Giant Power 4x 140AH 12V AGM Deep Cycle Battery

SKU: DCK-12V-140AH-X4
On sale! 33% off, save $536
$1,064.00 $1,599.80
In Stock (ready to ship)
Free delivery to most areas! Check delivery cost below

Buy now, pay later

Interest free instalments

Four equal payments of $266.00/fortnight, with instant approval online. Learn more




Check out our Bestselling 140AH AGM Battery Box Combo for a Complete Portable 12V Setup.

View Now

4 x 140AH 12V AGM Deep Cycle Batteries with FREE SHIPPING to most areas in Australia - Enter Your Postcode Above. 


Bestselling Australian AGM Battery SHOP OUR 4 X DEEP CYCLE BATTERY KIT and GET MORE POWER with 4 X 140AH GIANT POWER 12V AGM Deep Cycle Batteries 

When you’re away camping you need to know you have reliable power!  Don't let a flat battery ruin your trip! 

Use a trusted Aussie best selling battery! This 140AH GIANT  POWER DEEP CYCLE BATTERY will give you the best battery power required to run items like camping fridge’s, 12V Lights, and other 12V / 24V camping accessories! 

Our Aussie team know that nobody wants food going off because they didn’t get enough battery power to run their fridge or 12V caravan & camping setup properly!

Giant Power Batteries allow our customers to focus on enjoying the great outdoors and are the perfect battery for camping because of their high quality construction and superior Reserve Capacity (RC) or Ampere Hour (AH) rating that will meet or exceed your power requirements.

Advanced Deep Cycle Battery

Deep Cycle AGM Battery  Giant Batteries use Tier 1 corrosion resistant lead calcium internal plates and quality copper terminals.

Deep Cycle AGM Battery  Giant Power batteries will give users 2-3 times longer service life than other AGM Batteries (particularly substandard eBay batteries).

Deep Cycle AGM Battery  Add the Ardent Heavy Duty Battery Box and turn your Giant AGM Batteries into a multi-functional portable power station!

Best Deep Cycle Batteries OnlineTHE GIANT POWER -140AH AGM Battery is designed to give users a 15% quicker charge rate meaning your Giant Battery works silently in the background keeping the food fresh, 12V lights on, drinks cold, tablets or devices charged!

 AGM Deep Cycle Battery VS Lithium Deep Cycle Batteries  We get asked a lot about Lithium Deep Cycle Batteries vs AGM Deep Cycle Batteries. Here are our thoughts on the topic - At present lithium batteries for their cost won't give returns like an AGM Deep Cycle Battery in terms of the cost vs power output. So, like all new technologies we would rather wait till the customer is getting what they pay for in terms of power that is cost effective - if that makes sense ? So don't pay 400% + for the same power output just to get in front of new technology! Aussie Batteries experts firmly believe that an AGM Battery at $300 will give customers in present times a much better return on investment so you get more power for a better price with AGM Batteries!

Deep Cycle BatteriesDon't Waste Time on Inferior Battery Products that give No Australian Warranty Support:  Aussie Batteries experts know our customers need to have a reliable, resilient and dependable AGM battery backed by a Leading Warranty!

Deep Cycle Battery Reviews Whether it's for daily use or backup power, the GIANT POWER 140AH AGM battery is the right choice for you. Giant Batteries are not just backed by 'our words', they are TESTED everyday by our highly valued customers who are traveling around Australia and camping in some of the most demanding outback and coastal terrain ! - You can be guaranteed that our customers are repeatedly putting this battery through its paces! 

5 Star Deep Cycle Battery Review

Check out the 140AH Giant Battery Reviews Aussie Batteries Product Reviews they speak for themselves!


Learn more About the Product Features of the BestSelling Giant Power 140AH 12V AGM Deep Cycle Battery:  This is a high quality Deep Cycle AGM Battery that is suitable for Saltwater/Marine applications, Caravans, Motor Homes and Camper Trailers and most other power applications.

Need EXPERT BATTERY ADVICE  Call Our Team Today  1800 853 315.


 140AH AGM Deep Cycle Battery Benefit from Maximum Power Availability.

Giant Power 140AH Deep Cycle Batteries will remove your worry by guaranteeing that you have a reliable battery power source. Let’s look at the range of benefits to using a 140AH AGM Deep Cycle Battery to power your camping, caravan, boating and 4WD adventures. We talk to so many disappointed customers about their experiences with inferior products generally bought on eBay. The benefit of buying a Giant Power 140AH AGM Deep Cycle Battery is reflected in the solid 5 Star customer reviews we receive for this battery. Giant Power are dedicated to making sure that your AGM battery provides you with exceptional power and performance giving you maximum energy availability!

