Colin Says

These are my thoughts and Reading through youre original question and situation. You are buying 2nd batteries because of affordability and maybe availability - I know the feeling. My initial install started with a 24V Axpert inverter and 2 x Telco 2nd life batteries I picked up. And luckily they gave me a good 3 years +. {being totally off grid) When I started you could not buy panel combiners and battery isolators etc off the shelf, and Lithium were not even in SA My 2nd replacement set made me realise why the original owner needed to sell them, forcing me to acquire a tester to show soh/soc. Being able to read the batteries abilty is really needed. ! Shorting the terminals is not the test ! Now being out of money and a system working partially into the evening - I split my circuit. Added in a cheap PWM charger and ran in parallel with inverter, using my first set of batteries (in parallel) to give a 12V circuit. And this handled my security side and a bit more. Cameras / Router / 12V LED lights and now SV smart switches straight off the battery. Now I could switch on and off the inverter and lights from remote location. And Ohms law 50W of devices on a good 100 Ahr battery should last 25 hrs. BUT the rules change with batteries in unknown. In Youre situation I think you can afford to take 1 panel off each series string and seperate youre circuit. 7 panels in series totals 280V maybe too much. Then - do you need 48V 6 KW system or could you swap youre inverter to 24V 3KW. With this you could now rotate batteries to find the most reliable ones. and really when desperate 24V of batteries is easier to get to when failing. Bottom line and lessons learnt, one bad cell pulls a battery down, and one bad battery pulls a string down. And when a bad battery is under charge or being equalised will read its voltage, as the other cells are over bubbling. But then off charge it idles - takes a load and collapses. And at a temp of zero - it just collapses faster.

Item: Kodak AKA Pylontech Usage: To Build up a battery bank - The Spare parts/Repairs My View/Understanding : Control unit to add on multiple 3.5KVA battery banks Max 7 Age:Not sure Shelf Price seen around R7000,00 Asking price : Offers around R1800.00 Payment Method Accepted:EFT/COD Warranty:None known of Packaging:Original packaging (open unit) Condition:Unused - Original Location: Jhb North Eastern suburbs Reason:Bought in error - I thought it came with 1 x Battery bank Shipping: Use of Courier Collection: Accepted/prefered Link: Advert with Specs https://www.pikaled.co.za/product/kodak-force-l1-bmu-with-base/ Required battery https://www.pikaled.co.za/product/kodak-force-l1-li-ion-battery-35kg/ https://www.apexmart.co.bw/shop/l1-batt-kodak-3-55kwh-battery-force-l1-li-ion-6527?product=product.template(6527%2C)

DMAC took advantage and collected them - Gone

DMAC took Advantage - Good luck and I hope they work for you

Ive had a desire (Not the time) to get into home automation, read my batteries and communicate with my inverter, so started researching, and thanx to this forum found some answers and how to. So I pulled out my Link sprite, bought some Tuyo switches, a bit of zig bees, mixed in my 403 Mhz and 433 Mhz's, dusted off my arduino and looked for Raspberry Pi, No one had stock, and the ones that had 2nd hand were asking prices double the value. Everything went into a bag, and thrown into my sock drawer. New hobby..... I started looking for a 3d printer, and bang found raspberry Pi 4 back in stock at the PiShop.co.za. I await my delivery and ....... more time

I Dun this

Hi also have an interest, are they available ?

Hi Stefan, At the moment I dont't know where this is going to go. The guys who supplied them seem to have a want or need if being usable. Cant make promises for now.

This Particular battery was 12 V when received, on average the cells read 3.0V. So my next thing is to charge the individual cells to see their ability. Other battery packs are between 6.0V and 10V. My Next thing is to look for a tester/meter that can give me more informative results. SOH/SOC/AH/ not just Volts and Percentage. My readings tell me of a Raspberry Pi device. Ill post in classifieds. The Battery as a complete unit is rated 55 AH . Total of 8 cells packed 4s2p. So 3.2v x 4 =12,8V and 4AH x 2 = 8AH. BODMAS not working here ? Thanx for the input I think even those Lithium packs at Builders/Leroys/China are rated 9 to 12AH, but yes packed in the std 7ah housing.

I have the VZ-3524P-FS Manual , which model are u wanting ?

Please specify the Model, I can help with VZ-3524P-FS Manual

Hi Johan I am stuck with same problem on FiveStar VZ-3524P-FS inverter : Read in posts to use 1. The software Licence No 511C1-01220-0100-478DF2A (Seems to be generic) 2. Administrator 3. Serial number of Inverter All have failed My second is I can not communicate inverter to the Fivestar 24/100 battery : And I can not find the pin outs for the inverters RS485 port. I have got the Pinouts for the battery, and the supplied straight through network cable does not work.

Waiiiit. RJ45 - Once a standard for cat 5 Network communication. Then adding Power over ethernet added, Now rs232 then RS485 then Can-Bus then remote switching, then combinations of RS232/RS485/Canbus and seeing positive +12V and or +5v . all in a 8 wire termination. And I still dont understand Earting (1 wire) on a DC system

While we do live in a city with various trees and shrubs and Roses, we gotta look back and appreciate that JHB is the biggest urban forest that we/ancestors have created for shade and wind breakers. In youre banner pic shows trees going up to roof height. but not showing the taller ones shadowing on youre panels 80 % maybe. Were we right then to plant trees, as it once was grassland. Or are we right now to utilise the sun. ? Its a big, big thing as to growing vegetables hydroponically, and growing vertically. I made a decision going solar, and I live on one of those Jacaranda streets. Having that and a Lovely Palm decided Solar. And was lucky enough to cut my Jacaranda before it become a heritage/protected tree. I dont have to clean up after it any more. My plum tree now fruits. Not sure by "might help someone" Oxygen? Plants use it ? And give it ? Walk into a room of a herbal grower. Its hard to breathe after half an hour. So is the Tigo TS04 optimiser realy necessary.?.