12.8V 100Ah Lithium Deep Cycle Battery $399 (Was $899) Delivered ($0 C&C/ in-Store) @ Jaycar

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Lozsnowman on 19/10/2023 - 11:02 jaycar.com.au (1708 clicks)
Last edited 19/10/2023 - 11:24 by 2 other users

4 day Spring sale at Jaycar has this battery down from $899 to $399. Cannot comment on how good it is, but generally Jaycar is better than eBay IMO.

Their info: This 100Ah model can provide continuous current up to 50A, with peaks of up to 100A. It’s not suitable for a primary vehicle starting battery, however is absolutely perfect for house batteries, backup batteries, and virtually any other application where you would typically use a large lead acid / AGM battery.
Battery Peak Current
100A
Internal Resistance
60mΩ
Battery Chemical Composition
Lithium Ferrous Phosphate (LiFePO4)
Battery usage
Bulk Storage
Peak Discharge Duration
5sec
Amp Hour Rating
100Ah
Continuous Current
50A
Type of battery
li-ion
20 Hour Capacity
100Ah
Connection Type
M8 Bolt/Nut
Nominal Voltage
12.8V
Cut-Off Voltage
9.2V

Related Stores

Jaycar Electronics

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    team teri on 20/10/2023 - 13:39

    +1

    Many a lead acid battery has blown up. During charging they give off H2 and O2 in just the right proportions to make a very explosive mix if not ventilated properly. Hence the quite onerous requirements when installing battery banks…

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  SirFaffer on 19/10/2023 - 23:51

  Bare in mind that its only a 0.5c discharge battery. For about $700 at altronics you can get a 1.0c 100ah lithium.

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  Gimp on 20/10/2023 - 07:47

  Do you need a special charger for these batteries?
  I have a ctek 15amp charger…

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  harry2008 on 20/10/2023 - 09:21

  Hey guys, just a newbie question. How do we charge these batteries? If we do meed a charger, how much does a decent charge cost?

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    dingaling2 on 20/10/2023 - 12:23

    Can get away with a regular 12V car battery charger used for lead acids as the voltages line up enough for lifepo4. Also the BMS in the lifepo4 battery will protect the cells. But worth noting unlike Lead acid batteries, LifePO4 don't particular enjoy being kept topped up at 100% state of charge for long periods, it will make them degrade quicker. Other wise they last for ages, mine are now 10 years old have only lost 10% of there original capacity.

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      team teri on 20/10/2023 - 13:25

      What brand do you have? Your experience is as it should be, but a cheap BMS that doen't properly balance the cells can kill them a lot quicker, hence the much shorter warranty for many brands.

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        dingaling2 on 21/10/2023 - 19:46

        Well my ones are just made with the bare LFP cells and my own BMS that just switches off an inverter/charger. Balancing with other devices (not a sleek all in one unit) its for off grid. But your totally right a cheap bms that cant keep the cells balanced isnt good. Although it may just show up as quickly diminishing capacity as the cells drift apart and trigger shut off early. With proper balance would restore that "missing" capacity. Not sure what sort of bms is in this jaycar battery. Prob something not that great…

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  Naigrabzo on 20/10/2023 - 14:29

  Can you use this to run as backup power supply for my home security cameras? ;)

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    dingaling2 on 21/10/2023 - 19:49

    +1

    you could in one form another. only thing is lead acid batteries are better for keeping at 100% charged and at the ready as failover backup power. LFP superior in every other way except not good to leave them at 100% charge waiting for failover.

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