The 4 V 1 A Rechargeable Sealed Lead Acid (SLA) Battery is a compact, maintenance-free power source designed for backup power, portable electronics, and small embedded systems. Built using sealed lead acid technology, it offers reliable performance, leak-proof operation, and long service life. This battery is commonly used in emergency lights, toys, security systems, and DIY electronics projects where stable low-voltage power is required.
Core Battery Specifications
• Battery Type: Sealed Lead Acid (SLA)
• Nominal Voltage: 4 V
• Capacity: 1 Ah
• Rechargeable: Yes (maintenance-free)
Electrical & Interface
• Nominal Voltage: 4 V DC
• Rated Capacity: 1 Ah
• Charging Method: Constant voltage charging
• Typical Charging Voltage: ~4.8–5.0 V
• Terminal Type: Spade / wire terminals (variant dependent)
Performance Characteristics
• Stable output voltage during discharge
• Low self-discharge rate
• Reliable backup power performance
• Suitable for cyclic and standby use
Physical Characteristics
• Battery Construction: Sealed, leak-proof design
• Orientation: Can be mounted in multiple positions
• Compact and rugged casing
• Shock and vibration resistant
Compatibility
• Emergency lights
• Electronic toys
• Alarm and security systems
• DIY electronics and robotics
• Backup power circuits
Key Advantages
• Maintenance-free operation
• Safe and spill-proof design
• Simple charging requirements
• Cost-effective rechargeable solution
Technical Insights
• Do not overcharge to avoid reduced lifespan
• Requires SLA-compatible charger
• Avoid deep discharge for longer battery life
• Not suitable for high-current motor loads
Applications
• Emergency and backup lighting
• Security and alarm systems
• Educational electronics kits
• Portable low-power devices
• Embedded system power backup
Pro Tip
• Use a regulated charger designed for SLA batteries
• Recharge immediately after deep discharge
• Store in a cool, dry place when not in use
• Avoid short-circuiting the terminals
Package Includes
• 1 × 4 V 1 A Rechargeable Sealed Lead Acid Battery