Dragon Posted April 12, 2019 Share Posted April 12, 2019 battery opinions Hi guys. Just been given the sales pitch on the freedom won batteries that are made locally. Exactly the same system setup I’m looking for but he insists on only using freedom won’s. They are more expensive. But aparentl (sakes pitch) far better. Reliable. Safer. Bla bla bla. Any opinions. Quote Link to comment Share on other sites More sharing options...
phil.g00 Posted April 12, 2019 Share Posted April 12, 2019 I wouldn't discount the installer's opinion straight out of hand. Mixing and matching various system components often comes with compromises and settings that have to be tweaked over time. If I was an installer, and I had found a "recipe" that worked, I'd stick to it. Presumably, he is also sticking to his guns as to the choice of inverter as well. Only you happen to agree with him on that. Take that as a sign. Quote Link to comment Share on other sites More sharing options...
Dragon Posted April 12, 2019 Author Share Posted April 12, 2019 31 minutes ago, phil.g00 said: I wouldn't discount the installer's opinion straight out of hand. Mixing and matching various system components often comes with compromises and settings that have to be tweaked over time. If I was an installer, and I had found a "recipe" that worked, I'd stick to it. Presumably, he is also sticking to his guns as to the choice of inverter as well. Only you happen to agree with him on that. Take that as a sign. Fair assessment. I’ve simply heard a lot more about the pylontech than the freedom won. So perhaps I need some other opinions or even experiences with them. Quote Link to comment Share on other sites More sharing options...
phil.g00 Posted April 12, 2019 Share Posted April 12, 2019 Me neither, until very recently. Some eye candy here: https://www.facebook.com/myoneearth/ Quote Link to comment Share on other sites More sharing options...
___ Posted April 12, 2019 Share Posted April 12, 2019 4 minutes ago, Dragon said: I’ve simply heard a lot more about the pylontech than the freedom won. My opinion: FreedomWon has a MUCH nicer BMS. Their battery ships with an Orion BMS. Also the FreedomWon battery is 16 cells series vs Pylontech's 15s. FreedomWon has higher discharge rates. I believe 4kwh FW is between 35k and 40k, Pylontech is between 30k and 35k, so FW is maybe 10%-15% more expensive (it's been a while). And you get local support, with Pylontech you have to email someone in China. I would not dismiss Freedomwon out of hand... mostly because of the BMS. Quote Link to comment Share on other sites More sharing options...
___ Posted April 12, 2019 Share Posted April 12, 2019 1 minute ago, phil.g00 said: https://www.facebook.com/myoneearth/ Solarvest. If this is your installer, you are in really good hands... Quote Link to comment Share on other sites More sharing options...
phil.g00 Posted April 12, 2019 Share Posted April 12, 2019 @plonkster, I read on this forum somewhere that wrote a custom script for the freedom won BMS. The expectation was that this would become part of the native Venus support in time. Did this happen? Quote Link to comment Share on other sites More sharing options...
___ Posted April 12, 2019 Share Posted April 12, 2019 1 hour ago, phil.g00 said: custom script You're talking about this? Full support was included a long long time ago. 2.12 if I recall. phil.g00 1 Quote Link to comment Share on other sites More sharing options...
phil.g00 Posted April 12, 2019 Share Posted April 12, 2019 2 hours ago, plonkster said: My opinion: FreedomWon has a MUCH nicer BMS. Their battery ships with an Orion BMS. It would seem Bluenova, ( another local manufacturer) also uses the Orion BMS. Would that mean that you could directly compare these two offerings in terms of price? Quote Link to comment Share on other sites More sharing options...
___ Posted April 12, 2019 Share Posted April 12, 2019 Just now, phil.g00 said: It would seem Bluenova, ( another local manufacturer) also uses the Orion BMS. Mmmmh, that is news to me. I was under the impression they recently developed their own BMS. Though google also found a page saying that some of their batteries are Orion-based. The other difference between BlueNova and FreedomWon is the former uses Winston cells, the latter uses Sinopoly. The Winston cells have Ytrium in the chemistry which apparently helps in cold weather. I don't know, just repeating what I heard. Quote Link to comment Share on other sites More sharing options...
___ Posted April 12, 2019 Share Posted April 12, 2019 Oh, and one more thing. BlueNova rate their battery capacity at C/10. Which is in my opinion a marketing trick that borders on... let's say sneaky. So for the same kWh number you technically get more capacity if you buy FW. Quote Link to comment Share on other sites More sharing options...
