Recent content by perryfranz

Hi! Recently I had added some solar panels to my system and I have bought the Victron MPPT 150/35 instead going again with the EPEVER. Near me I have a Camper/caravan workshop that sells Victron components and it can give directly warranty repair, support and etc. Unfortunately he install...

Currently I’m repairing a “broken” Huawei Sun 2000 3KTL L1 that our installer (I work in a company that install PV in Italy) broke due to a inverted polarity on the PV input. We tried to ask Huawei to repair it, they had denied it and told to ask a third part company to repair it. We had sent it...

If you press the @Lifepo4 button on the "setting" page (after you have entered the password, so it's not something that you do intentionally) the BMS rest all the parameter and also the adjustment done in the past. So, lessons learned and now I will touch the parameter only if it will have a...

After the calibration I run the test suggested: At the beginning I had (on the BMS 26.86V) and it was connected to the inverter: - 5W Led lightblub - Killawatt meter (mine is a Meterk I bought from Amazon years ago) - electric heater (rated 2000W at 220V, it has over 30y, the label it's not so...

It was off of 1.09V, when the BMS was reading 28.15V the multimeter was reading 27.06V. Now after a week of charging and discharging the max difference that I saw was 0.11V average. Yes, i disconnected the inverter and MPPT (fisically from the battery) and then I had mesured everithing. Now I...

Now I’m still running the test. Before starting it I have read all the paper and notes that I have made when I built the battery in 2022. One of the notes were “set the correct voltage of the battery on the BMS before using it, it may be not calibrated and need to be adjusted” I took all my 3...

I’m thinking the same thing at this point, probably i have overreacted but it never happened before. Now I will follow the suggestion of @Steve_S and @740GLE to measure with another meter and the “kill a watt” to read the output. This evening i can take my time to run everything without any...

The AC unit is a Samsung dual split, the external unit is the AJ040NCJ2EG/EU max current is 900W for the external unit, each internal unit let say that consume 100W each one, so 1100W in total in the worst condition. I have ever see the machine draw over 600W. Never happened after a drying...

No, here in Italy we have 230V and the startup current is less than 1A (let say 2A) for the inverter unit (on off unit in Italy are out of market from the late 2000) and when the house is “well heated” it says on 150-200W. Inverter AC units do not have high current like the on-off one but it...

Hi! I have not tried yet to measure the cells with a second meter. The consumption are not high because this is a “secondary” system (I have already a 6kW + 10kWh on grid system for the whole house) and I run the laundry / ac unit. The AC unit (Samsung digital inverter dual split 12000btu) is on...

Hi! After 1 year of use my 24V battery with 8 LF280K + JK B2A8S20P has a strange behavior. When i was using my AC split for heating it stopped working because the BMS has shuttled down for under voltage protection. I thought because it has ended the capacity so i turned off the inverter and let...

Hello! in my house I had since 2016 this SMA sunnyboy 3000 powered by 12 solarworld SW 250 poly (250Wp) and this system has produced 27860MWh in it's lifetime (noth east of Italy) without ever a single failure. Now the region where I live, Friuli Venezia Giulia (FVG), has released 100million€...

Hi everyone! Some days ago i found out that my jkbms display was completely unreadable, but it was not a faulty bms or cable, just the display. JKBMS store on aliexpress was completely useless, they only considered to buy a new display, suggesting the bigger display, because the smaller one...

loved it, same as Italian and French car in the '90 (in Italy you can see many 600 or Punto with a Christmas three as back lights). But here the problem is pretty serious, in those car you could have only bad light or some check engine, not the car on fire.

Hi, to encreas the speed of charching batteries, I bought one of the cheapest bench power supply aviable on Amazon.it I used the Ningbo FTZ Hopewell DF1730SB3A with max output 3A 30V and it takes an eternity to charge the LF280K before the capacity test, absolutly a very good linear power supply...