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Lithium batteries to go with Axpert 3KW 24v unit

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Hi all,

I have been using Axpert 3KW 24volt unit for the past 8 years which is currently coupled with a set of 4 Trojan solar batteries (255Ah 6V)  I have been using almost every other appliance except for the  aircons , dishwasher and washing machine on the current set up with DOD close to 50% at the end of a 3 hour long load shedding during the evening.  I am planning to add solar panels and change the batteries to Lithium in the near future considering the frequency of the land shedding. I am eyeing Pylontech UP2500 in this regard. Any suggestions around this or any other cheaper but reliable brand will be highly appreciated? I am wondering if I would need two of these as I think the current set up would have been better with 8 batteries instead of four, considering that I use microwave and kettle frequently while on the inverter.

 

Thanking you in advance🙏

I was in the same predicament as you, and had to make the exact same decision. Pylontec UP2500 was on my list along with the Hubble AM-4. I pulled the trigger on the Hubble instead. The Hubble came in a couple of bucks cheaper than the Pylon, and it feels for me currently as if Hubble has become the go-to. Will be installing tonight. I have a 3kva Axpert type inverter, it came with Ecco gel batteries that did not last two months.        

I would not recommend the Pylontech UP2500 if you only intend buying one battery.  The 2500 is speced at a maximum discharge current of 56A (110A peak for <15 seconds).   I.e. it is a 0.5C battery.  You would need to use two 2500 or you would only be able to run your inverter to about 1.5KW.

I have a 2.5KW 24V Axpert and have been using a Hubble AM-4 for about 3 weeks now.  So far so good.  The Hubble is specified for 100A max discharge current.

As someone else pointed out on this forum one or two days ago, if the budget is tight you could consider 2x Mecer Second Life 12.8V 200Ah.  https://www.mecerpc.co.za/Mecer-SOL-B-L-M200-p-239794.php  These batteries are also only 0.5C but being 200Ah, will run at a max continues 100A discharge current.  You need to see what is available.

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