NewStats: 3,262,017 , 8,175,895 topics. Date: Saturday, 31 May 2025 at 03:05 PM 421m46

Valto:
perfect installation!
please your order today, we can waybill /deliver to any location in Nigeria and west Africa.

Ride on bro
West Africa, cool.

The RCV should be higher than the RFV.

What's the SOC 100% voltage?
Also confirm the RCV and RFV time.

Dam5reey1:


Was set as per manufacturer's recommendations..
27.8V CV and FLV and 24V CUV

Nice installation, I love the new cube battery box design.

I Sha still prefer the rectangular design

Valto:
perfect installation!
place your order today, we can waybill /deliver to any location in Nigeria and west Africa.

obitobe:
Their new rebranded charge controllers are quiet troublesome. Seen people complain about it.

Gbam! You just nailed it!

I took my time today to do a research and realized that people are complaining of the same issue. I just weak.

And guess what, there is no fix for it.

Ferdiwar:
The RCV should be higher than the RFV.

What's the SOC 100% voltage?
Also confirm the RCV and RFV time.

This will be too complicated to explain to client. We didnt not enter BMS settings.
We just working with recommended charge and discharge voltage given.

I coupled my cells with jk BMS and what you mentioned is true. At times my BMS will read 99% and 30a plus will still be charging the battery with 0.006 cell voltage difference. Just like you mentioned, s need to pay attention to pack voltage not just the battery percentage especially when one of those cells don't trigger the BMS HVD which will recalibrate the BMS. I didn't use jbd long enough to know if that's same with them. Jbd or Daly s should let us know if they experience such.

Dam5reey1:


This will be too complicated to explain to client. We didnt not enter BMS settings.
We just working with recommended charge and discharge voltage given.

I think jbd rely majorly on pack total voltage rather than SOC

Jefferyzz:
I coupled my cells with jk BMS and what you mentioned is true. At times my BMS will read 99% and 30a plus will still be charging the battery with 0.006 cell voltage difference. Just like you mentioned, s needs to pay attention to pack voltages not just the battery percentage especially when one of those cells don't trigger the BMS HVD which will recalibrate the BMS. I didn't use jbd long enough to know if that's same with them. Jbd or Daly s should let us know if they experience such.

Dam5reey1 clearly stated that his post is for educational purpose only.
Besides everything he said there is totally true becus i experienceed it with one of my lithium batteries just last week. The battery was barely getting to 100% SOC daily due to undersized s and a high dust in the area.
Last week, the inverter cut off power, beeping low battery bt the display on the battery was at 48% SOC and i was surprised.
I called Valto whom i got the battery from and he told me to charge the battery until it stops receiving current and also to ignore the display on the battery even if it is showing 100% and charge the battery until it stops taking current that the BMS will recalibrate itself. I did exactly as he instructed and everything is back to normal. The BMS has recalibrated itself.
I believe Valto didn't explain all the details that Dam5reey1 went into in his post with me becus he knows I jst wanted solution and not explanations.
And before you say I am being biased myself, Valto is my plug for lithium batteries. I hav bought over 6 batteries frm him. Three (11.7kwh, 14.3kwh and 16kwh) batteries personally for myself, and more than 3 through my recommendations to my friends and installer). And all are performing excellently well.
Infact, I am planning to buy another 16kwh battery from him for a friend next week.

PS- I have oversized my s in that location and my battery gets fully charged every day now.

brightk:
if u want to discredit someone,please do it in a way no one suspects u of been envious.......

Jefferyzz:
I coupled my cells with jk BMS and what you mentioned is true. At times my BMS will read 99% and 30a plus will still be charging the battery with 0.006 cell voltage difference. Just like you mentioned, s needs to pay attention to pack voltages not just the battery percentage especially when one of those cells don't trigger the BMS HVD which will recalibrate the BMS. I didn't use jbd long enough to know if that's same with them. Jbd or Daly s should let us know if they experience such.

I currently use the 100Balance BMS(Daly), I am experiencing same.
So I ensure I charge to trigger 100% once the drift is more than 5%, as I also use the KM Junctek Shunt based Coulumb counter.

I have a lithium battery with JBD BMS that I have been using for around 1yr now.
The issue with the JBD BMS is that the SOC reading on the BMS keeps dropping down from 100% even tho the battery is fully charged until you "reset capacity" on the BMS settings.
To fully explain, let's say the battery SOC is at 100%, in 3 days time, it will stop at 95%. In a week it will be at 90% and so on. It will keep dropping even tho the battery is getting fully charged every day.
One time I jst ignored it to see if the drop in SOC will stop at a certain % bt I had to reset the capacity wen it dropped below 80%.

