Renewable stuff for sale and wanted

graememk · 01-01-2023 9:27pm

https://www.boards.ie/discussion/comment/120053522#Comment_120053522

Yep LiFePO4 (LFP) is the next step. wouldnt touch the leaf cells with a barge pole.

Pick up 48 of the 200ah cells, and you have 30kwh.

If changing inverters Id say look into the sunsynk ones... Keep the Standard inverter, and put any additions on the sunsynk.

slave1 · 02-01-2023 3:13pm

Agreed, 24kWh but was something like 22.5kWh useable, those cars came from the generation of free fast charging so would have been battered for years at 43kW charging without any active battery cooling, plus you'd have to shed them outdoors, you can double your current pack for much better value

randombar · 02-01-2023 3:56pm

Thanks for the advice guys, will look to expand the LifePo so.

Would you advise 2 BMS for the 2 lots of 10kw or would one do?

Also any place to get cheap optimisers?

graememk · 02-01-2023 4:41pm

https://www.boards.ie/discussion/comment/120055848#Comment_120055848

I'm running a 4p16s 😂 on one bms.

All the bms is really doing is making sure the cells don't get too high or too low. It doesn't really do much balancing.

To balance a balancer is much more effective eg 4 amps vs milliamps.

unkel · 02-01-2023 4:42pm

Technically it would be best to use a BMS for each string, then you can see the actual cell voltages. Most of us don't bother though and just use the one BMS with cells in parallel. Or none. Most BMS are crap at balancing, and that is what you need most. Your inverter does most of the protecting needed. Unless you want the BMS to control the inverter. Then you need one.

slave1 · 02-01-2023 5:18pm

https://www.boards.ie/discussion/comment/120055848#Comment_120055848

I've my 32cells in 2p16s, sitting at 4mV cell difference but I did top balance prior to "commissioning" into service

slave1 · 02-01-2023 5:19pm

Oh, and there are no cheap optimisers, gonna have to fork out for them

championc · 02-01-2023 5:46pm

https://www.boards.ie/discussion/comment/120055848#Comment_120055848

I've 2 x 16s with 2 BMS's interlinked, but the problem is that you cannot get any stats off the Master BMS, so I will shortly be changing my setup to 16s2p on a single BMS.

I initially built my setup enabling me to isolate either of the two strings, but I really cannot see a reason for ever wanting to do that, so going 16s2p will lose me nothing I feel.

randombar · 02-01-2023 11:22pm

Another 16 LiFePO4 so this year I guess.

I think there was a sale last year on the Oye store, hopefully there'll be another one. 1866 at the moment that's 600 more than last year! Yikes!

unkel · 03-01-2023 12:02am

https://www.boards.ie/discussion/comment/120057972#Comment_120057972

The only store with consistently good results is PWOD official store. I wouldn't buy from any other. Or buy anything else than the CALB 200Ah cells. The recent misadventure from one of the posters here causing a full dead short over the whole 16 cells, with only some minor burns and possibly not even permanent damage to the cells has shown just how good and safe these cells are.

As much as my budget / income is very limited, I really can't look past paying a little bit extra for these cells. For safety / peace of mind / longevity

This time last year I still only had 16 (10kWh). In about 6-8 weeks I will have 64 (40kWh)

silver_sky · 05-01-2023 2:47pm

Lora Antenna 868Mhz 3dBi on 3 metre cable with weighted stand/magnetic base - 20 euro

Located in North Co Dublin near Meath/Louth

This is a direct fit (screw-on) for the myenergi Eddi RF antenna and may be of use for someone experiencing issues with signal between the myenergi devices. I bought it last year for this specific issue but it didn't quite work out as I hoped due to my use case.

Here's where I got it - https://www.amazon.de/dp/B09N3NM7GV At the time it was 37 euro delivered, asking 20 as above.

unkel · 06-01-2023 9:08pm

PHEV battery pack wanted. Ideally a BMW pack out of a 530e / 740e, but any PHEV pack considered. Must be reasonably priced. If you have one or know of one, please let me know! Capacity doesn't matter, even around 7-8kWh is fine

It's for my car, the "Red Arrow" converted by Damien Maguire at a total cost of just €1,000. The car needs to stay true to its origin, so low budget is key here

https://www.youtube.com/watch?v=qR1y9947j-c&list=PLPHK4T9kKEyYxfC-4Jk70D6IfFSwsJQlh

unkel · 08-01-2023 2:04am

Myenergi hub for sale

https://www.adverts.ie/other-electronics/myenergi-hub/29018220

spose · 11-01-2023 2:38am

Anyone have a ct clamp for a solis they want to offload?

Galego · 20-01-2023 12:28pm

In case it may be of use for anyone here.

For sale battery rack cabinet. 50eur

It takes 3x Pylontech us2000 or 2x us3000

I am expending my battery bank so I need a bigger cabinet myself.

