Solar PV battery options

Luckily my battery is in the garage so an easy roll in from pallet drop.

When should SOH start dropping on a new Fogstar/Seplos BMS 16kWh battery connected to a Solis S5 inverter , Its working well but the battery is less than 1 month old and done 26 cycles but SOH has dropped to 99.8%.. Is this expected or is there something wrong ? Thanks.

Hi, I’m looking to add a Dyness G2 10kw battery to an existing 3.6kw hybrid inverter. I had 2 2.4kw Pylontech batteries that have stopped working in the last year. I don’t have room for the Dyness where the Pylontech batteries were so I’m going to put it on adjacent wall that would mean approximately 5m of cables from inverter to Dyness. There’s a breaker with 80a fuses that were feeding the Pylontech batteries, would this be sufficient for the Dyness battery and what size cables would I need. Thanks.

I Want to get my father in law a 15kw battery and then he can charge on the cheap night rate and pay very little for his electricity throughout the year.
He has no solar setup so far, so he'd need an inverter and 15kw of batteries. My question what is the cheapest roughly he could get that for? Not a DIY job, but an inverter, 15 or so kw of batteries, that will load at 5kw per hour so he can fill them during the night on the cheap rate and all to be installed by a professional installer.
Are we talking , it's possible for 2-3k after grant or does grant not apply?

Thinking about a battery to avail of night rates but looking at my usage, January was the heaviest month using on average 43kWh per day. 31kWh was at day/peak rate. Am I correct in thinking I'd need a battery set up to at least store that amount to cover me every day?

Next question, what's the cheapest way to do that, possibly DIY.

Not sure about this supplier but I toke a chance and purchased from them they said 10days from Poland

Pre-assembled 16kWh 51.2V 314AH LiFePO4 Solar Syestem Battery Pack ,Bu – Deligreencs

Hi, I have a Solis Hybrid inverter and a Weco 5kw battery, I wanted to add another 5kw to the system but I am not sure if the inverter will accept two different batteries?

This is the Dyness battery I was considering https://www.nkon.nl/en/dyness-dl5-0c.html?_gl=11wgi061_upMQ.._gs*MQ..&gclid=CjwKCAiAw9vIBhBBEiwAraSATjRCM48fUFN5b7R9i1RFJZhCK68F1RD9OejhakcRpyQ0DuPYUjFsFRoCZLsQAvD_BwE&gbraid=0AAAAAD1QO9hf5kOEj4rfkOUh1rPE7OIV8

oh, thats interesting. All I know is its a Weco 5.3KWH.

Inverters will happily work with zero communication, by setting the battery up like a leads id, and allowing the inverter to guestimate the SOC%.

The most important thing is to determine the composition of the existing battery, since it could be 15s or 16s. Checking the voltage when fully charged will confirm it

I meant to quote this message in my last comment.

Deligreen also have this Seplos DIY kit offer… that appeals to me as I think it would be easier to build in the attic than trying bring 130 kg up the stairs and attic ladder….. Can someone more knowledgible please review and comment on this listing - Does EVE vs CATL matter?

https://deligreencs.com/products/poland-lifepo4-battery-48v-stacked-battery-kits-case-280ah-310ah-320ah-3-0-seplos-bms-2a-active-balancer-solar-d-eye-g-rowatt?variant=54869469200764

and this kit:

https://deligreencs.com/products/free-shipping-battery-box-51-2v-power-bank-lifepo4-3-0-version-with-active-balancer-built-in-bms?variant=54698503143804