Banshee CR-390

CR-390 Crown Replacement Deep Cycle Battery User Manual

Model: CR-390

Brand: Banshee

1. Introduction

This manual provides essential information for the safe and effective use of your Banshee CR-390 Crown Replacement Deep Cycle Battery. The CR-390 is a 6V, 390 Ah flooded/wet lead-acid battery designed for demanding deep cycle applications. Manufactured in the USA, these batteries are engineered for reliability and performance, featuring a one-piece solid cast design and thick plates for extended life.

Typical applications include Golf Cars, RVs, Marine vessels, Solar & Wind Energy systems, Floor Machines, Man Lifts, and Aircraft Tugs & Trucks.

Eight Banshee CR-390 deep cycle batteries arranged in two rows.

Image 1.1: Banshee CR-390 Deep Cycle Batteries (8-pack)

2. Safety Information

Always prioritize safety when handling batteries. Improper handling can lead to serious injury or damage. Read and understand all safety warnings before proceeding.

  • Eye Protection: Always wear appropriate eye protection (safety glasses or goggles) when working with batteries.
  • Skin Protection: Wear acid-resistant gloves and protective clothing to prevent contact with battery acid.
  • Ventilation: Ensure adequate ventilation when charging or operating batteries to disperse hydrogen gas, which is highly flammable.
  • No Smoking/Open Flames: Keep sparks, open flames, and smoking materials away from batteries.
  • Short Circuits: Avoid short-circuiting battery terminals with tools or other conductive materials. Remove all metallic jewelry before working with batteries.
  • Lifting: Batteries are heavy. Use proper lifting techniques or equipment to prevent injury. The CR-390 weighs approximately 115 pounds.
  • First Aid: In case of contact with battery acid, flush affected area with water for at least 15 minutes and seek immediate medical attention.
  • Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

3. Product Overview

The Banshee CR-390 is a high-performance 6V deep cycle battery designed for longevity and consistent power delivery. Key features include:

  • Deep Cycle Design: Optimized for repeated deep discharge and recharge cycles.
  • Robust Construction: Features a one-piece solid cast design for lower internal resistance and superior performance.
  • Thick Plates: Utilizes the heaviest, thickest plates in the industry for increased power and longer life.
  • PROeye System: Proprietary system for easy monitoring of electrolyte levels, making maintenance predictable and efficient.
  • Z3 Plate Construction: Incorporates Diamond Z grid architecture, an inset lug position, and LifePlus active paste material for enhanced durability.
  • Terminal Type: Marine Terminal.
Crown Battery logo with a crown icon and text 'Crown Battery Since 1926'.

Image 3.1: Crown Battery Logo

4. Setup and Installation

Proper installation is crucial for battery performance and safety. If you are unsure about any step, consult a qualified professional.

4.1 Pre-Installation Checks

  1. Inspect batteries for any signs of damage (cracks, leaks, broken terminals). Do not install damaged batteries.
  2. Ensure the battery compartment is clean, dry, and well-ventilated.
  3. Verify that the charging system is compatible with 6V flooded lead-acid batteries and is functioning correctly.
  4. Gather necessary tools: insulated wrenches, terminal cleaner, battery terminal grease, safety gear.

4.2 Installation Steps

  1. Disconnect Power: Before beginning, ensure all power to the system is off and disconnect the negative (-) cable from the existing battery bank first, then the positive (+).
  2. Remove Old Batteries: Carefully remove old batteries, noting their configuration (series/parallel).
  3. Position New Batteries: Place the CR-390 batteries in the compartment, ensuring they are securely mounted to prevent movement during operation. Maintain proper spacing for ventilation.
  4. Clean Terminals: Clean battery terminals and cable connectors thoroughly to ensure good electrical contact.
  5. Connect Cables: Connect cables in the correct series or parallel configuration as required by your system. Always connect the positive (+) cables first, then the negative (-) cables. Ensure connections are tight but do not overtighten.
  6. Apply Terminal Grease: Apply a thin layer of battery terminal grease to prevent corrosion.
  7. Ventilation: Confirm that the battery compartment has adequate ventilation.
  8. Initial Charge: After installation, perform an initial full charge cycle as per the operating instructions.

5. Operating Instructions

The CR-390 is designed for deep cycle applications, meaning it can be discharged significantly before recharging. Follow these guidelines for optimal performance and lifespan.

