In short
- For a Mercedes-Benz GLA you need the Boost Pro 8250, regardless of the engine. Even the lighter versions have a battery with a high cold cranking current (roughly 640 to 840 CCA).
- Your battery has a CCA value (the cold cranking current, listed as EN on the battery label). A jump starter itself has no CCA: the number shows up to which battery CCA it is suitable. Choose a model that covers at least the value of your battery.
- For every GLA, the Boost Pro 8250 (suitable up to 960 CCA) is the right choice. The lighter models are too light for these batteries.
- Below you'll find the right jump starter for each generation and engine variant, from the X156 (2013) to the H247, with the exact battery CCA.
What is CCA and why does it determine your choice?
CCA (Cold Cranking Amps) is the starting power your battery delivers in cold weather. The heavier the engine and the colder it gets, the more power you need. The value is listed as EN on your battery. A jump starter itself has no CCA: the number shows up to which battery CCA it is suitable, so choose a model that matches the EN value of your GLA. Want the full explanation, the standards (EN, SAE, DIN) and rules of thumb per engine type? Read what CCA actually is and why it determines your choice. Below you'll see which jump starter suits each Mercedes-Benz GLA engine variant.
