The replacement battery Yaesu SBR-28LI 7,4V 1750 mAh – Yaesu SBR-28Li Replacement Battery for Yaesu FT-4XR, FT-4VR Two Way Radios Lithium-ion is a commercial-grade, high-performance portable power source precision-engineered to deliver a stable voltage output, reliable current regulation, and long-term shift durability for professional handheld walkie-talkies. Fabricated as an exact-fit primary or rotative spare power cell, this premium battery blocks the rapid capacity decay and unpredictable power loss typical of legacy or worn-out radio power alternatives. It stands as an essential operational procurement asset for industrial facility coordination, event logistics management, corporate security infrastructures, and high-volume B2B radiocommunication hardware wholesale networks looking to distribute high-performance factory power components.
The internal architecture of this high-integrity power pack leverages an advanced, high-density Lithium-ion (Li-Ion) chemistry formulation operating at a standard nominal electrical potential of 7.4V. Boasting a rated storage capacity of 1750 mAh (yielding a total energy density of 12.95Wh), it delivers an exceptionally flat discharge curve to ensure connected transceivers maintain maximum RF transmission punch and crystal-clear voice synchronization over long-range tracking coordinates. The inherent characteristics of its premium Lithium-Ion chemistry eliminate memory accumulation effects entirely, allowing user fleets to drop the battery into desktop charging cradles at any state of discharge without reducing its operational lifecycle or degrading fleet inventory assets.
Housed inside a ruggedized, impact-resistant ABS polymer casing finished in a professional low-profile matte black layout, the structural body matches the exact mechanical locking footprint of the host radio. The rear casing features robust mounting rails designed to slide smoothly and lock tightly into place, along with high-conductivity flush metal contact pads engineered to withstand the friction of repeated drop-in charging cycles. Certified for absolute technical system compliance and direct interoperability with the Yaesu models: FT-4XR and FT-4VR, this turnkey battery pack guarantees absolute field deployment readiness.
Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Product Brand Designation | Yaesu Compatible (High-Performance Commercial Replacement Line) |
| Hardware Model Designation | SBR-28LI / SBR-28Li Power Matrix Block |
| Primary Component Classification | Rechargeable Replacement Battery Pack for Handheld Transceivers / Two-Way Radios |
| Electrochemical System Core | Lithium-ion (Li-Ion Chemistry Matrix – Zero Memory Accumulation Effect) |
| Nominal Electrical Potential | 7.4V DC Direct Current Constant Delivery Output |
| Nominal Storage Charge Capacity | 1750 mAh (1750 Milliampere-Hours) Duty Cycle Rating / 12.95Wh |
| Chassis Housing Material | High-Impact Molded ABS/PC Polymer Compound with Texturized Grip Surface |
| Primary Base Charging Interface | Heavy-Duty Flush Metal Contact Strips (Compatible with desktop rapid charger pods) |
| Certified Radio Interoperability | Compatible with Yaesu models: • FT-4XR (Dual-Band VHF/UHF) • FT-4VR (Single-Band VHF) Handheld Series |
| Verified Hardware Compatibility Scope | Desktop drop-in rapid charging cradles, SBH-22 charging pods, belt clip mounts, and workshop RF line testers |
| Primary Fleet Utility Purpose | Turnkey multi-radio inventory outfitting, rotative shift cell substitution, portable power tracking stabilization, and transceiver power drop protection |
