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How Long Is The Power Cord On ZeroStart Battery Heater Pads?  

Updated 11/13/2025 | Published 11/04/2025

Question:

good morning. How long is the power cord on these Zerostart pads?

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Expert Reply:

Good morning Ken!

The battery heating pads from Zerstart, such as 50W # ZE77FR, 80W # ZE87FR, and 160W # ZE27FR, all include a 30-inch grounded cord. It’s long enough to reach the edge of most hoods or generator compartments, but you can safely use an outdoor-rated extension if needed.

Are you planning to plug in through a timer or direct outlet? Most people route the cord to the grille, then use an extension cord to plug in overnight.

expert reply by:
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Andrew N
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Ken

11/13/2025

Thanks, Andrew. Perfect length. I’ll route it through the grille like you mentioned. The truck’s a 2020 Ram 2500 diesel, and I already use a block heater plug there.

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Etrailer Expert

Andrew N.

11/13/2025

@Ken Nice! You can zip-tie the Zerostart cord right alongside your block-heater cable so it’s one clean connection point. Are you using the factory cord outlet under the bumper, or did you add your own plug-in spot?
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Ken

11/13/2025

@AndrewN I added one of those magnetic plug ports through the lower bumper so I can just walk up and plug it in. works good
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Etrailer Expert

Andrew N.

11/13/2025

@Ken Oh, perfect! Let me know how everything goes!

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