A portable generator used on a construction site in Alberta requires a replacement battery. The original battery is a 12V, 750 CCA (Cold Cranking Amperes) unit. The parts supplier only has 12V, 800 CCA batteries and 12V, 600 CCA batteries in stock. Which option is the most suitable replacement?

Question: A portable generator used on a construction site in Alberta requires a replacement battery. The original battery is a 12V, 750 CCA (Cold Cranking Amperes) unit. The parts supplier only has 12V, 800 CCA batteries and 12V, 600 CCA batteries in stock. Which option is the most suitable replacement?

Answer options: ✅ The 12V, 800 CCA battery, as a higher CCA rating is generally acceptable.

• The 12V, 600 CCA battery, to avoid overcharging the generator's electrical system.
• Neither, as the CCA rating must be precisely matched to the original specification.
• Two 6V, 400 CCA batteries wired in series to achieve 12V and 800 CCA.

Correct answer: The 12V, 800 CCA battery, as a higher CCA rating is generally acceptable.

Explanation: When replacing a battery, matching the voltage is critical. A higher CCA rating (within reason and physical fit) is generally acceptable and often beneficial, especially in cold climates like Alberta, as it provides more cranking power without harming the charging system. The 800 CCA battery is an upgrade.