Universal Dual Battery Charger for Li-ion Battery
Universal Dual Battery Charger for Li-ion Battery Original price was: 300৳ .Current price is: 270৳ .
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12V 8.2A Rechargeable Sealed Lead Acid UPS Battery for Backup Power
12V 8.2A Rechargeable Sealed Lead Acid UPS Battery for Backup Power Original price was: 1,500৳ .Current price is: 1,300৳ .

4 Volt 500mAh Sealed Lead Acid Rechargeable Batter

SKU: EBL-1143

Specifications:

  • Sealed Lead Acid (SLA) rechargeable battery with 4V 500mAh capacity.
  • Maintenance-free design with a strong ABS body.
  • Compact and lightweight, making it suitable for various applications.
  • Low self-discharge rate (<5% per month at 25°C) for long-term storage.

Original price was: 170৳ .Current price is: 140৳ .

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24 in stock

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Description

🔋 4 Volt 500mAh Sealed Lead Acid (SLA) Rechargeable Battery


🔹 Product Overview

The 4V 500mAh Sealed Lead Acid (SLA) Rechargeable Battery is a compact and maintenance-free power source designed for low-voltage electronic devices and backup systems.

Built using sealed lead-acid technology, this battery is leak-proof, durable, and reliable for long-term use in small emergency lighting, toys, medical devices, and portable equipment.


🔹 Key Features

  • ✅ Nominal Voltage: 4 Volt (4V)

  • ✅ Capacity: 500mAh (0.5Ah)

  • ✅ Sealed & maintenance-free design

  • ✅ Leak-proof and spill-proof

  • ✅ Rechargeable

  • ✅ Compact and lightweight

  • ✅ Stable output voltage

  • ✅ Durable ABS outer casing


🔹 Technical Specifications

Specification Details
Battery Type Sealed Lead Acid (SLA)
Nominal Voltage 4V
Capacity 500mAh
Charging Voltage 4.8V – 5.0V (Typical)
Terminal Type Pin/Tab Terminal (varies by model)
Design Valve Regulated (VRLA)
Maintenance Maintenance-Free

🔹 Applications

  • 🔦 Emergency Lights

  • 🚨 Alarm Systems

  • 🎮 Rechargeable Toys

  • 🧪 Laboratory Devices

  • 🏥 Medical Instruments

  • 🔋 Small Backup Systems


🔹 Advantages

✔ Low cost
✔ Reliable performance
✔ Easy to recharge
✔ Good for standby applications
✔ Long service life (with proper charging)


🔹 Charging Guidelines ⚠

  • Use a 4V SLA compatible charger

  • Avoid overcharging

  • Do not deep discharge frequently

  • Store in cool, dry place

  • Recharge after every use


🔹 Safety Notes

  • Do not short circuit

  • Do not open the battery casing

  • Avoid exposure to fire or high temperature

  • Dispose according to battery recycling rules

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