Century 12V 140Ah AGM Deep Cycle Battery, C12-140XDA
Reliable, maintenance-free deep cycle power for caravans, marine, and mobility applications.
Designed to perform in tough Aussie conditions, the Century 12v 140ah AGM battery delivers long-lasting, dependable energy with advanced AGM technology and robust construction.
Century 12V 140Ah AGM Deep Cycle Battery, C12-140XDA
Check the current merchant listing for full product details, compatibility notes, dimensions, included items, and product-specific guidance before you buy.
Quick Facts at a Glance
- Voltage: 12V
- Capacity: 140Ah (20-hour rate at 25°C)
- AGM sealed, maintenance-free design with spill-proof tech
- Weight: Approx. 41.5 kg
- Vibration resistant with robust internal components
- Fast recharge capability with recommended max charging current of 40.2A
- Dimensions: 340mm (L) × 173mm (W) × 280mm (H), 285mm including terminals
Trustworthy Features
- Absorbed Glass Mat (AGM) technology eliminates liquid electrolyte, preventing leaks and acid spills
- Low self-discharge rate (<3% per month at 25°C) for extended storage without performance loss
- Superior vibration resistance for harsh environments, making it ideal for caravans, boats and mobility devices
- Sealed, maintenance free container rated for side mounting up to 90°
Best For
- Recreational vehicles and caravan dual battery systems needing deep cycle and fast recharge
- Marine and boating applications requiring leak-proof and vibration-resistant power sources
- Golf carts, electric wheelchairs, and mobility scooters demanding sturdy and maintenance-free operation
- Users who want long cycle life and dependable performance in a sealed battery
Not Ideal For
- Instances where lightweight battery solution is critical – this battery weighs approx. 41.5 kg
- Battery applications requiring operation outside recommended temperature ranges (charge: 0°C to 50°C; discharge: 20°C to 60°C)
- Installation under bonnets or engine compartments (warranty is voided in these cases)
Century 12V 140Ah AGM Deep Cycle Battery, C12-140XDA
Check the current merchant listing for full product details, compatibility notes, dimensions, included items, and product-specific guidance before you buy.
Technical Specifications
| Voltage | 12V |
|---|---|
| Capacity | 140Ah @ 20hr-rate to 1.75V per cell @ 25°C |
| Cells | 6 |
| Max Discharge Current | 1400A (5-second pulse) |
| Internal Resistance | Approx. 4mΩ |
| Float Charging Voltage | 13.6 to 13.8 VDC/unit @ 25°C |
| Recommended Max Charging Current | 40.2A |
| Equalisation & Cycle Service Voltage | 14.6 to 14.8 VDC/unit @ 25°C |
| Operating Temperature Range | Discharge: 20°C to 60°C; Charge: 0°C to 50°C; Storage: -20°C to 60°C |
| Weight | Approx. 41.5 kg |
| Dimensions (L×W×H×Terminal Height) | 340mm × 173mm × 280mm × 285mm |
| Terminal Type | M8 Insert |
| Container Material | ABS (UL94-HB rated) |
Note: Warranty is void if battery is mounted under the bonnet or engine bay.
Frequently Asked Questions
Yes, thanks to its spill-proof AGM design, the battery supports side mounting up to 90° without risk of leaks.
The battery can be stored for over six months at ambient 25°C with less than 3% self-discharge per month. It is recommended to recharge before use after storage.
It performs optimally within 20°C to 60°C discharge temperature and 0°C to 50°C charge temperature. Operating beyond these limits can reduce lifespan.
The sealed AGM construction means it’s completely maintenance free—no watering or acid refilling needed.
Ready to Power Your Adventures?
The Century 12V 140Ah AGM Deep Cycle Battery combines advanced technology, rugged durability, and low maintenance for reliable, long-lasting energy you can trust on the road or water.