Jefferyzz:
I coupled my cells with jk BMS and what you mentioned is true. At times my BMS will read 99% and 30a plus will still be charging the battery with 0.006 cell voltage difference. Just like you mentioned, s needs to pay attention to pack voltages not just the battery percentage especially when one of those cells don't trigger the BMS HVD which will recalibrate the BMS. I didn't use jbd long enough to know if that's same with them. Jbd or Daly s should let us know if they experience such.

princely009:
Dam5reey1 clearly stated that his post is for educational purpose only.
Besides everything he said there is totally true becus i experienceed it with one of my lithium batteries just last week. The battery was barely getting to 100% SOC daily due to undersized s and a high dust in the area.
Last week, the inverter cut off power, beeping low battery bt the display on the battery was at 48% SOC and i was surprised.
I called Valto whom i got the battery from and he told me to charge the battery until it stops receiving current and also to ignore the display on the battery even if it is showing 100% and charge the battery until it stops taking current that the BMS will recalibrate itself. I did exactly as he instructed and everything is back to normal. The BMS has recalibrated itself.
I believe Valto didn't explain all the details that Dam5reey1 went into in his post with me becus he knows I jst wanted solution and not explanations.
And before you say I am being biased myself, Valto is my plug for lithium batteries. I hav bought over 6 batteries frm him. Three (11.7kwh, 14.3kwh and 16kwh) batteries personally for myself, and more than 3 through my recommendations to my friends and installer). And all are performing excellently well.
Infact, I am planning to buy another 16kwh battery from him for a friend next week.

PS- I have oversized my s in that location and my battery gets fully charged every day now.

checkout the meaning of constructive journalism and u will understand my point of view. Did he care to explain the root cause of the issue and proffer solutions to it? SOC drift is not a new thing in the batteey industry. It even happens to professionally coupled packs. His post portrays the view of a bad pack from the seller

Please @all, i have a little problem with my battery. They are 2 pieces of 10kwh lifepo4 connected in parallel, when being used, they dont drain uniformly, one battery could be at 87% the other at 95% . Is this normal?

Bros you just said the truth, when you undersize the you likely experience things like this that is why I rely on the voltage rather than SOC. Once your s are well sized and your battery get full everyday the BMS will always recalibrate.

I equally use Valto's battery and I have never experienced this because I sized my s very well.

princely009:
Dam5reey1 clearly stated that his post is for educational purpose only.
Besides everything he said there is totally true becus i experienceed it with one of my lithium batteries just last week. The battery was barely getting to 100% SOC daily due to undersized s and a high dust in the area.
Last week, the inverter cut off power, beeping low battery bt the display on the battery was at 48% SOC and i was surprised.
I called Valto whom i got the battery from and he told me to charge the battery until it stops receiving current and also to ignore the display on the battery even if it is showing 100% and charge the battery until it stops taking current that the BMS will recalibrate itself. I did exactly as he instructed and everything is back to normal. The BMS has recalibrated itself.
I believe Valto didn't explain all the details that Dam5reey1 went into in his post with me becus he knows I jst wanted solution and not explanations.
And before you say I am being biased myself, Valto is my plug for lithium batteries. I hav bought over 6 batteries frm him. Three (11.7kwh, 14.3kwh and 16kwh) batteries personally for myself, and more than 3 through my recommendations to my friends and installer). And all are performing excellently well.
Infact, I am planning to buy another 16kwh battery from him for a friend next week.

PS- I have oversized my s in that location and my battery gets fully charged every day now.

Wahala for who get time for bms.
What is now the function of editable Inverters where low/cut off voltage can be set?

kristien4:
Please @all, i have a little problem with my battery. They are 2 pieces of 10kwh lifepo4 connected in parallel, when being used, they dont drain uniformly, one battery could be at 87% the other at 95% . Is this normal?

Same brand?

kristien4:
Please @all, i have a little problem with my battery. They are 2 pieces of 10kwh lifepo4 connected in parallel, when being used, they dont drain uniformly, one battery could be at 87% the other at 95% . Is this normal?

Increase the size of the parallel cable or use a busbar to do the parallel.

Valto:
perfect installation!
place your order today, we can waybill /deliver to any location in Nigeria and west Africa.

