Jump to content

Recommended Posts

That  battery is good for 35A at around 50V, or about 1.7kW. So as long as you stay under that, you don't need another battery (that of course means the full 5kVA rating of the inverter will never be used). At 400W, plus the roughly 50W or so self-consumption of that inverter, times 4.5 hours, plus a bit of a fudge factor since inverter is not 100% efficient, you're looking at around 2.2kwH discharged from your 3.5kWh battery, or 60% DoD. So it looks okay to me.

Edit: Well, I may be a bit hasty in saying you'll be fine. The inverter maker wants a certain amount of battery capacity installed, usually, and this is not only about how much current you can reasonably draw, it would also sometimes be necessary to keep things like ripple down. Also it may affect the warranty. Technically I think you'd be fine, but I'm only about 85% sure 🙂

Edited by plonkster
Link to post
Share on other sites
1 hour ago, Shockin said:

Thank you,should i go for another US3000 at R20 k or a US2000 at around 15k? 

I'd go for the US3000. The smaller battery has 2.5kWh storage, of which ideally you should use just 80% or so, and as you can see from the quick number I calculated... you're either going to run out or discharge too deeply each time with the US2500. Go for the larger one, or two of the smaller ones (that would be even better, of course, but carries an extra 10k price tag).

Link to post
Share on other sites

Am i understanding the specs correct for the pylon us3000. The recommended discharge is 37A but can go to 74A and still be within the warrantee of the battery, (74A with say 48V battery = 2550W) It should be able to run a kettle of similar watts without problems?

Link to post
Share on other sites
3 hours ago, Gerrie said:

recommended discharge is 37A but can go to 74A and still be within the warrantee of the battery

Correct. Most LFP batteries can handle 1C discharge without a problem, but recommended is C/2 (half that). A kettle takes about 5 minutes or so to boil water, so this should be okay I'd think.

Link to post
Share on other sites
17 minutes ago, Shockin said:

So  had to do some sneaky work so wife doesn't find out but I am now the owner of two pylontechs US3000 batteries, now to start putting everything together 

Dude... I once saw a motorcycle advertised on gumtree. Beautiful machine, almost brand new. The seller explained that his reason for selling is that apparently "Do whatever the f... you want" doesn't mean what he thinks it does.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...