140AH GIANT POWER AGM Deep Cycle Battery  Keep your Camping Gear or 12V System Running Smoothly.

140AH GIANT AGM Deep Cycle Batteries are ideal ancillary batteries to fit into your caravan, 4x4 vehicle, camper-van, RV or other camping setup. The Giant Power range of AGM Deep Cycle Batteries have outstanding deep discharge recovery with high oxygen-recombination efficiency that ensures no loss of electrolytes, giving these batteries exceptional deep discharge recovery performance just in case you accidentally discharge your batteries a little too much! This also guarantees you will never need to replace electrolytes during the course of the batteries life.  

140AH Battery Need more power ? Run Giant Batteries in Series or Parallel.

Because of the rugged environments where Giant Power 140AH AGM batteries are used around Australia Aussie Batteries work closely with our customers to ensure our battery products are geared to meet your exact needs. A Giant 140AH can be connected in a series up to 48V or parallel four units to create a huge 560AH! (Best to talk to our experts for advice on the setup)

Bestselling AGM Deep Cycle Battery  A Best Selling AGM Battery  - Benefit from Proven Performance - Peace of Mind and Reliable Battery Power 

This battery is one of our bestsellers because owning a 140AH Deep Cycle Battery means that you can control and store solar energy for power. If you have a solar panel system you can use these batteries to store power and then use this energy to run a range of items. The reliability of 140AH Giant Deep Cycle AGM battery storage also means that you can use the power when you have bad weather or little sunshine. Having a battery backup essentially means you have a lot more control of how you use the power that your camping solar or 12 Volt setup is producing.

140AH AGM Deep Cycle Battery  Highest Quality Construction = Improved Performance!

Giant Power Batteries are built tough, and they are designed with more lead to create stronger connections between cells and heavier plates to increase the batteries reserve capacity. Giant Power Batteries are built to maximise life cycles, so you get reliable power every time!

Aussie Batteries FaceBook

**Drop by and say 'hello' - If you love Australia and enjoy camping, caravan, 4wd, boating and fishing and basically having a laugh and enjoying life ☺ then join us on FACEBOOK  and get all the perks of special exclusive offers and discounts so win-win for all our social followers ! 



Grab a Multi-Buy Discount

Get 2 x Giant Power 140AH Deep Cycle Batteries and FREE Cables.  Buy a Second 140AH Battery & Get FREE CABLES RRP $30

View Now

AGM Battery Overview


140AH 12V AGM Deep Cycle Battery Features:

yesSealed Construction (VRLA) means you can store our batteries at any angle. (All our AGM Batteries are completely sealed this means they can be stored at any angle)

140AHMaintenance Free operation this means no more refilling cells with water simply purchase and reap the benefits of a high quality AGM Battery.

140AH battery High Vibration Resistance means our batteries can withstand the toughest 4x4 conditions.

140AH batteryNon-Spillable and Non-Gassing with an in-built safety valve to keep you and your family safe by ensuring your battery is fully sealed and preventing any possible battery explosions.

12V 140AH Deep Cycle BatteryDurable AGM Plates: High purity, thick lead-calcium alloy plates ensure a long design lifespan of 12 years (for infrequent discharge @20°C).

140AH Deep Cycle BatteryCorrosion Resistant: Lead-calcium grids maintain a low self-discharge rate of approximately 3% of capacity per month.

140AH Deep Cycle BatteryQuality Copper-Silver Terminals means small contact resistance and high corrosion resistance.

Why the GIANT POWER 140AH is our Best-Selling Deep Cycle Battery

  • This 140AH Battery will support most 12 Volt Setups and power requirements our customers ask for.  
  • This 140Ah is compatible with most major battery boxes.
  • Industry Leading 5 Year Warranty
  • Giant Power 140AH AGM Battery has a 12 Year Designed Service Life
  • Bolt Terminal Connections
  • In-house Warranty Testing Facility
  • Australian Owned and Operated Company
  • 5 Star Reviews – Customer Reviews show the quality of GIANT POWER
  • EXPERT ADVICE FREECALL  1800 853 315  or EMAIL

140AH Deep Cycle Batteries 

140AH Deep Cycle Batteries for Caravans and Camping Best Prices

This 140AH 12V AGM Deep Cycle Battery is perfect for applications that require either frequent cycling or renewable power storage. Common uses include;

  • Running appliances when camping away from power.
  • Perfect for powering your 12V fridges, high powered inverters, lights or any other 12V appliances.
  • Excellent for use with a solar panel for charging.
  • Perfect for running in a dual battery system in a vehicle.
  • Superb for use in 4x4 and Marine Conditions.
  • Designed Service Life 12 years
  • Ideal for frequent cyclic discharge
  • Exceptional deep discharge recovery performance
  • Low self-discharge characteristics
  • We suggest adding a Battery Heat Shield for best results.

