Caravan battery / Motorhome battery 

Camper battery / Car battery 

Deep cycle battery / Dual battries


Make sure there is enough battery capacity (Amp Hours) to suit the application.

Calculate by following the next few steps

1. Work out the daily power needed for 12V appliances, add 30% extra     
2. Calculate practical battery capacity based on 80% depth of discharge
3. Choose a battery to provide enough power + Charger that won't struggle to recharge    

Comparison Calculation
Amps(A) per appliance x Average hours(H) of use per day = Amp Hours (AH) per day
Refrigerator, 7 Amps for 8 Hours = (7x8) = 56 AH
Lighting, 1 Amp for 4 Hours = (1x4) = 4 AH
Daily Power Required = 60 AH
Add your 30% (safety measure) = (60 x 1.3%) = 78 AH
With 80% depth of discharge / Daily Power Requirement = (78 divided by 0.8)= 97.5 AH
Century Gel/AGM 100 AMP / HR -  suitable for this application under this condition

Century Batteries
Locally manufactured products
Century has one of the widest selections of lead acid batteries in Australia. We manufacture a majority of these batteries, which are developed to the highest standards in quality. They boast innovative design features that better suit local conditions.

Performance Series
Want a longer life battery for your vehicle? The Australian designed and manufactured Performance Series will last longer under the toughest of Australian conditions to give you peace of mind.

Century Deep Cycle AGM Batteries

The ultimate in Deep Cycle battery technology and performance, developed using state of the art manufacturing techniques and some of the most technically advanced materials available.

Century AGM batteries incorporate AGM (Absorbed Glass Mat) technology which acts as a sponge like material, suspending the loose electrolyte within highly porous glass fibre mat separators. This eliminates the hazards associated with acid spills and leaks whilst the sealed maintenance free design avoids the need for regular topping up of the electrolyte levels.

Century AGM batteries have a low internal resistance and low self discharge rate, enabling faster recharge and longer shelf life. When fully charged they are robust enough to be stored for extended periods of time and can be conveniently recharged using a range of standard chargers and the vehicles alternator. Century Deep Cycle AGM batteries are ideal for use in applications where fast recharge, improved vibration resistance and superior deep cycle performance is required. 

If your battery is not listed - please call us at the office (02) 4739 6111

Auto Electrical Services:

Mobile Auto Electrician / Pickup - Drop off 

Caravan electric brakes

Caravan solar / Portable Solar / Solar panel kits

Battery isolator installations

Caravan lights - LED 12volt

12 pin plugs / Anderson plugs

External 12volt power supply

Safety checks  

Caravan / Campers / Motorhomes

Replace existing lights with these LED Maintenance Free
Century Deep Cycle Gel Batteries

Century Deep Cycle Gel batteries utilise gel electrolyte technology which holds the battery plates securely in an immobilised gel, not liquid electrolyte, making them extremely robust, resistant to vibration damage and will not spill or leak when accidently tipped upside down.

The range is completely maintenance free, requiring no topping up of liquid electrolyte, whilst the valve regulated sealed design enables installation in confined, hard to reach locations. They offer improved recovery from a deep discharge or when temporarily stored in a discharged state and deliver longer cycles of power when compared with equivalent flooded Deep Cycle batteries.

Deep Cycle Range

Please click onto the below model numbers to view/download spec sheets:

Deep Cycle Gel Range