1. Introduction
This manual provides essential information for the safe and effective use, installation, maintenance, and troubleshooting of your Banshee Crown CR-165 8V Deep-Cycle Flooded Battery. Please read this manual thoroughly before using the battery and retain it for future reference.
The Banshee Crown CR-165 is a high-performance 8-volt, 165Ah deep-cycle flooded lead-acid battery, designed for demanding applications such as golf cars, RVs, marine vessels, solar and wind energy systems, floor machines, man lifts, aircraft tugs, and trucks. Manufactured in the USA, these batteries are built to exacting specifications for durability and reliability.
2. Safety Information
WARNING: Batteries contain sulfuric acid and produce explosive gases. Improper handling can cause severe injury or death. Always follow these safety precautions:
- Eye Protection: Always wear appropriate eye protection (safety glasses or goggles) when working with batteries. Sulfuric acid can cause blindness.
- Skin Protection: Wear protective gloves and clothing to prevent skin contact with sulfuric acid. In case of contact, flush immediately with water for several minutes and seek medical help.
- Ventilation: Ensure adequate ventilation when charging or operating batteries to disperse hydrogen gas, which is highly flammable and explosive.
- No Smoking/Sparks/Flames: Keep all sources of ignition away from batteries. Do not smoke, use open flames, or create sparks near batteries.
- Tools: Use insulated tools to prevent short circuits. Do not place metal objects on top of the battery.
- Children: Keep batteries out of reach of children.
- Tipping: Do not tip the battery. Keep vent caps tight and level to prevent acid spills.
- Disposal: Batteries must be recycled. Dispose of them according to local regulations.
For more detailed safety information, refer to the warnings printed directly on the battery label.

Image: Top view of the Banshee Crown CR-165 battery, clearly showing the safety warnings and instructions printed on its label, including symbols for eye protection, acid danger, no smoking, and recycling.
3. Product Overview and Features
The Banshee Crown CR-165 battery is engineered for superior performance and longevity in deep-cycle applications. Key features include:
- Deep-Cycle Design: Optimized for sustained power delivery over long periods, ideal for applications requiring frequent deep discharge and recharge cycles.
- Robust Construction: Features a one-piece solid cast design that lowers internal resistance, enhancing battery efficiency and performance.
- Thick Plates: Utilizes the heaviest, thickest plates in the industry, contributing to more power and a longer service life.
- High Capacity: 8-volt, 165 Amp-hour (Ah) capacity, BCI Group Size GC8.
- Dimensions: Length: 10.31 inches, Width: 7.06 inches, Height: 10.82 inches.

Image: Front view of the Banshee Crown CR-165 battery, highlighting its key specifications including Group Size GC8, 8V Voltage, 165Ah Capacity, and 64 lbs Weight.

Image: A detailed diagram illustrating the physical dimensions of the Banshee Crown CR-165 battery, with measurements of 10.31 inches in length, 7.06 inches in width, and 10.82 inches in height.
Video: An overview of the Crown CR-165 battery, showcasing its features and benefits. This video is provided by Blue Grass Wholesale, the seller.
4. Setup and Installation
Proper installation is crucial for battery performance and safety. Always refer to the equipment manufacturer's instructions for specific installation procedures.
- Inspection: Before installation, visually inspect the battery for any signs of damage, cracks, or leaks. Ensure terminals are clean and free of corrosion.
- Ventilation: Install the battery in a well-ventilated area to prevent the accumulation of hydrogen gas.
- Mounting: Secure the battery firmly in its compartment to prevent movement or tipping during operation.
- Connections:
- Ensure all cables are clean and in good condition.
- Connect the positive (+) terminal first, then the negative (-) terminal.
- Tighten all connections securely, but do not overtighten. Loose connections can cause overheating and damage.
- Apply a thin coat of anti-corrosion grease to the terminals after connections are made.
- Terminal Type: The battery features standard lead terminals suitable for various connections.

