Giant Power 2x 120AH 12V AGM Deep Cycle Battery

SKU: DCK-12V-120AH-X2
On sale! 3% off, save $20
$678.00 $698.00
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 $169.50/fortnight, with instant approval online. Learn more

EOFYS 2020
EOFYS 2020


Dual Battery - 2 X 120AH Dual Battery Kit for Camping, 4WD, Boating, Caravans & Off Grid Solar Kits with Australia Wide Delivery


Save With Our Dual Battery Kit -You get  2 x Giant Power 120AH Deep Cycle Batteries and Cables with Australia Wide Delivery 

These 2 X 120AH 12V AGM Deep Cycle Batteries are high quality Deep Cycle AGM Batteries that are suitable for Camping, Saltwater/Marine applications, Caravans, Motor Homes and Camper Trailers. They are ideal ancillary batteries to fit into your caravan, 4x4 vehicle or camper-van. Our range of AGM Batteries have outstanding deep discharge recovery with high oxygen-recombination efficiency that ensures no loss of electrolytes, giving the 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.

We get asked a lot about Lithium Deep Cycle Batteries vs AGM Deep Cycle Batteries. Here are our thoughts on the topic - At present we believe that 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 ? Aussie Batteries experts firmly believe that an AGM Battery at say $269 will give our customers in present times a much better return on investment so you get more power for a better price with AGM Batteries!


  • A GAINT 120AH Battery will support most 12 Volt Setups and power requirements customers ask for.  
  • This 120AH is compatible with most major battery boxes 
  • Exceptional 5 Year Warranty
  • 12 Year Designed Service Life
  • Bolt Terminal Connections
  • In-house Warranty Testing Facility
  • Australian Owned and Operated Company
  • EXPERT ADVICE FREECALL  1800 853 315  or EMAIL 

This Package Features 2 X 120AH Batteries and the correct cables to link them up. You can link them in parallel giving you a whooping total of 240AH at 12V. Also if you wish you can hook up in series for a 24V bank with 120AH of storage using one of the cables. This kit is great value for those who are looking for bigger battery storage options. Need Expert Advice On Dual Battery Setups ? Freecall Now - 1800 853 315

  • 2 X 120AH Deep Cycle Batteries  AND 1 x Battery Linking Cable Set- Pair (Black and Red) 350mm Long

120AH Deep Cycle Battery

This 120AH 12V AGM Deep Cycle Battery Set 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 characteristic

Video Overview


When you’re away camping you need to know you have reliable power!  Getting reliable power when you are away camping is often one of the biggest headaches as you deal with working out the correct battery required to run items like fridge’s, 12V Lights, and other 12V / 24V accessories and items. Nobody wants food going off because they didn’t get enough battery power to run their fridge and camping setup!

Why not add a high quality battery box that will last for decades without aging or deforming and will keep your battery looking and functioning like brand new.

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

*Please note installing this battery under your bonnet or in electric golf buggies will void your warranty. More suitable battery types for these applications are CCA rated batteries. Need Expert Advice Please Call Our Team

Not the exact Battery you're looking for ? BROWSE OUR FULL RANGE OF DEEP CYCLE BATTERIES  With AUSTRALIA WIDE SHIPPING AVAILABLE - Need Expert Advice - Freecall Now - 1800 853 315




Giant Power 2x 120AH 12V AGM Deep Cycle Battery has a rating of 4.73/5 based on 11 reviews.

120A/H Giant agm deep cycle batteries

These batteries are very good value and are doing the job very well.Aussie batteries service and communication is excellent.

on 28 November 2020

2 x 120AH 12volt AGM Deep cycles batteries

The are great my slide on my motorhome has never worked so good plenty of power now

on 27 August 2020

Great service

Fast, easy to deal with service. Fantastic product.

on 29 May 2020

120 amp Giant deep cycle batteries

Good price & doing the job so far. Staff helpful.

on 22 April 2020


They working well and wondering how old they where before I got them thanks for prompt delivery to in difficult circumstances. Too early to give accurate star on how long they will last. Service and local aussie is great

on 14 April 2020
Write a product review


Giant Power 12V 120AH AGM Deep Cycle Battery
Nominal Voltage 12V
Nominal Capacity (20HR) 120.0 AH
Dimension Length: 305 ±3mm
Width: 165 ±2mm
Total Height (with Terminal): 222 ±2mm
Approx Weight Approx 27.0 Kg
Terminal F11
Container Material ABS
Rated Capacity 120.0 AH/6.00A (20hr,1.80V/cell,25°C)
Max. Discharge Current 1000A (5s)
Internal Resistance Approx 5mΩ
Operating Temp.Range Discharge : -20 ~ 60oC (-4 ~ 140oF)
Charge : 0 ~ 50oC (32 ~ 122oF )
Storage : -20 ~ 60oC (-4 ~ 140oF)
Nominal Operating Temp. Range 25 ± 5°C (77 ± 9°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