can replace normal 12V18AH-12V28AH SLA battery 3. It can perform well in low -40℃ temperature environment Hoping the items above mentioned will be of interest of you. It will be a great pleasure to receive your inquires for any items, against which we will send you our lowest quotations. Sincerely hope that we can start business and build up a long term business relationship with you accordingly.