Image: A close-up view of the battery terminals, illustrating the design for secure cable connections.
5. Operating Instructions
The Banshee Crown CR-165 is a deep-cycle battery designed for applications requiring consistent power over extended periods. Follow these general operating guidelines:
- Initial Charge: It is recommended to fully charge the battery before its first use to ensure maximum capacity and lifespan.
- Discharge Depth: Avoid excessively deep discharges. While deep-cycle batteries are designed for this, consistently discharging below 50% state-of-charge can reduce overall cycle life.
- Charging Frequency: Recharge the battery 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 and charge batteries within recommended temperature ranges (typically 20-30°C or 68-86°F) for optimal results. Extreme temperatures can reduce capacity and life.
6. Maintenance
Regular maintenance is essential for maximizing the life and performance of your flooded lead-acid battery.
6.1. Water Levels
- Check Regularly: Periodically check the electrolyte levels in each cell. This is especially important during charging.
- Add Distilled Water: If the electrolyte level is low, add only distilled water to cover the plates. Do not overfill. Never add acid.
- Vent Caps: Ensure vent caps are securely tightened after checking or adding water.

Image: Top view of the Banshee Crown CR-165 battery with its vent caps removed, illustrating the access points for checking and refilling electrolyte levels.
6.2. Cleaning
- Keep the battery top clean and dry. A mixture of baking soda and water can neutralize acid spills. Rinse with clean water and dry thoroughly.
- Clean battery terminals and cable connectors regularly to prevent corrosion.
6.3. Charging Instructions
Crown Battery Manufacturing Company specifies the following standard battery charge profile for the CR-165 deep cycle battery when used in an electric vehicle service:
Phase 1: Constant Current (I1)
- I1 = highest amperage available < 25 amps
- I1 = minimum amperage available > 10 amps
- Normal transition to Phase 2 at 2.37 Volts Per Cell (VPC).
- Safety transition to END OF CHARGE of dV / dt < 0V / 1 hr, dt = 1 hr. (NEGATIVE SLOPE).
- Timeout for Phase 1 = 10 hours.
Phase 2: Constant Voltage (U2)
- U2 = 2.37 VPC
- Normal Transition to Phase 3 at I2 = 4.0 amps or approximate.
- Safety transition to END OF CHARGE of l dI/dt l < 0.4 amp / 1 hr, dt = 1 hr.
Phase 3: Constant Current (I3)
- I3 = 4.0 amps or approximate
- Normal transition to END OF CHARGE at 115 - 118% of AH returned.
- Timeout for charging phases 1 - 3 at 16 hours.
- Temperature compensation coefficient = +/- 3 mV / °C.
6.4. Equalization Charge
- Recommended: Every seven (7) days.
- Procedure: 4 additional hours at normal finish rate of 4.5 amps for 4 hours.
- Safety: Safety transition to END OF CHARGE at maximum voltage of 2.7 VPC.
7. Troubleshooting
This section addresses common issues you might encounter with your deep-cycle battery. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not holding charge | Sulfation, low electrolyte, faulty charger, internal cell damage. | Check electrolyte levels and add distilled water if needed. Ensure charger is functioning correctly. Perform an equalization charge. If issues persist, battery may need replacement. |
| Reduced capacity/short run time | Undercharging, frequent deep discharges, aging battery, low electrolyte. | Ensure proper charging cycles are followed. Avoid excessive deep discharges. Check water levels. Consider battery age. |
| Corrosion on terminals | Acid leakage, improper ventilation, lack of maintenance. | Clean terminals with a baking soda and water solution. Apply anti-corrosion grease. Ensure vent caps are tight. |
| Battery overheating during charge | Overcharging, high ambient temperature, internal short circuit. | Verify charger settings. Ensure adequate ventilation. Discontinue charging if severe and seek professional advice. |
8. Specifications
| Specification | Value |
|---|---|
| Brand | Banshee |
| Model Number | CR-165 |
| Battery Cell Composition | Lead Acid |
| Voltage | 8 Volts |
| Battery Capacity | 165 Amp Hours |
| BCI Group Size | GC8 |
| Item Dimensions (L x W x H) | 10.31 x 7.06 x 10.82 inches |
| Item Weight | 64 Pounds |
| UPC | 840334224815 |
| ASIN | B0BLJ3ZF77 |
9. Warranty Information
The Banshee Crown CR-165 Deep-Cycle Flooded Battery comes with a 1-Year Warranty. This warranty covers manufacturing defects in materials and workmanship from the date of purchase. Please retain your proof of purchase for warranty claims.
For specific warranty terms and conditions, or to initiate a warranty claim, please contact Banshee customer support.
10. Support and Contact
For further assistance, technical support, or inquiries regarding your Banshee Crown CR-165 battery, please contact Banshee customer service or the authorized dealer from whom you purchased the product.
You can also visit the Banshee Store on Amazon for more information and product resources.