Collection in Dunshaughlin ideally.

Big Lar · 23-01-2023 5:44pm

Lot of talk about wind generation on the forum has prompted me to see this project which has been on the long finger with a while now

IstaBreeze 500W Wind Turbine

https://www.adverts.ie/other-home-garden/500-watt-wind-turbine/29156366

championc · 27-01-2023 5:56pm

Remember, if a CALB cell dies, the BMS will stop functioning because a cell voltage will be too low. So protect your investment by keeping a spare cell

https://www.adverts.ie/other-home-garden/1-x-calb-200ah-lifepo4-cell/29190348

unkel · 27-01-2023 6:07pm

Myenergi hub just sold, still have the brand new Solis inverter. Lots of people viewing on adverts, not sure what they are waiting for, this is several hundred EUR below retail 😁 Inverters are fairly hard to get now in Ireland as most wholesalers no longer sell to the public.

I know it's only January, but earlier today I was outputting over 4kW, today's total over 10kWh

https://www.adverts.ie/other-electronics/solis-solar-pv-inverter-5kw-brand-new/28917818

ELM327 · 30-01-2023 10:49am

Interesting. Wonder if I can parallel that with my existing 6kW solis? Cheap enough for what it is.

unkel · 30-01-2023 10:57am

https://www.boards.ie/discussion/comment/120176428#Comment_120176428

Yes of course. No need to parallel at all, this is just a dumb inverter doing its job, converting PV to AC. It needs to be connected into its own RCBO in your consumer unit, like any other inverter. Then your main hybrid inverter is the only one with a CT clamp on your incomer so it knows whether to charge your batteries (if you produce more than you use) or to provide power to your house if you are short.

I have 3 inverters myself (two dumb ones and 1 hybrid inverter). These don't talk to each other and are not connected to each other in any way, and don't need to (plus a 4th one, a micro inverter now I think of it)

If you have any other questions or want to discuss, ping me!

ELM327 · 31-01-2023 4:17pm

https://www.boards.ie/discussion/comment/120176464#Comment_120176464

Sent you a message there.

Ginger83 · 31-01-2023 9:47pm

https://www.boards.ie/discussion/comment/120176464#Comment_120176464

Forgive my ignorance but are you saying that you can have more than 1 inverter on the same pv system?

micks_address · 31-01-2023 9:56pm

If anyone is selling a givenergy battery, any size considered I'd be interested

Cheers,

Mick

unkel · 31-01-2023 10:35pm

https://www.boards.ie/discussion/comment/120184441#Comment_120184441

Yes indeed, you can have as many inverters as you like. But obviously one string of PV panels can only go into one inverter. I have a total of 7 strings when I'm done upgrading. Plus a single tiny 50W panel that I thought I might as well nail to the shed vertically west facing and grid tie it. Rather than it just sitting on a shelf somewhere doing nothing!

unkel · 31-01-2023 11:01pm

Active 4A balancer for sale

https://www.adverts.ie/other-electronics/active-balancer-4a-for-lithium-lifepo4-batteries/29229839

unkel · 02-02-2023 3:56pm

No one for the balancer? I thought it would be snapped up. Very handy for getting your cells in balance in a day or two if you can't bear the thought of top balancing them with a 3A bench power supply which will take at least several weeks if you have more than one set of 16 cells!

randombar · 02-02-2023 4:01pm

https://www.boards.ie/discussion/comment/120192462#Comment_120192462

Was looking at that all right, so will that work actively and you just leave it plugged in? Just wondering what the NEEY has that this doesn't have?

unkel · 02-02-2023 4:12pm

https://www.boards.ie/discussion/comment/120192500#Comment_120192500

Yep. NEEY is technically the same, but has bluetooth and an app, so you can change settings, etc. Nice thing about this one is that it doesn't use any connector plugs. You can screw the balance wires directly into those green terminals

championc · 03-02-2023 12:11am

https://www.boards.ie/discussion/comment/120166345#Comment_120166345

Last one remaining. Can post too for €13 extra

graememk · 03-02-2023 6:08pm

https://www.boards.ie/discussion/comment/120192500#Comment_120192500

Control.

The neey you configure via an app, set voltages when to start and when to sleep (eg only balance on the top end)

Have one in about 2 weeks now, I had a sorta balanced pack. And balanced it over a few charges, started with a relatively low max charge voltage, and was able to configure my bms to not reset to 100% too, so it would "float" the charge at that voltage,

Started at 55v and bumped it up 1 v every day,

Pack is charging all cells to 3.6 ish and even after 5ish hrs cells were still at 3.4,

Before, it dropped under 3.4 to a 3.3x quite quickly.

Very impressed with it, but I do have 2 leads from each (4p) cell, one for the bms and one for the balancer.

The balancer part of the neey hasn't activated in 3 days so far.

Renewable stuff for sale and wanted

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