The Duracell Ultra SLI24MDP is a 12V lead-acid battery designed for automotive starting applications, delivering 550 Cold Cranking Amps (CCA). This valve-regulated, maintenance-free battery provides reliable power for engine ignition and onboard electronics, particularly in moderate climates. With dimensions optimized for standard vehicle compartments, it ensures secure fitment and vibration resistance. Pro Tip: For optimal lifespan, avoid deep discharges—recharge immediately if voltage drops below 12.4V. What You Need to Know About Your 2012 Chevy Equinox Battery
What does the “550CCA” rating signify?
The 550CCA rating measures the battery’s ability to deliver 550 amps for 30 seconds at -18°C without dropping below 7.2V, critical for cold starts. Unlike cranking amps (CA) measured at 0°C, CCA reflects real-world winter performance. For example, a pickup truck requiring 400CCA in temperate zones may need 550CCA in subzero regions. Pro Tip: Replace the battery if CCA drops below 385A (30% degradation) to prevent failure during extreme conditions.
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How does the SLI24MDP differ from marine batteries?
Unlike deep-cycle marine batteries, the SLI24MDP prioritizes high burst current over sustained discharges. Its thin lead plates maximize surface area for rapid energy release, while marine batteries use thicker plates for prolonged output. Consider a pontoon boat: Starting the engine (SLI) demands 500CCA briefly, but trolling motors require marine batteries with 100Ah capacity for 5+ hours. What Makes the Duralast Marine and RV Deep Cycle Battery a Top Choice?
| Feature | SLI24MDP | Marine Battery |
|---|---|---|
| Plate Thickness | 1.1mm | 2.3mm |
| Cycle Life | 300 cycles | 600 cycles |
What vehicles are compatible with this battery?
The SLI24MDP suits gasoline-powered cars with 2.0L–3.5L engines, including sedans and crossovers. Its Group 24M size (260mm L x 173mm W x 225mm H) fits Asian and domestic models like Honda Accord (2015–2019) or Ford Fusion. Always verify terminal positions—some European vehicles require reverse polarity (JIS D26 instead of SAE 24M). Pro Tip: Check OEM specs for minimum CCA; turbocharged engines often need 600+ CCA.
How should the SLI24MDP be maintained?
Store at 12.6V–12.8V when idle, using a smart charger to prevent sulfation. Clean terminals quarterly with baking soda solution to remove corrosion. In extreme heat, check electrolyte levels monthly (if applicable). For example, a battery in Phoenix might lose 0.1V/month due to evaporation, accelerating plate degradation. Fasta Power
Redway Battery Expert Insight
FAQs
Not advised—winches draw 200–400A continuously, risking plate warping. Use dual batteries with an isolator for accessory loads.
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Is this battery spill-proof?
Yes, its sealed VRLA design prevents acid leaks even at 45° tilt. However, avoid puncturing the case during installation.