Mstott Posted April 12, 2019 Share Posted April 12, 2019 @plonkster I never see much mention of solar MD , what's your opinion on their battery ? Quote Link to comment Share on other sites More sharing options...
___ Posted April 12, 2019 Share Posted April 12, 2019 37 minutes ago, Mstott said: what's your opinion on their battery ? I don't know them well because until very recently they didn't have Victron support. They also rate their batteries at 1C. Haven't heard anything bad. Quote Link to comment Share on other sites More sharing options...
midnightcaller Posted March 1, 2020 Share Posted March 1, 2020 Does the freedom won and blue nova work with victron ? Quote Link to comment Share on other sites More sharing options...
___ Posted March 1, 2020 Share Posted March 1, 2020 1 hour ago, midnightcaller said: Does the freedom won and blue nova work with victron ? Oh yes! FreedomWon worked extremely closely with Victron when DVCC was developed (DVCC, by the way, is Distributed Voltage and Current Control), and some of the first "bol" versions (battery operational limits, the internal name before DVCC was thought up) were built specifically for them. BlueNova on the other hand is a bit of an independent. They aren't officially on the list of compatible batteries and Victron has never tested one of their batteries (but they have batteries from most of the others in R & D). But BN has nevertheless done a lot of work to make their batteries work well in a Victron system. Quote Link to comment Share on other sites More sharing options...
NigelL Posted March 2, 2020 Share Posted March 2, 2020 10 hours ago, plonkster said: BlueNova on the other hand is a bit of an independent. They aren't officially on the list of compatible batteries and Victron has never tested one of their batteries (but they have batteries from most of the others in R & D). But BN has nevertheless done a lot of work to make their batteries work well in a Victron system. Victron definitely support BlueNova batteries - see https://www.victronenergy.com/live/battery_compatibility:start . BlueNova batteries, with newer BMS firmware, also support the DVCC feature - it works well on my system Quote Link to comment Share on other sites More sharing options...
___ Posted March 2, 2020 Share Posted March 2, 2020 11 minutes ago, NigelL said: see https://www.victronenergy.com/live/battery_compatibility:start Haha! OK, I should have checked before I wrote that. The rest is still true though. Sometimes the manufacturer does the integration work, sometimes Victron does it, and sometimes it is a team effort. For the big battery makers there is literally an example installation in R & D. This includes BYD, Pylontech, Discover, LG, and so forth. FreedomWon and BlueNova are two companies that did the work themselves, but they did an excellent job. Quote Link to comment Share on other sites More sharing options...
mmacleod Posted March 2, 2020 Share Posted March 2, 2020 (edited) I'd demand a link to testing data to prove the claims of reliability, safety and so on. Pylontech have been tested (ongoing) by an independent lab https://batterytestcentre.com.au/wp-content/uploads/2017/07/Battery-Testing-Report-7-September-2019.pdf and are doing very well... Given the battery industries very spotty history with false claims and shoddy products, and given how poorly some of the other batteries in that same testing report above have done - I would be extremely hesitant to assign any non-verifiable claim any value whatsoever, especially a claim by a sales person or manufacturer. If the batteries are meant to be more reliable then they must prove it somehow, if they can't then its as good as a lie. Edited March 2, 2020 by mmacleod Small grammar fix Quote Link to comment Share on other sites More sharing options...
Shaun 033 Posted August 24, 2023 Share Posted August 24, 2023 Freedom won is the best hands down, pylontech is amongst the worst! I'd say go with the overall quality of you're system, if you have a victron or sunsynk I'd go for a freedom won, If you have a mercer/ellies etc go for a pylontech. A happy medium of quality slightly worse then the freedom won and slightly more expensive then a freedom one I'd recommend speaking to you're installer about a BSL battery. Quote Link to comment Share on other sites More sharing options...
BritishRacingGreen Posted August 25, 2023 Share Posted August 25, 2023 19 hours ago, Shaun 033 said: pylontech is amongst the worst! There must be something you know about Pylontech that we dont, do you care to qualify why its such a bad battery? 19 hours ago, Shaun 033 said: A happy medium of quality slightly worse then the freedom won and slightly more expensive then a freedom one I'd recommend speaking to you're installer about a BSL battery. This is most intriguing, you say BSL is worse rhan FW and its more expensive than FW, and you reccomend it??!! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.