Giantz 12V 9Ah AGM Deep Cycle Battery $29.95 Delivered @ Artiss Furnishings via Amazon AU

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Dyl on 06/03/2025 - 23:58 amazon.com.au (615 clicks)
Last edited 07/03/2025 - 09:51 by 1 other user

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Specifications:
Overall dimensions: 15 x 6.4x 9.2cm (standard UPS size)
Approx. weight: 1.86KG
Container material: ABS
Terminals: bolt-down
Nominal voltage: 12V
Rated capacity (10-hour rate): 9Ah
Maximum cycle lIfe: 1400 cycles (@30% DOD)
Minimum build life: 7 Years
Internal resistance: Approx. 7.6mΩ
Maximum discharge current: 660A (5s)
Maximum charge current: 13.8A
Operating temperature ranges:
Discharge: -15°C to 50°C
Charge: -20°C to 50°C
Storage: -20°C to 50°C
Capacity affected by temperature: 40°C = 102% | 25°C = 100% | 0°C = 85% | -15°C = 65%
Float charge: 13.5 to 13.8V
Equalise charge: 13.8 to 14.1V
Cycle charge: 14.4 to 15.0V
Self-discharge 3% of capacity declined per month at 25℃
Assembly Required: No
Number of Packages: 1

Price History at CamelCamelCamel.

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• 

  BargainGain on 07/03/2025 - 00:25

  Is it silly of me to ask if these can replace a 12v 9Ah SLA battery in a UPS?

  • 

    Dyl on 07/03/2025 - 00:34

    Not silly to ask, I had to google it

    AGM can replace SLA in UPSs yes, it's a type of SLA battery

    • 

      bamzero on 07/03/2025 - 01:06

      +1

      Yeh AGM is what would be in a UPS already, the term is pretty much interchangeable (though while all AGMs are SLAs, not all SLAs are AGMs)

• 

  FLICKIT on 07/03/2025 - 02:29

  Isn't this the normal price? (as per ccc) … There's a lot of similar batteries on ebay at this price and cheaper… i.e. https://www.ebay.com.au/itm/267033151364

  (specs are wrong also, they're not 'bolt-down' terminals)

  • 

    Dyl on 07/03/2025 - 02:43

    That's the last one on eBay

    It use to be more, maybe they've come down in price. Past deals are around the 35-40 mark. Last deal I could find: https://www.ozbargain.com.au/node/757103

    This is around the eBay no-name seller price, but backed by Amazon it's a deal.

    • 

      FLICKIT on 07/03/2025 - 02:48

      It looks like this has been the price since mid-Nov?
      https://au.camelcamelcamel.com/product/B0CN8RGYJJ

      • 

        Dyl on 07/03/2025 - 02:49

        Yeah, seen that too. It's decent for an AGM/SLA battery with a reputable store (ie Amazon) backing it though

      • 

        Dyl on 07/03/2025 - 03:06

        Did notice they don't have the typical data sheet, ie it's likely a budget brand.

        The Bosch one from other deal may actually prove better, it has a data sheet and is still 33.95

        https://www.boschaftermarket.com/xrm/media/images/country_sp…

        7.0 AH/0.35 A (20hr, 1.80V/cell, 25°C/77°F)
        5.13 AH/1.71 A (3hr, 1.75V/cell, 25°C/77°F)
        6.53 AH/0.653 A (10hr, 1.80V/cell, 25°C/77°F)
        4.26 AH/4.26 A (1hr, 1.60V/cell, 25°C/77°F)

        Specs kind of suck though compared to paying $46.10 for something like https://www.powerstream.com/BP12-12.htm

        12 AH/0.6 A (20, 1.75V/cell)
        11.4AH/1.14A (10hr, 1.75V/cell)
        10.2AH/2.04A (5hr, 1.75V/cell)
        .7.2AH/7.2A (1hr, 1.55V/cell) hour rate F.V.(1.55V/cell)

        As a UPS battery just for shutting down a computer, any will likely work

• 

  rainbowunicorn on 07/03/2025 - 10:20

  I'm always weary of giantz products, they seem to sell anything and everything. I've read many average to negative reviews regarding quality, not specifically this battery but worth noting.

• 

  loksmack on 07/03/2025 - 13:58

  Would these work for a ride-on mower? I know its deep cycle so probably doesn't have high cranking amps, but a single piston mower surely doesn't require too many amps. Anyone tried something similar with results?

• 

  Prong on 07/03/2025 - 14:37

  Avoid Giantz and similar brands IMO. I have bought various brands before to test and none of them meet the rated capacity.

  An easy way to tell they tend to include the correct weight. A quality deep cycle 9Ah battery is about 2.5KG, or higher.
  The Giantz one is 1.86KG. It does not have enough lead in there to actually meet the spec.

  It's likely no more than 6Ah at the 10 hour rate, not deep cycle, and liable to fail fairly quickly.

  • 

    Dyl on 08/03/2025 - 01:48

    Yeah no specs sheet is a bit suspicious, all branded ones have spec sheets showing their ratings at 1, 5, 10 and 20 hours. Usually the 20 hr rating is used

    The bosch one for $33.95 is probably better even though it's 7.2ah

    This is the cheapest just to get a UPS going again though, it's still enough to shutdown computer(s)