I dey here well in the way to kwale nau

Kindly share pictures of the BMS settings.

Jefferyzz:
I coupled my cells with jk BMS and what you mentioned is true. At times my BMS will read 99% and 30a plus will still be charging the battery with 0.006 cell voltage difference. Just like you mentioned, s need to pay attention to pack voltage not just the battery percentage especially when one of those cells don't trigger the BMS HVD which will recalibrate the BMS. I didn't use jbd long enough to know if that's same with them. Jbd or Daly s should let us know if they experience such.

brightk:
checkout the meaning of constructive journalism and u will understand my point of view. Did he care to explain the root cause of the issue and proffer solutions to it? SOC drift is not a new thing in the batteey industry. It even happens to professionally coupled packs. His post portrays the view of a bad pack from the seller

You are reading with emotions, not with clear mind.

I stated the root cause in my post and solution what client should watch out for so people dont see it as a problem.

Here we are sharing knowledge whether is your favorite brand or not.

Before now, I was attacked for not showing workings.
Now I will post add proofs.

dollarnaira:


Same brand?

Yes..same brand, same capacity.

If the imbalance is consistent on a particular battery try below suggestions.

1. Confirm that the battery cables are tightened firmly.
2. Ensure that the parallel cables (between battery 1 and 2) are of same length and also the same size with the cables going to the inverter/CC.
3. Connect one cable from the inverter/CC to battery 1 and the other cable to battery 2.
4. If the batteries are from same manufacturer and same model connect the communication cable and configure them accordingly.

kristien4:
Please @all, i have a little problem with my battery. They are 2 pieces of 10kwh lifepo4 connected in parallel, when being used, they dont drain uniformly, one battery could be at 87% the other at 95% . Is this normal?

mctfopt:


Increase the size of the parallel cable or use a busbar to do the parallel.

Okay, I'll try that. But does it in anyway have anything to do with the dipswitch? I want to rule that out...

Ferdiwar:
If the imbalance is consistent on a particular battery try below suggestions.

1. Confirm that the battery cables are tightened firmly.
2. Ensure that the parallel cables (between battery 1 and 2) are of same length and also the same size with the cables going to the inverter/CC.
3. Connect one cable from the inverter/CC to battery 1 and the other cable to battery 2.
4. If the batteries are from same manufacturer and same model connect the communication cable and configure them accordingly.

I dont understand your number 3, can you explain

kristien4:
Yes..same brand, same capacity.

In addition to others, check each with a different volt meter.

kristien4:
Please @all, i have a little problem with my battery. They are 2 pieces of 10kwh lifepo4 connected in parallel, when being used, they dont drain uniformly, one battery could be at 87% the other at 95% . Is this normal?

this drift is not far, 87% and 95%, i don't think u have anything to worry about. they will always converge at the bottom. the 2packs can never read the same. enjoy your batteries bro

Share pictures of the dip switches from the 2 batteries.

kristien4:
Okay, I'll try that. But does it in anyway have anything to do with the dipswitch? I want to rule that out...

From the attached, connect the +ve cable from the inverter/CC to the +ve terminal of battery 1 and the -ve cable of the inverter/CC to the -ve terminal of battery 2.

Don't mind my drawing ooo 😄 😄 😄

kristien4:
I dont understand your number 3, can you explain

See the battery percentage this morning and note each cell read 2.9v. those figures don't add up. It should be less than. 10% yet it's over 40%.

Ferdiwar:
Kindly share pictures of the BMS settings.

The BMS settings page is incomplete.

Jefferyzz:
See the battery percentage this morning and note each cell read 2.9v. those figures don't add up. It should be less than. 10% yet it's over 40%.

If you use JK bms u will know that the part I sent are the important part of the settings, others are temperature and some recovery delay settings.

Ferdiwar:
The BMS settings page is incomplete.

dollarnaira:


Waec 2025
English essay.
No 2.
Nawa o.

Upon the loads of knowledge here?

You failed the Waec 2025 question.
It is a marketing strategy to bring to your notice that ITEL has an INVERTER offering in the market.

HeavenlyBang:


Growatt of course.

microgiant:


You failed the Waec 2025 question.
It is a marketing strategy to bring to your notice that ITEL has an INVERTER offering in the market.

I ed jor. I will show you the marking marketing scheme.

But with the way Itel is going enh, they will produce humans o. They are virtually into almost everything now even usb cord.