## Technical Overview: Panasonic LC-R063R4P The **LC-R063R4P** is a high-quality Valve Regulated Lead-Acid (VRLA) rechargeable battery manufactured by **Panasonic**. It is part of the LC-R series, specifically designed for applications requiring high reliability and cyclic or trickle (standby) longevity. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Nominal Voltage** | 6V | | **Nominal Capacity** | 3.4 Ah (20-hour rate) | | **Chemistry** | Lead-Acid (AGM - Absorbed Glass Mat) | | **Terminal Type** | Faston 187 (4.75mm tabs) | | **Flame Retardancy** | UL94 HB (Standard) | | **Dimensions (L x W x H)** | 134 x 34 x 60 mm | | **Approximate Weight** | 0.60 kg (1.32 lbs) | --- ### 2. Internal Electronic Construction The "electronic" functionality of this part is rooted in its chemical engineering, categorized as a maintenance-free storage device: * **AGM Technology:** The electrolyte is absorbed into a fine glass fiber mat separator. This prevents leaks and allows the battery to be used in various orientations (except continuous inverted use). * **Pressure Relief Valve:** It features a self-sealing rubber vent. If internal pressure builds up due to overcharging, the valve releases gas and automatically reseals to prevent atmospheric oxygen from entering the cell. * **Lead-Calcium Alloy Grids:** The plates use a specific alloy that reduces "gassing" and extends the shelf life by lowering the self-discharge rate. * **Recombination System:** During normal operation, oxygen generated at the positive plate reacts with the active material on the negative plate and is converted back into water, eliminating the need for water replenishment. --- ### 3. Charging Characteristics To maintain the health of the LC-R063R4P, the following charging parameters are critical: | Use Case | Control Voltage (at 25°C) | Max Initial Current | | :--- | :--- | :--- | | **Cycle Use** | 7.25V to 7.45V | 1.36 A | | **Trickle/Standby** | 6.80V to 6.90V | 0.51 A | --- ### 4. Common Applications Due to its 6V 3.4Ah form factor, it is frequently found in: 1. **Emergency Lighting:** Powering exit signs and backup lamps during outages. 2. **Medical Equipment:** Portable monitors and diagnostic tools. 3. **Security Systems:** Backup power for alarm panels and sirens. 4. **Test Instruments:** Portable handheld meters that require a stable DC source.