Ford Puma Battery: Specs, Fitment & Common Faults

A stop-start system that keeps disabling itself usually isn't a dying battery — here's the reset procedure Puma owners report actually works.

Illustration for editorial purposes

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OEM Part Number: Type 027

Accuracy note: The Puma (2019 on) 1.0 EcoBoost mHEV is listed by retailers with a 242 mm type 027 EFB (60–65Ah) or 096 EFB, and Ford's mild-hybrid guidance points to AGM on some builds — so this is a car where the label on the fitted battery settles it. Check the three-digit type code, Ah and CCA printed on the battery you are removing before ordering — this model was built in more than one size. Stop-start cars must have an EFB or AGM battery, never a standard one. The Puma Gen-E (electric) has a small 12V auxiliary battery only.

1.0 EcoBoost mHEV 125 / 155	Type 027 EFB (60–65Ah / 600–650A, Varta N60 / D54, Bosch S4E 070) — some cars 096 EFB or AGM; confirm against the fitted battery. Aftermarket: Yuasa YBX7027 EFB (65Ah / 600A) or YBX9027 AGM (60Ah / 640A); Varta N60 EFB / A8 AGM; Bosch S4E 051 / S5A 050
1.0 EcoBoost 125 without mild hybrid (early cars)	Type 027 EFB (60Ah / 640A). Aftermarket: Yuasa YBX7027 EFB (65Ah / 600A) or YBX9027 AGM (60Ah / 640A); Varta N60 EFB / A8 AGM; Bosch S4E 051 / S5A 050
Puma ST 1.5 EcoBoost	Type 096 EFB (70Ah / 760A) — confirm via VIN. Aftermarket: Yuasa YBX7096 EFB (75Ah / 700A) or YBX9096 AGM (70Ah / 760A); Varta N70 EFB / A7 AGM; Bosch S4E 081 / S5A 080
Puma Gen-E (electric)	12V auxiliary battery only — confirm via VIN

Stop-Start Disabling Itself Usually Isn't a Battery Failure — Here's the Fix Puma Owners Report

A genuinely common source of confusion across Ford's stop-start range: the system frequently disables itself and displays a warning about charging or cold conditions, and many owners assume this means the battery has failed and needs replacing. In most cases it hasn't — Ford's Battery Management System deliberately disables stop-start when it judges the battery isn't in a strong enough state to reliably restart the engine, which is the system protecting itself rather than malfunctioning. Owner reports consistently show this resolving itself after a full overnight charge on a proper smart charger, without any need to replace a perfectly healthy battery.

A genuine, documented fix worth knowing: many Ford owners report a specific "charging reset procedure" resolving persistent stop-start and low-battery warnings without needing a new battery: with the ignition on (engine off), flash the main beam headlights five times, then press the brake pedal three times, and wait roughly 20 seconds for the battery warning light to flash, confirming the reset. This isn't an official Ford procedure, but it's widely reported across owner forums as genuinely effective — worth trying before assuming your battery needs replacing.

Ford Puma Battery: Watch: Replacing It

🎬 Watch: Ford Fiesta Mk8 EcoBoost battery change

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The Puma shares the Fiesta Mk8 platform; the mild-hybrid Puma must have an AGM battery.

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Ford Puma Battery: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Battery Guide for warning signs to watch for, confirming fitment against your VIN, and matching the right technology (standard, EFB, AGM) when buying aftermarket.

More Ford Battery

The same part, covered across other Ford models.