5.1 Initial Charge

New batteries are typically shipped with a partial charge. Before first use, fully charge the batteries using a charger designed for flooded lead-acid batteries. This initial charge is critical for conditioning the battery plates.

5.2 Normal Operation

  • Discharge Depth: Avoid consistently discharging the battery below 50% of its capacity for maximum cycle life. Occasional deeper discharges are acceptable, but frequent deep discharges will reduce overall lifespan.
  • Recharging: Recharge batteries as soon as possible after discharge. Do not leave batteries in a discharged state for extended periods.
  • Temperature: Battery performance is affected by temperature. Operate batteries within recommended temperature ranges. Extreme cold reduces capacity, while extreme heat can shorten lifespan.

5.3 Recommended Applications

The CR-390 is suitable for a wide range of applications requiring reliable deep cycle power, including:

  • Golf Carts
  • Recreational Vehicles (RVs)
  • Marine Applications
  • Solar and Wind Energy Storage
  • Floor Cleaning Machines
  • Man Lifts
  • Aircraft Tugs and Trucks

6. Maintenance

Regular maintenance is essential to maximize the lifespan and performance of your CR-390 batteries.

6.1 Electrolyte Level Check (PROeye)

The CR-390 features Crown's PROeye system for easy electrolyte level monitoring. Check levels regularly, especially after charging.

  • Frequency: Check electrolyte levels monthly, or more frequently in hot climates or with heavy use.
  • Procedure: When the PROeye indicator shows low, add distilled water to bring the level to the indicator mark. Do not overfill.
  • Important: Only add distilled water. Never add acid or tap water.

6.2 Terminal Cleaning

Corrosion on terminals can impede current flow and reduce performance.

  • Frequency: Inspect terminals for corrosion monthly.
  • Procedure: If corrosion is present, disconnect the battery (negative first), clean terminals and cable connectors with a wire brush and a baking soda/water solution. Rinse with clean water and dry thoroughly. Reconnect and apply terminal grease.

6.3 Charging Guidelines

  • Use a charger specifically designed for flooded lead-acid batteries with appropriate voltage and amperage settings.
  • Ensure proper ventilation during charging.
  • Avoid overcharging or undercharging, as both can damage the battery.

6.4 Storage

If storing batteries for an extended period:

  • Fully charge the batteries before storage.
  • Store in a cool, dry, well-ventilated area, away from direct sunlight and extreme temperatures.
  • Perform a maintenance charge every 30-60 days to prevent sulfation.

7. Troubleshooting

This section addresses common issues you might encounter with your CR-390 batteries.

ProblemPossible CauseSolution
Battery not holding charge / Low voltageUndercharging; Sulfation; Low electrolyte levels; Faulty charger; Internal cell damage.Ensure full charge cycles; Check electrolyte levels and add distilled water; Test charger output; Consult a professional for internal issues.
Shortened runtimeUndercharging; Excessive load; Old battery; High operating temperature.Ensure full charge; Reduce load if possible; Consider battery replacement if old; Ensure proper ventilation.
Corrosion on terminalsAcid fumes; Loose connections.Clean terminals and apply anti-corrosion grease; Ensure connections are tight.
Battery overheating during chargeOvercharging; High ambient temperature; Internal short.Check charger settings; Ensure proper ventilation; Discontinue use and consult professional if internal short is suspected.

If troubleshooting steps do not resolve the issue, or if you suspect internal damage, contact a qualified battery technician or the manufacturer for assistance.

8. Specifications

SpecificationValue
Model NumberCR-390
Voltage6V
Amperage (Ah)390 Ah
Battery TypeDeep Cycle Flooded/Wet Lead-Acid
Terminal TypeMarine Terminal
Item Weight (per battery)Approx. 115 pounds (52.16 kg)
Product Dimensions (per battery)10.31 x 7.06 x 10.82 inches (26.19 x 17.93 x 27.48 cm)
Country of OriginUSA
Manufacturer Part NumberCR-165
UPC840334224884

9. Warranty and Support

Banshee batteries are manufactured to high standards. For specific warranty information, please refer to the warranty documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for warranty claims.

For technical support or inquiries, please contact the Banshee customer service department or the authorized dealer from whom you purchased the product. You can often find contact information on the seller's page or the official Banshee website.

Visit the Banshee Store on Amazon for more information.

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