Most reacted posts

Hi, Just setup my system: 15 420w Jinko Solar Panels 5kW Sunsynk Hybrid inverter Seplos Mason 48V 14.3kWh battery with 16 Grade A V3 LF280K EV BMS setup advice thanks to @houseofancients Has been supplying house for 8 days , all looks to be running fine - using Octopus agile tariff & daily...

Ha Ha I get it :) Hopefully my last post may not be ?

At the minute I am at the fist stage of top balancing, once I actually get my head around what cables I will use :)

Hi, Just to add my experience. I had a distance of approx. 30m to cover & was looking at a similar solution. I did have a cat 5e cable spare running from the house to the shed. I wired up the CT & it is responding fine. In all a total cable distance of 35m Sunsynk 5kW with 15 Jinko 420W...

Hi, I had a similar issue in connecting my PC to BMS v3. Was trying the RS4851 port, had a cable from Fogstar - didnt work Ordered the WINGONEER USB 2.0 to RS485 Serial Converter Adapter Wired that up as per this post - still no joy. In the end out of pure frustration I just plugged into the...

I will look into these values & understand their exact meaning & then move forward. Only been on this journey since March, so a very steep learning curve. Thanks

Currently my Float V & Absorption are set to 56.7v on Inverter Equalisation the same (is this a requirement for LifePO4) Looking at Sunsynck Connect my voltage at 95% SOC is at 53.5v, so cell voltage is low. When solar puts up to 100% SOC my voltage goes as high as 57.9 as below: So I will...

These are the settings from my BMS. Not sure if I want BMS or inverter to control battery pack at the minute. The NEEY is already set as stated. Thanks

Hi, As title suggests I have assembled a Seplos battery pack with a v3 active balancer. Just waiting on cable to setup up BMS & a few cables for my Sunsynk 5kW inverter. I was recommended to use a Neey 4A Active balancer, this was before I realised I had one on the Seplos system I have...

From what I have read its best not to hit max every time with these cells. Obviously I may be wrong :)

yes it is via Canbus

Simple, I live in the UK, we have no sun at the best of times :) The energy supplier we use has a low cost tariff in the morning hours, typically between midnight & 5am. The smart meter we use has 30 min time slots - this morning majority of the early slots were a minus per kW As you can see...

Sorry, you mean set my BMS overprotection to 56v. I will check what it is when I get back home. I thnk I did change the over voltage protection, but will double check, when back at home in the morning. Thanks for your time

Morning, Thought I would fire the setup again this am. The battery pack took charge - went from 1.9 to 97.2% SOC (within 4 minutes) hit an over voltage alarm & stopped again Looked back at the system mode settings and the initial one I HAD SET TO CHARGE BATTERY TO 100% WAS AT 20%. I Reset that...

Not sure what a Tldr is - but I think it was down to my unfamiliarity with the remote settings, I have a better understanding, so I am now using the connect software to set my inverter up.

Think I have found the issue - https://powerforum.co.za/topic/18448-sunsynk-5kw-settings-not-sticking-assistanceadvice-please/ Just in case anyone else has this issue.

Currently top balancing my battery pack before discharge. The one thing I am unsure of is that the total current is still @ a minus figure. Do I need to keep feeding the pack to get that to zero? The cell deviation has gone from 274mV to what is above now at 4mV within 8 hours. Currently...

I will be trying both, but have been advised NEEY is better

Hi, Had my system running for a year now. Sunsynk 5Kw Inverter 15 x 420w Jinko Panels 14.3kWh Seplos Mason Battery LF280k Cells with V3 BMS. NEEY Active Balancer Trying to keep in with other installs views about Cell Voltage. Had set mine originally with guidance from houseofancients...

Hi, I am very new to this so please bear with me I have purchased 15 x 420Wp Jinko panels & currently looking at Solis 6kW or Sunsynk 5kW inverter. With the 15 panels with Voc @ the coldest last year that equates to 41.81v equals 627 volts Max capacity on the 2 Hybrid Inverters I am looking at...

Hi, Hope you can help. Setup my Sunsynk 5kW with Seplos 280 aH with v3.0 bms Inverter came on, battery pack started charging, then for some unknown reason went into standby. But the inverter is still showing a 2kW pull from the grid, battery is showing a -2kW reading. BMS Studio is showing...

Thanks for the feedback. I will try to understand these more to expand my knowledge.

I was looking at the custom view on Sunsynk Connect app as below. Only showing the Battery Voltage, SOC & BMS Voltage. Is there an explanation for the discrepancy between the BMS voltage & the Battery Voltage? Is this a natural variation taking battery temp & compression into account.? Or is...

HI, Are there any issues glaring out regarding the BMS settings? Thanks

Thanks for the replies, so just to move to next concern. Am I right in thinking I would be able to reduce the length of some of the NEEY balancer wires? Just so that it doesn't look like a jungle in the battery box?

Hi, Had this fault pop up on my app this morning - F55 - DC_VoltHigh_Fault Looking at battery voltage it had shot up to 62.6V - Inverter is connected to SEPLOS Mason LF280K - BMS Over Voltage Protection is set at 56.80 - connected via CAN The alarm has now cleared - anyone else had...

Hi, Currently fitting my solar panels on shed roof. The solar panels are sitting 110mm off the roof. Question is when I am connecting the panels up Whats the best position for an mc4 connector. I was thinking of fastening them on the underside of the panel, in the channel. Any advice...