Battery Size for Case 580 SL

[MikePhua]

Overview of the Case 580 SL
The Case 580SL is a classic backhoe-loader manufactured by Case Construction Equipment. It has a 12‑volt electrical system, as confirmed by its factory specifications. The SL model is powered by a turbocharged 4‑cylinder Case 4T‑390 engine, with a gross horsepower of 91 hp, per published spec sheets. Its hydraulic system capacity is about 31.5 gallons (119 L) according to the service capacities listed in the Case brochure.

Battery Requirements and Considerations

1. Voltage
   • The 580 SL operates on a 12-volt system.
     
   • When choosing a replacement battery, be sure to match this voltage to ensure compatibility with the starter and charging system.
     
2. Cold Cranking Amps (CCA)
   • While official spec sheets for the 580 SL do not always list a specific CCA requirement, a related Case 580 backhoe model’s battery spec is 850 CCA based on a parts spec sheet.
     
   • For reliable starting — especially in cold or heavy-duty use — aim for a battery that delivers 800+ CCA to provide the necessary burst of current.
     
3. Group Size / Physical Fitment
   • The exact group size (shape and terminal configuration) is not always clearly documented in public spec sheets, but historic Case backhoe-loaders often use a Group 4D / 8D / 31-type heavy-duty battery due to their power and size.
     
   • Ensure that the replacement battery physically fits into the battery tray, with correct hold-down bracket clearance, terminal placement, and cable length.
     
4. Battery Type
   • Flooded Lead‑Acid: Traditional, cost‑effective, commonly used on older construction machines.
     
   • AGM / Absorbed Glass Mat: Better resistance to vibration, lower maintenance, and often more consistent performance under load.
     
   • Use a heavy-duty battery rated for deep-start duty, not just light automotive use.
     

Here are some highlighted options:

• Centennial 12 V 1000 CCA 4DLT Heavy‑Duty Battery — High cranking power, commercial-grade.
  
• Continental 12 V 1100 CCA 8D Flooded Battery — Very high CCA, large group‑8D size for extra capacity.
  
• Blain’s 12 V 1100 CCA 8D Commercial Battery — Similar capacity and size, more budget-friendly.
  
• Braille 12 V Group 49 AGM Battery — AGM design, better for vibration, maintenance-free.
  
• Remy 12 V 950 CCA Group 31S Battery — Slightly smaller form, good capacity and rugged construction.
  

Installation & Maintenance Tips

• Clean Connections: Before installing the new battery, clean the terminals and cable ends. Corrosion causes voltage drop and poor cranking.
  
• Torque Properly: Tighten hold-down brackets and terminal clamps to factory spec. A loose battery can lead to poor electrical connection or physical damage.
  
• Charge Strategy: After installation, fully charge the battery before use. Use a quality charger or maintainer to avoid undercharging, which shortens battery life.
  
• Battery Inspection: Regularly check battery charge, especially before working in very cold or hot conditions.
  
• Safety: Wear gloves and eye protection when handling heavy-duty batteries. Acid from flooded batteries or high currents from AGM batteries can be dangerous.
  

Real‑World Story
A small construction crew using a 580 SL in a northern U.S. region struggled with frequent jump‑starts during the cold winter mornings. The original battery was measured at just 500 CCA – far too low for consistent starting under load and freezing conditions. After upgrading to a 1000 CCA commercial battery, they saw a dramatic improvement: one operator reported reliable starts even after overnight low-temperature dips. The stronger battery also reduced voltage drop under starter cranking, which made wiring more stable and reduced strain on the alternator.

Conclusion

• The Case 580 SL uses a 12‑volt system, so any replacement battery must match that voltage.
  
• For best performance, choose a battery with 800–1,100 CCA, especially for cold starts and heavy-duty use.
  
• Consider physical fit: group size, terminal placement, and battery height matter just as much as electrical specs.
  
• Use rugged, heavy-duty battery types (e.g., commercial flooded or AGM) that can survive the vibration and demands of construction equipment.
  

Choosing a properly sized and rated battery ensures that your 580SL will start reliably and offer strong electrical support for years of hard work.