12V 100Ah Lithium Battery for Overland Caravan, Low Temp Charging Protection

Capacity: 100Ah. 1 Lithium Battery. -Expandable up to 20.48kWh with 4 in series and 4 in parallel for versatile power needs. Will this fit my car?. What do I do if I have not received my order?. What do I do if my product is faulty?.