Search results

I have tried to overload the inverter .....I can now see the variance between two arrays is ≈5A .....So may be my problem is storage......which means more dollars.... ......sick n tired of lithium battery prices

Dear Members, I am kinda frustrated with my two Chinese solar charge controllers which I have connected to charge same single battery bank of 400Ah Array 1 is 5kwp and Array 2 is 5.6kwp both are on the same roof similar direction and tilt. The problem is...When Array 1 charges at 40A Array 2...

I have two strings of solar array 5kwP each. Each string is hooked to two different solar charge controllers which are charging one same battery bank. Both chargers are doing fine. I have made sure these chargers have same charging settings (both float and bulk at 57.2v) My expectation is...

what is OP?

Let me find sometime this weekend to check..... Unfortunately I won't be at home until Saturday afternoon Thanks for a hint to check for

What is the reason for that?.... They are only 22months old

Hi everyone, My panels serve as a car shade. As I have just seen these wierd pink marks from below the panels. I would like to know if it is something to do with damage or water leakage. These panels are covered with a tempered glass at the top. It is mid day and it is really hot. Thanks...

Setting a business for audit in China is the only opportunity I am seeing it here

I tend to believe....if my battery bank is 400AH and my peak charging is hardly 40A. Stress to the battery should be almost zero and I should always recharge it to 100% whever possible

I have seen a model doing 4kw and 3.5k at peak, and similarly I have one which is always stuck at 2.8kw(max) from the same 5kw PV circuit I tend to believe air cooled are usually more effective than fan cooled Thanks

I have used several solar charge controllers in a same single PV circuit. They have been generating various levels of power. As the generation levels have been varying, I am inclined to believe there are several factors which lead to some cases I can't reap maximum benefit out of my PV investment

Ooh...I hear you, but I think that could work well with polar locations. I am very close to equator. Only 6 degrees South. So, now is the coldest time of the year, and am seeing the maximum 115v. My experience, tells me my voltage never goes beyond 118v throughout the year.

Hi, I always keep thinking of solar charge control which has a maximum PV voltage of 150V I have my panels in 2S5P. My 2S is giving me maximum of 115V.....I have 35V unused which I could have made my panels start generating at may be 5:30am or 6am Am I dreaming ? Any ideas are welcomed as I...

Moreover..... As float voltage = bulk voltage.... This saves alot of battery cycles as once the battery bank is full.... Even if it is 9am, the remainder of the day will be consuming PV power directly instead of charge/discharge cycles to get to a float voltage. I guess to my case this saves...

Great stuff.... congratulations. If there's no other limitations. I believe you can do it. Just make sure everything is genuine. Due to financial constraints I chose Chinese stuff. Never go for Chinese solar chargers....I learnt it in a hard way. Batteries and panels can be relied

What are you running for you to consume 100+kWh per day ?

I hear you.... Thats why am saying I will discharge them tonight

I have tried to recharge the battery bank with some caution..... So far I have just pushed in 18KWH and still hungry for more, it is 20KWH storage. Next test is discharging it, to see how much will be recovered

I have just learnt that you don't need to restrict yourself to 80%. I have been using 10yrs old CALB cells and I am currently doing almost 60% DoD. Still going strong on my 24/7 system

That's 4 Ok...I will try to set a maximum charging current as suggested. I am just thinking how many days it will take to get to 3V for a 400Ah battery bank

Yes...I have measured them. They are around 0.8-0.9V Is there a way I can recharge them back to 2V to bring them to life ?

I will be recharging them in next 5 days.... hopefully the SCC will be here by then....

It is sad and very discouraging.... The Chinese supplier will definitely jump into their usual funny conclusions.....

Terminals are pointing up

It was a maintenance day and unfortunately we exchanged polarity of the terminals from the battery to the charger and it went PUFFF. This is a PV SCC BMS has always worked fine at 55.2V Regarding temperature.... I am living in Dar es Salaam just 6degrees South of Equator which is always...

The battery bank is always outside my house in the cage where temperature is between 22C - 32C. No ventilation issues

Yes....the whole system was down charge controller disconnected and the inverter has been off

No.... The charge controller was removed from the circuit since day 1. So, the cells have swollen after the system stopped working. Before they were ok

Hi All, Disappointed and frustrated..... My charge controller broke down two weeks ago.... while I am in a process of getting another charge controller. I left my battery bank still connected but without load. I went on safari and just came back only to find my CALB cells have swollen...

Hi I am just thinking.... Putting a huge panel 8kwh all of them setup in xP and yS series but I want to make sure all of the circuit is looped into two or three smart solar charge controllers which will be parallel to each other connected to a single huge battery bank. The idea is to ensure...

Hi All, I am just wondering.....may the battery gurus can help me to understand. If a grade A lithium cell drops its capacity to 80% after complete 2000 fully recharge and discharge cycles. Say 100ah drops to 80ah. Is it right for me to assume this same cell dropping to 80% of 80ah will...

Hi, I am just wondering, when battery degrades to its 80% of its original capacity.....lets say 10Kwh degrades to 8Kwh. What will be the voltage of this battery if I charge it with 8Kwh of power ? Will the individual cells read 3.6v or 3.3v ? I have never seen my battery bank go beyond 53v...

How often do cells misbehave ?

Hi, I am running a 3kw inverter which shuts off at exactly 40V while my Solar Charge Control has maximum voltage of 58.4V which means it is 3.65V per cell. I am just thinking what is the additional benefit I may get for investing into a BMS instead of the active 16S balancer which takes care...