Giant Power 140AH AGM Deep Cycle Batteries are a premium quality battery that is designed to deliver industry-leading reserve capacities and life-cycle capabilities. Many innovative technologies, including a high AH ability and VO (heat resistant) rated case, make Giant Power Batteries the perfect solution for the challenging operating conditions of energy storage and other off-grid applications around Australia. The ideal combination of premium quality materials has catapulted Giant Power Batteries to becoming an Australian industry leader rated for both value and customer satisfaction. All Giant Power deep cycle batteries are backed with an industry leading 5-year warranty and have a 5-star status among Australian users because they can take a hell of a beating, both physically and power-wise.

AGM Batteries use glass mat technology within the battery to absorb the acid, as opposed to standard flooded batteries where the acid is free flowing. This provides several key advantages over standard batteries, they are also 100% sealed, non-gassing and maintenance free (this means your batteries will never leak acid, even if damaged), and they will provide a significantly longer service and cyclic life (up to 2-3x longer than standard batteries). If you want to run a remote power system, you'll need the right Deep Cycle Battery to keep the current flowing.

If you need reliable energy GIANT POWER 12V Deep Cycle Batteries are purpose-built specifically for these long-use applications. 

  A high turnover of battery stock ensures our customers are always getting the freshest battery

**Our 48hr dispatch guarantee is subject to receipt of payment. Excluding weekends and Public Holidays. We guarantee to dispatch your order within 48HRS of payment.

*Please note installing this batter​y under your bonnet or in electric golf buggies, mobility scoorters or using with trolling motors, may void your warranty. More suitable battery types for these applications are CCA rated batteries. Need Expert Advice Please Call Our Battery Team


Australian Owned Battery Company







Giant Power 4x 140AH 12V AGM Deep Cycle Battery has a rating of 4.95/5 based on 21 reviews.

very good

the best

on 25 February 2021

4 x 140ah agm deepcycle batteries

excellent I use them to run a large fridge

on 5 February 2021

Solar batteries

Delivered in time to the door Installed & working perfectly

on 18 October 2020

Solar batteries

Delivered in time to the door Installed & working perfectly

on 18 October 2020

All good

Good product good price

on 15 October 2020
Write a product review


Giant Power 12V 140AH AGM Deep Cycle Battery
Nominal Voltage 12V
Nominal Capacity (20HR) 140.0 AH
Dimension Length: 330 ±3mm (12.99 inches)
Width: 173 ±2mm (6.81 inches)
Container Height: 212 ±2mm (8.35 inches)
Total Height (with Terminal): 220 ±2mm (8.66 inches)
Approx Weight Approx 32.2 Kg
Terminal T11
Container Material ABS
Rated Capacity 140.0 AH/7.0A (20hr,1.80V/cell,25°C)
Max. Discharge Current 1200A (5s)
Internal Resistance Approx 4.9mΩ
Operating Temp.Range Discharge : -15 ~ 50oC (5 ~ 122oF)
Charge : 0 ~ 40oC (32 ~ 104oF )
Storage : -15 ~ 40oC (5 ~ 104oF)
Nominal Operating Temp. Range 25 ± 3°C (77 ± 5°F )
Bulk Charge Initial Charging Current less than 30A.
Voltage 14.5V @ 25oC
Temp. Coefficient -30mV/oC
Float Charge No limit on Initial Charging Current
Voltage 13.5V @ 25oC
Temp. Coefficient -20mV/oC
Capacity affected by Temperature 40oC (104oF) 103%
25oC ( 77oF ) 100%
0oC ( 32oF ) 86%
Self Discharge Giant Power Deep Cycle AGM batteries may be stored for up to 6 months at 25oC(77oF) and then a freshening charge is required. For higher temperatures the time interval will be shorter.


5 year battery warranty - 12 month full replacement warranty with 48 month pro-rata replacement warranty

For more information, please read our full warranty policy

Not sure what you need?
We're here to help!
  • Expert advice
  • Customised systems
Freecall 1800 853 315