Trophy vs Pylontech vs SOK battery longevity

[Patrick H]

I was looking at a local company for solar and they were using pylontech us5000 batteries which is about a 100ah battery for $3,300 - far more than many of the LiFePo4 batteries out there like SOK, Trophy, and EG4. I asked why they're so expensive and one of the reasons cited was the pylontechs are rated for 95% DoD at 6,000 cycles. This seems substantially better than Trophy, for example which is 80% DoD at 3,500 cycles. SOK is 4,000 cycles at 100% DoD and 7,000 at 80%.

I know Will has a high opinion of Trophy but the lifespan of the batteries seems really low compared to these other brands. Am I missing something?

 

[sunshine_eggo]

IMHO, I think all of the cycle ratings are BS. They're marketing at this point. The chances of claiming a warranty based on cycle life are pretty much zero.

 

[rpdom]

$3,300 seems a bit high for a US5000. I've been thinking about adding one to my system and I found a UK supplier selling for £1,550 inc VAT ($1,850). Of course there may be differences in taxes and things.

 

[Sanwizard]

$3,300 seems a bit high for a US5000. I've been thinking about adding one to my system and I found a UK supplier selling for £1,550 inc VAT ($1,850). Of course there may be differences in taxes and things.

The Pylontech comm protocol has become a standard of sorts, so there is that. I am sure they have some excellent engineers. That being said, SOK's are a solid solution.

 

[sunshine_eggo]

WTH? I missed an opportunity to bash Pylontech... it's right there.

Not a fan. 15S and overpriced. Pass.

 

[houseofancients]

I was looking at a local company for solar and they were using pylontech us5000 batteries which is about a 100ah battery for $3,300 - far more than many of the LiFePo4 batteries out there like SOK, Trophy, and EG4. I asked why they're so expensive and one of the reasons cited was the pylontechs are rated for 95% DoD at 6,000 cycles. This seems substantially better than Trophy, for example which is 80% DoD at 3,500 cycles. SOK is 4,000 cycles at 100% DoD and 7,000 at 80%.

I know Will has a high opinion of Trophy but the lifespan of the batteries seems really low compared to these other brands. Am I missing something?

3300 is very much too high, and they are spewing nonsense on lifetime.
both sok and trophy use 6000 cycle cells, it makes sense from a business point of view to guarantee 3500 cycles ( you do realise this is 9,5 years if you cycle your battery every day i hope ?)