CS BATTERY SBR-28 Replacement Battery User Manual

1. Introduction

This manual provides essential information for the safe and effective use of your CS BATTERY SBR-28 replacement battery. This high-capacity Lithium-Ion battery is designed to provide reliable power for compatible YAESU two-way radios. Please read this manual thoroughly before use and retain it for future reference.

2. Safety Information

Observe the following safety precautions to prevent damage to the battery, radio, or personal injury:

• Do not disassemble, crush, puncture, or short-circuit the battery.
• Do not expose the battery to high temperatures (above 49°C / 120°F) or direct sunlight.
• Do not dispose of the battery in fire or water.
• Use only chargers specified for Lithium-Ion batteries.
• Keep the battery away from children.
• If the battery emits an unusual odor, heats up, changes color, or appears abnormal during use, charging, or storage, immediately remove it from the device or charger and discontinue use.
• This battery features multiple protection mechanisms including over-charge, over-discharge, over-heat, over-current, and short-circuit protection.

Image: The CS BATTERY SBR-28 is designed with multiple protection features, including safeguards against overcharge, overvoltage, overcurrent, electromagnetic interference, short circuit, overheating, over power, and over discharge, ensuring enhanced safety and performance.

3. Compatible Devices

The CS BATTERY SBR-28 replacement battery is compatible with the following YAESU two-way radio models:

• YAESU FT-4VE
• YAESU FT-4VR
• YAESU FT-4VX
• YAESU FT-4XE
• YAESU FT-4XR

It is also a compatible replacement for original battery part numbers SBR-28, SBR-28Li, SBR-26LI, and SBR-25LI.

Image: The CS BATTERY SBR-28 replacement battery is shown next to several YAESU FT-4 series radios, including the FT-4VE, FT-4VR, FT-4VX, FT-4XE, and FT-4XR, illustrating its broad compatibility.

4. Setup and Installation

Follow these steps to install the replacement battery into your compatible YAESU radio:

1. Power Off: Ensure your YAESU radio is completely powered off before attempting battery installation or removal.
2. Remove Old Battery: Locate the battery release latch or button on your radio (typically on the back or bottom). Press or slide it to unlock the existing battery pack. Carefully slide the old battery out of its compartment.
3. Insert New Battery: Align the CS BATTERY SBR-28 replacement battery with the battery compartment. Ensure the metal contacts on the battery align with the contacts inside the radio.
4. Secure Battery: Gently slide the new battery into the compartment until it clicks securely into place. Verify that the battery is firmly seated and does not wobble.
5. Initial Charge: For optimal performance, it is recommended to fully charge the new battery before its first use.

Image: A dual view of the CS BATTERY SBR-28 replacement battery, highlighting its front label with model number SBR-28, capacity (1750mAh), and voltage (7.4V), and its rear showing the electrical contacts for proper installation.

5. Operating Instructions

Once installed, operate the battery as follows:

• Charging: Use the original YAESU charger or a compatible Lithium-Ion charger to charge the battery. Connect the radio with the installed battery to the charger. The charging indicator on your radio or charger will typically show the charging status.
• Usage: The battery powers your radio for communication. Monitor your radio's battery level indicator to determine when recharging is necessary.
• Battery Life: If your radio's operating time significantly decreases, it indicates that the battery may need recharging or, if it's an older battery, replacement.

6. Maintenance and Storage

Proper care extends the life of your battery:

• Regular Charging: Avoid completely draining the battery frequently. Recharge it before it reaches critically low levels.
• Storage: If storing the battery for an extended period, charge it to approximately 50-70% capacity. Store it in a cool, dry place, away from direct sunlight and extreme temperatures.
• Cleaning: Keep the battery contacts clean using a dry, soft cloth. Avoid using liquids or abrasive cleaners.
• Temperature Resistance: This battery is designed for stable output even in challenging environments, including temperatures as low as minus 20 degrees Celsius.

Image: A detailed view of the CS BATTERY SBR-28 battery, emphasizing its durable build and the gold-plated contacts, indicating its design for reliable performance in various conditions, including resistance to heat and cold.

7. Troubleshooting

If you encounter issues with your battery, consider the following:

• Battery Not Charging:
  • Ensure the battery is correctly seated in the radio and the charger.
  • Check if the charger is properly connected to a power source.
  • Clean the battery and radio contacts with a dry cloth.
  • Try charging with a different compatible charger if available.
• Short Operating Time:
  • The battery may not be fully charged. Ensure a complete charge cycle.
  • If the battery is old, its capacity may have degraded, requiring replacement.
  • Extreme temperatures can temporarily reduce battery performance.
• Radio Not Powering On:
  • Verify the battery is fully charged and correctly installed.
  • Check if the radio itself has an issue by testing with another known-good battery.

8. Specifications

Image: The CS BATTERY SBR-28 is presented with text emphasizing its upgraded high capacity of 1750mAh, promising a longer service time and extended standby time for compatible devices.

9. Warranty and Support

For information regarding warranty coverage, technical support, or any product-related inquiries, please refer to the contact information provided by your retailer or the manufacturer, CS BATTERY. Always provide your product model number (SBR-28) and purchase details when seeking support.