I have a pylontech Up5000 batterynd trying to decide if its better to partial cycle the battery each day or keep at full charge for loadshedding.Ideally i want to partial cycle to save on electicity costs and if theres loadshedding then the battery can discharge further till loadshedding ends for example.Hoping infoncan be shared on what is the best way to setup to extend life of battery but also save on electricity costs.

Edited August 2, 20223 yr by Kratos

You paid for the battery, you may as well use it (assuming you have solar). I'd cycle it each day. 

9 hours ago, Kratos said:

I have a pylontech Up5000 batterynd trying to decide if its better to partial cycle the battery each day or keep at full charge for loadshedding.Ideally i want to partial cycle to save on electicity costs and if theres loadshedding then the battery can discharge further till loadshedding ends for example.Hoping infoncan be shared on what is the best way to setup to extend life of battery but also save on electricity costs.

If one uses a battery only for LS it is a waste of keeping it charged for the 2hrs a week of LS. Average over the last 3yrs.

Further the battery has a life made up of cycles. Each time it is discharged and charged some life is taken away. So using to save on power and getting a long life is on opposite sides of the fence. Strike a balance between the 2.

Cycle your battery, keeping it above 20% to help with battery life. If you do this daily, you'll most likely "pay off" your battery in 5-7 years. (depending on electricity tariff hikes). 

Then when you know there is loadshedding, keep your battery above 50 - 70%(depending on your consumption) to make sure you make it through loadshedding. 

Perfect thanks for this does sound better im just not sure what voltage equates to 20% vs 50-70% apologys complete noob here its a up5000 4.8kwh and i cant use bms since no connection to invertor

These are my settings

SUB

LBU

CSO

17: Bulk :53.2

18:Float : 52.2v

19: low dc cutoff voltage :47.5 let me know if this is right for the battery also

20: Stop discharge when grid available:48v need to check if this is right.

21: Battery stop charge when grid available: 53v

Edited August 3, 20223 yr by Kratos

1 hour ago, Kratos said:

Perfect thanks for this does sound better im just not sure what voltage equates to 20% vs 50-70% apologys complete noob here its a up5000 4.8kwh and i cant use bms since no connection to invertor

These are my settings

SUB

LBU

CSO

17: Bulk :53.2

18:Float : 52.2v

19: low dc cutoff voltage :47.5 let me know if this is right for the battery also

20: Stop discharge when grid available:48v need to check if this is right.

21: Battery stop charge when grid available: 53v

I have a hubble, not sure on the pylontech batteries. Hopefully someone that has a pylontech can help with the settings

Manufacturer indicates to charge at 52.5-53.5V

Table indicating life cycle. Stick in the 25-85% SOC. Take it up to 100% to allow balancing to take place say every 2 months. Just my guess.

Edited August 3, 20223 yr by Scorp007

1 hour ago, Scorp007 said:

Take it up to 100% to allow balancing to take place say every 2 months. Just my guess

With the pylon you have to take it to 100% daily - both for warranty purposes, and also because the balance current is so weak, you have to do it daily to keep them balanced.

For warranty purposes, you have to cycle them daily.

Edited August 3, 20223 yr by P1000

16 minutes ago, P1000 said:

With the pylon you have to take it to 100% daily - both for warranty purposes, and also because the balance current is so weak, you have to do it daily to keep them balanced.

For warranty purposes, you have to cycle them daily.

Thanks. Is it not a grey area when you using it without comms as in this case. Would the warranty still apply?

11 minutes ago, Scorp007 said:

Thanks. Is it not a grey area when you using it without comms as in this case. Would the warranty still apply?

That probably voids the warranty, but I would still follow the recommendations - there is probably a reason for it.

30 minutes ago, P1000 said:

That probably voids the warranty, but I would still follow the recommendations - there is probably a reason for it.

Perhaps because they want the balancing to be done daily as it can take very long if not done regularly?

1 hour ago, P1000 said:

That probably voids the warranty, but I would still follow the recommendations - there is probably a reason for it.

Im not sure if this invertor can be connected see pictures these are the available ports on the battery and invertor .Can the COM port be used if so what cable will I need and where can I obtain this  or if there is anyone around JHB south that can help setup that would also be appreciated.

AFAIK the cable comes with the battery.

I probably misplaced it because I cant find it hopefully I can get one.

On 2022/08/03 at 9:14 AM, Scorp007 said:

Manufacturer indicates to charge at 52.5-53.5V

Table indicating life cycle. Stick in the 25-85% SOC. Take it up to 100% to allow balancing to take place say every 2 months. Just my guess.

I use 80% DoD, so looks like I'll be replacing my Hubble AM2 in 400/365 approx 1.1 to 2.5 years.... 😢

I did a bit of googling, and the number from:
https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries

seem to be somewhat conservative.
See
https://core.ac.uk/download/pdf/323272674.pdf
https://doi.org/10.3390/batteries7040088

Edited August 8, 20223 yr by system32

1 hour ago, system32 said:

I use 80% DoD, so looks like I'll be replacing my Hubble AM2 in 400/365 approx 1.1 to 2.5 years.... 😢

Had my Hubble for just under a calendar year now. 359cycles and zero loss in capacity so far.
Daily cycle and usage down to 30-40% SOC average every mornings. Have had infrequent 20-30% SOC and also two shutdowns at 20% SOC. So up to now I remain optimistic judging by my usage and the reported values.

Edited August 8, 20223 yr by zsde