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Batteries & their total cycles / lifespan

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5 minutes ago, hoohloc said:

Up to this day, I'm still waiting to hear from someone who Pylontech refused to honor his/her warranty claim.  

I have had a few not honored quite recently and due to CMU failure because apparently the 73 amp limit was exceeded.. cost quite a bit to replace the CMU however lets leave it at that

 

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  • tetrasection
    tetrasection

    AFAIK a cycle means that you discharge the battery by 1C (or by the usable kwh, since most bms's will shut off at around 90%) So say you have a 10kwh battery (of which 90% is usable), if you disc

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1 minute ago, Leshen said:

Hi Achmat. 
 

Unfortunately we as installers don’t deal directly with Pylontech however we do deal with Segen and their requirements are quite clear ie a 5kw inverter paired with a minimum of 2 x UP5000. 
 

When there is  a warranty claim, I have to contact Segen, not Pylontech, and I can assure you that they want to see everything regarding an install, ie wiring diagram, pics etc. 
 

I won’t take that risk, I would rather install a system that complies with Segen’s T&Cs.

So it's Segen Solar's requirement and not pylontech. 

 

I wonder what pylontech would have to say about their local distributor making up their own warrantee requirements. 

Just now, Achmat said:

So it's Segen Solar's requirement and not pylontech. 

 

I wonder what pylontech would have to say about their local distributor making up their own warrantee requirements. 

Like I said, I deal with Segen and not Pylontech. I can assure you that Segen takes directive from Pylontech. Maybe also ask the question as to why did Pylontech decide to reduce their warranty on the latest UP5000? 

4 minutes ago, Boerseun said:

I have had a few not honored quite recently and due to CMU failure because apparently the 73 amp limit was exceeded.. cost quite a bit to replace the CMU however lets leave it at that

 

So was it the BMS protection not kicking in or was it being overridden by the inverter or user purposefully. 

1 minute ago, Leshen said:

Like I said, I deal with Segen and not Pylontech. I can assure you that Segen takes directive from Pylontech. Maybe also ask the question as to why did Pylontech decide to reduce their warranty on the latest UP5000? 

Then you really should stop saying its the pylontech warrantee as its clearly not. Its the warrantee imposed by Segen Solar. 

21 minutes ago, Boerseun said:

I have had a few not honored quite recently and due to CMU failure because apparently the 73 amp limit was exceeded.. cost quite a bit to replace the CMU however lets leave it at that

 

Sorry to hear about that, out of interest, were you using BMS? Did you ask them how 73A was exceeded while BMS was being used and should have protected the battery? I'm using BMS and it seems to be working well. 

Edited by hoohloc
gramma

3 minutes ago, Achmat said:

Then you really should stop saying its the pylontech warrantee as its clearly not. Its the warrantee imposed by Segen Solar. 

Did you read where I said that Segen takes directive from Pylontech or did you completely miss that?

2 minutes ago, Leshen said:

Did you read where I said that Segen takes directive from Pylontech or did you completely miss that?

I saw that. Still goes against the official pylontech documentation and warrantee requirements. 

Unless the Segen warrantee is officially endorsed by pylontech, its not pylontechs warrantee requirement. 

3 minutes ago, Leshen said:

Did you read where I said that Segen takes directive from Pylontech or did you completely miss that?

How come the other distributers don't have those terms and conditions? 

8 minutes ago, Leshen said:

Did you read where I said that Segen takes directive from Pylontech or did you completely miss that?

How come the other distributers don't have those terms and conditions? 

Edited by hoohloc
double posted

Just now, Brani said:

DOD - which is how many watts will the battery give in it’s warranted life span (not to be confused with expected life span).

if I hookup 6x3000 watt Pylontech batteries with 8kW inverter, I don’t care about the C rating anymore.

i did mention the C rating being disadvantage, but I’m looking at where will the user be after couple of thousand cycles, and to be honest, Pylontech has some good testing data, and Hubble has none.

you see now that is where it gets completely muddy C Rating is very relevant if you are comparing the batteries capabilities and so on 

20 minutes ago, hoohloc said:

Sorry to hear about that, out of interest, were you using BMS? Did you ask them how 73A was exceeded while BMS was being used and should have protected the battery? I'm using BMS and it seems to be working well. 

US3000C batteries have the problem. not US2000B

25 minutes ago, Leshen said:

Like I said, I deal with Segen and not Pylontech. I can assure you that Segen takes directive from Pylontech. Maybe also ask the question as to why did Pylontech decide to reduce their warranty on the latest UP5000? 

Can any of you Pylontech experts answer my question on the reduction of the warranty on the UP5000? 

12 minutes ago, Leshen said:

Contact those distributors and ask them. 

send them an email, lets wait to see what they say. Two different supplier, The solar shop and inverter warehouse. When I started out, they told me I could get a 5Kw Growatt inverter and one battery, then add on to that when funds are available. I don't see how they can advice me like that if they knew I would have a problem with my battery warranty. And that they will be the ones giving me a new replacement battery  

5 minutes ago, Leshen said:

Can any of you Pylontech experts answer my question on the reduction of the warranty on the UP5000? 

please enlighten us very  good question

2 minutes ago, hoohloc said:

send them an email, lets wait to see what they say. Two different supplier, The solar shop and inverter warehouse. When I started out, they told me I could get a 5Kw Growatt inverter and one battery, then add on to that when funds are available. I don't see how they can advice me like that if they knew I would have a problem with my battery warranty. And that they will be the ones giving me a new replacement battery  

Send Herholdts an email as well and ask them why they stopped selling all Pylontechs. 

9 minutes ago, Brani said:

point 6 is exactly the same condition that you mentioned on Pylontech.

Obviously it has to be installed according to the manual all warranty documents for batteries will specify that 

1 minute ago, Leshen said:

Send Herholdts an email as well and ask them why they stopped selling all Pylontechs. 

My two suppliers are still selling Pylontechs, so I'm good with that. 

4 minutes ago, Boerseun said:

Obviously it has to be installed according to the manual all warranty documents for batteries will specify that 

Same thing applies to Pylontechs, follow the manufacture's recommendations and manuals and you will not have an issue with warranty. And chose your supplier carefully 

3 minutes ago, Tariq said:

Unfortunately, I have dealt with Segensolar regarding another product, they seem to look at ways to reject a warranty claim, the manufacturer overrode Segensolar’s decision and sent me a new inverter 

It is clear that the problem is not with Pylontech warranty. the issue is with the supplier not wanting to assist with warranty claims, hence imposing unreasonable terms and conditions 

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