Bought a 100Ah Lithium for $399

[p38arover]

EDIT: I've moved this thread as the sale is over and there's been a bit of discussion about this.

As you can guess, I bought one.

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Jaycar are selling a 12v 100Ah lithium battery for $399 (allegedly $500 off, i.e., usually $899) until Sunday 22nd Oct.

12.8V 100Ah Lithium Deep Cycle Battery | Jaycar Electronics

[p38arover]

Dunno if I've done the right thing but I bought one today. My 2 x 45Ah deep cycle AGMs are pretty much dead so I plan to replace them with this. The problem now is how to charge it. I might need to replace my dual battery isolator.

[V8Ian]

Read the linked ad, Ron. You'll need a DC DC charger.

[V8Ian]

I'm a bit wary of these type of battery, especially entry level priced ones.

[drivesafe]

Hi Ron and for the price, they are OK.

From the specs, you should at least be able to get the full 100Ah when using it. A lot of other lithium batteries will only supply around 80% if you are lucky.

But the current limits are not that good. You could not power an induction cooker or a microwave oven.

The cycle rate is well bellow average.

And yes the only safe way to charge that specific battery is with a DC/DC device even though your L322 could have charged some other lithium brands direct from your alternator.

[Red90]

100Ah Deep Cycle Battery, Lithium Ion Batteries | Renogy Australia

[p38arover]

I'm a bit wary of these type of battery, especially entry level priced ones.

So am I. I agonised over it.

I’ve bought a Kings DC/DC charger that was on special. I have solar panels.

I only want it to run my Engel fridge plus some lighting. The AGMs I had used to be depleted too quickly.

[drivesafe]

So am I. I agonised over it.

I’ve bought a Kings DC/DC charger that was on special. I have solar panels.

I only want it to run my Engel fridge plus some lighting. The AGMs I had used to be depleted too quickly.

As you are not using it for high current applications, that battery should be fine for what you intend, just going to take much longer to recharge.

[drivesafe]

100Ah Deep Cycle Battery, Lithium Ion Batteries | Renogy Australia

Hi Red90 and that battery is not much better than the other battery.

They state their battery can be discharged up to 100 amps but that has nothing to do with the CONTINUOUS discharge rate.

[Red90]

Hi Red90 and that battery is not much better than the other battery.

They state their battery can be discharged up to 100 amps but that has nothing to do with the CONTINUOUS discharge rate.

Maximum Continuous Discharge Current 100A
Peak Discharge Current 300A@10s
Cycle Life(0.5C/1C, 25℃) 5000 Cycles (80% DOD 80% EOL)

These are as good as anything out there.

https://au.renogy.com/content/batter...12100-SPEC.pdf