A weak battery or failing starter can leave you stranded without warning. The battery provides the initial electrical power to start your car, while the starter motor physically turns the engine over. Over time, batteries lose capacity due to age, climate, or parasitic drains, and starters can fail due to worn solenoids or motor brushes. Pit Stop Pros tests your battery under load, checks the charging system, and determines whether the issue lies in the battery, starter, or alternator. If replacement is needed, we install a high-quality, correctly sized battery or starter on-site, clean and protect the terminals, and ensure your charging system is performing properly before you hit the road.