We place a battery right into a freezer till the battery temperature is 0° F, then check to determine whether the battery will provide half of its claimed CCA ability. According to our test engineer, John Banta, “We check in this way to see if batteries are exaggerating their promises.” https://medium.com/@business.orders.online/quick-car-battery-replacement-sharjah-warrantee-تبديل-بطارية-السيارة-في-الشارقة-43bde418ddc4