GlennWest Posted July 21, 2019 Report Share Posted July 21, 2019 (edited) Gentleman on Craigs list in Pearland has for some time now sold solar panels and controlers. Good prices. He is now reselling Chevy Volt packs and Lg paks that are new batteries. A 3kwh pak LG (new) is selling for $475.00. I know nothing on quality of LG lithium ion batteries. They are in line with chevy volt and they are new. Thoughts on this. https://houston.craigslist.org/ele/d/pearland-48v-3kwh-lithium-ion-battery/6937919504.html Edited July 21, 2019 by GlennWest Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 21, 2019 Report Share Posted July 21, 2019 Well that is a very low price. I would want to know how much they have been used (they are new?) and their exact chemistry. Did they actually do a capacity test or is that the original rating. Lifepo4 is the safest of the chemistries but more expensive. Once you know the actual chemistry you can determine the true voltage operating range and whether it is compatible with your equipment. Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 21, 2019 Author Report Share Posted July 21, 2019 (edited) He also has a BMS for these also. Having a hard time reshearching them. Sent him an email and asked how they compared and if it is lifepo4 technology. Likely not here back till tommorrow some time. Dave, voltage is very comparable to the Volt pak. 48volt. 36v min/50.4 max. Edited July 21, 2019 by GlennWest Quote Link to comment Share on other sites More sharing options...
jcussen Posted July 21, 2019 Report Share Posted July 21, 2019 Been buying panels off him for years. A straight shooter. His house/shop has, I believe, a 20000 watt grid tie system. Believe he installs them for a living. Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 21, 2019 Author Report Share Posted July 21, 2019 Oh, I have never heard any diferent. Sure he will respond. I wondering if it is a typo. For a new batter pak, that is very cheap. Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 21, 2019 Report Share Posted July 21, 2019 Looks like LG makes the volt battery and those look exactly like volt cells so I bet that is what you are dealing with. From what I have read the volt battery charging range does not match up well for a 12 volt pack but does for a 24 or 48 volt. c He does a Chevy Volt battery install. If jcussen has been dealing with him i definetly would be interested in learning more. Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 21, 2019 Report Share Posted July 21, 2019 If you are looking at the BMS make sure it can handle both the charge and discharge amperage you will be throwing at it. Sometimes they just give you the discharge amp. Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 21, 2019 Report Share Posted July 21, 2019 These are the specs I see on a volt cell. See how they match up. Cell type Laminate type Cathode material LiMn2O4 with LiNiO2 Anode material Graphite Rated capacity (0.3C) 17 Ah Average voltage 3.8 VDC Maximum Voltage 4.2VDC Minimum Voltage 3.0VDC Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 21, 2019 Report Share Posted July 21, 2019 Looks like lg makes the leaf battery also so they could be either. Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 21, 2019 Author Report Share Posted July 21, 2019 The specs you gave are the same. It is a 12 pak and voltage and all adds up. He responded and said it is a Chevy Volt battery. Pic is not though. And new it is not if Volt.I am awaiting on next reply because I asked about that. Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 21, 2019 Report Share Posted July 21, 2019 How Many amp hours are you thinking of getting? / / Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 22, 2019 Author Report Share Posted July 22, 2019 They are both the Chevy Volt. Be getting 17k or 18k. Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 22, 2019 Report Share Posted July 22, 2019 You should watch the battery section on the you tube called "beginning this morning".He does a large Nissan leaf cell installation. Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 22, 2019 Author Report Share Posted July 22, 2019 Thanks. Will check out Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 22, 2019 Author Report Share Posted July 22, 2019 Ok. That picture is a Nissan Leaf battery. Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 22, 2019 Author Report Share Posted July 22, 2019 Yes, the Volt a lot simplier. Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 25, 2019 Author Report Share Posted July 25, 2019 I will probably buy the Volt batteries from him. He got them out of a 2014 car with 35k miles. Working a lot of hours now and them., being out of case, ready for use, means a lot just now. Quote Link to comment Share on other sites More sharing options...
Sehc Posted July 25, 2019 Report Share Posted July 25, 2019 Was there a post on this forum where the folks burned up their whole world using recycled Volt batteries? Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 25, 2019 Report Share Posted July 25, 2019 Makes sense. Quote Link to comment Share on other sites More sharing options...
GlennWest Posted July 25, 2019 Author Report Share Posted July 25, 2019 (edited) 20 hours ago, Sehc said: Was there a post on this forum where the folks burned up their whole world using recycled Volt batteries? RandyA on here had a golfcart with a volt battery that caught fire and done considerable damage. Totaled it. But that is rare as hens teeth. Randy concluded it may have been damaged internally from the car wreck the battery came out of. Because of that one incident, I will be building a metal enclosure to house the batteries. I am a welder so simple job for me. I know people who put batteries under their bed! Odds are they will be good. Murphy's law says not. I would rather be safe than sorry. Edited July 26, 2019 by GlennWest Quote Link to comment Share on other sites More sharing options...
Sehc Posted July 26, 2019 Report Share Posted July 26, 2019 With lithium batteries, other than LiFePo, fires are rather common. The only safe chemistry to experiment is LiFePo. Quote Link to comment Share on other sites More sharing options...
Alie&Jim's Carrilite Posted July 26, 2019 Report Share Posted July 26, 2019 In the last 2 months of my survey work, I have seen 2 houses burned to the ground because of lithium batteries not being properly handled. 1 house was still on fire.... First house had an aftermarket golf cart battery charging in a basement access area. Battery blew. The homeowner was cautious in talking with me about it. But from our talk, it was an electric car type of battery, that had been removed from wreck 4 weeks prior, and was being re-purposed. Had the module been damaged in the wreck? Or was the charger out of parameter with a faulty BMS Second house was a child's battery powered car that had a lithium battery installed as a replacement. The family had used the original charger to charger the ride. Quote Link to comment Share on other sites More sharing options...
Daveh Posted July 26, 2019 Report Share Posted July 26, 2019 All of the fires get categorized as lithium caused which is the problem. It is not apples to apples. Clearly LiFePo4 is the safest but there are many RVers successfully using Volt, leaf and Tesla batteries. If you are DIY you do need to know your battery chemistry and charge parameters. As you say both of the above are probably charger caused problems. Do not slap a lead acid charger on and expect everything to be okay. It is best to oversize the pack and not push them all the way to the top when charging. Unlike lead acid they do not need to be topped off. Quote Link to comment Share on other sites More sharing options...
Jennifer Ministries Posted July 28, 2019 Report Share Posted July 28, 2019 Is it will be good decision to bye a battery powered car in the future? i'am very much curious to know in that issue. awaiting for your nice feedback 😉 Quote Link to comment Share on other sites More sharing options...
jcussen Posted July 28, 2019 Report Share Posted July 28, 2019 While there was some battery fires on early Tesla's, over 300000 model 3's have been produced with no reports of a battery caused fire. Quote Link to comment Share on other sites More sharing options...
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