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Lion Marine Batteries

Lion ES5-12 Battery – 12V 4.5Ah Sealed AGM Rechargeable Battery

Brand: Lion Batteries

SKU: LB-ES5-12

$44.20
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The Lion ES5-12 12V 4.5Ah Battery provides dependable rechargeable power for marine electronics, emergency lighting, security systems and backup power applications. Featuring sealed Absorbent Glass Mat (AGM) technology, this compact battery offers maintenance-free operation, low self-discharge and reliable performance. Its spill-resistant construction makes it suitable for a variety of installations, while the rechargeable design provides a practical power solution for compatible 12V electrical equipment.

Key benefits

Key Benefits

  • - 12V rechargeable battery with 4.5Ah nominal capacity.
  • - Sealed AGM technology for reliable performance.
  • - Maintenance-free operation with no electrolyte top-ups.
  • - Spill-resistant, valve-regulated construction.
  • - Low self-discharge during storage.
  • - Compact design for confined installations.
  • - Suitable for standby and selected cyclic applications.
  • - Ideal for marine electronics and backup power systems.

Specifications & Dimensions

  • - Brand: Lion Batteries
  • - Part Number: ES5-12
  • - Battery Type: Sealed Lead Acid (SLA)
  • - Technology: Absorbent Glass Mat (AGM)
  • - Construction: Valve-Regulated Lead Acid (VRLA)
  • - Nominal Voltage: 12V DC
  • - Nominal Capacity: 4.5Ah
  • - 20-Hour Discharge Current: 225mA
  • - Maximum Discharge Current: 40A for 5 seconds
  • - Cycle Charging Voltage: 14.40–15.00V at 20°C
  • - Standby Charging Voltage: 13.50–13.80V at 20°C
  • - Charging Current: 420mA (listed charging guidance)
  • - Terminal Type: Faston-style spade terminals; verify exact size
  • - Length: Approximately 90–94mm (3.54–3.70")
  • - Width: Approximately 70mm (2.76")
  • - Height: Approximately 100–107mm (3.94–4.21")
  • - Weight: Approximately 1.6–1.7kg (3.53–3.75lb)

Compatible Applications

  • Marine Applications
  • - Portable marine electronic equipment requiring 12V power.
  • - Navigation and emergency lighting systems.
  • - Marine alarm and security systems.
  • - Selected low-current backup power installations.
  • - Portable electronic accessories with compatible power requirements.

Caravan & Recreational Applications

  • - Caravan alarm systems.
  • - Camper trailer emergency lighting.
  • - Portable 12V electrical equipment.
  • - Small backup power installations.

General Electrical Applications

  • - Uninterruptible Power Supply (UPS) systems.
  • - Security alarm control panels.
  • - Emergency exit lighting.
  • - Telecommunications backup equipment.
  • - Electronic testing equipment.
  • - Selected medical equipment where manufacturer-approved.

Important Fitment Information

  • - Confirm the equipment requires a 12V 4.5Ah rechargeable battery.
  • - Check physical dimensions and terminal sizes before installation.
  • - Use a charger specifically designed for sealed AGM lead-acid batteries.
  • - Observe correct positive and negative terminal polarity.
  • - Avoid excessive discharge to maintain battery service life.
  • - Not designed as a primary outboard engine starting battery.
  • - Confirm suitability for continuous cycling or standby use before installation.

Signs the Battery Needs Replacing

  • - Equipment fails to operate despite charging.
  • - Battery no longer holds its charge.
  • - Reduced backup operating time.
  • - Swollen or damaged battery casing.
  • - Corroded or damaged terminals.
  • - Battery fails a voltage or capacity test.

Shipping

Ships Australia-wide