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Lithium Titanate (LTO) battery bank build.
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<blockquote data-quote="L1ttlet" data-source="post: 8658520" data-attributes="member: 675617"><p>Wow this is the most informative thread so far that I have read involving lithium. Y'all definitely know your stuff and know far more than me. I am now having difficulty staying up with the talk.</p><p></p><p>from what I have gathered the cells you are running hISPLS would not do a 14.4v charge? The one's I left a link on with 5s would be 14.4v and 3p (your right my math was off) 120ah should be able to sustain my system of 300-500 amp discharge for around 5mins at a time since they are technically discharging and charging rapidly.</p><p></p><p> I am wanting to avoid a H/0 alternator (as research into these cells says they work better with a smaller amp charge) not to mention the money saved from buying a $600 350amp alt (as well as at least $600 in agm) and then weight (suspension issues) and space to put all these.</p><p></p><p>The LTO seems like the best investment to get me by for a few yrs until they have mastered this technology and have mainstreamed production for car audio applications.</p><p></p><p>I plan on getting a new vehicle and will be out the mula for the h/0 alternator as the lto cells can follow me from vehicle to vehicle install.</p><p></p><p> Back to what y'all are talking about. The SOC I thought when they are charged would be what they say they are rated on the cells voltage (ex. 3.5 volt cell @100% SOC would be 3.5volts) I'm not sure about all the SOC specs. Also the BMS that you were mentioning in order to work for our applications would be far to costly and large to be practical is what I gathered. </p><p></p><p>In that case could we (I) run a 120ah for a few yrs without a bms system and be okay and everything work fine. Cuz if a cell fails in an agm then the whole battery is destroyed, but usually has (warranty). these cells however, would act the same as a agm cell in a battery bank and then there is not warranty and being out all the mula for those cells.</p><p></p><p>y'all have far surpassed my knowledge in this field. Boominburban I have always wondered if you could use those type cells in car audio applications. Looks good and alot juice. Anyway I was hoping to build my own and not sure that I want to now as there is so much to learn and not to mention special chargers n what not. Just now wanting the 120ah lto.</p><p></p><p>Hispls, as u mentioned they come 40% charged. So if I hooked these up just like hooking another battery up in my system couldn't I just hook up a resister like installing a capacitor for the first time? If so, would the one they sent me with the nvx 10 farad hybrid cap work for charging these?</p><p></p><p>As you were mentioning in the 15.5v range (not worried about that as my amps can handle that) but wouldn't that possibly back feed into battery and even alternator and destroy it all? How would u isolate that higher charge. Not sure if I forgot a few questions as I have many and am really trying to understand all this to start making my own (safely) someday soon. </p></blockquote><p></p>
[QUOTE="L1ttlet, post: 8658520, member: 675617"] Wow this is the most informative thread so far that I have read involving lithium. Y'all definitely know your stuff and know far more than me. I am now having difficulty staying up with the talk. from what I have gathered the cells you are running hISPLS would not do a 14.4v charge? The one's I left a link on with 5s would be 14.4v and 3p (your right my math was off) 120ah should be able to sustain my system of 300-500 amp discharge for around 5mins at a time since they are technically discharging and charging rapidly. I am wanting to avoid a H/0 alternator (as research into these cells says they work better with a smaller amp charge) not to mention the money saved from buying a $600 350amp alt (as well as at least $600 in agm) and then weight (suspension issues) and space to put all these. The LTO seems like the best investment to get me by for a few yrs until they have mastered this technology and have mainstreamed production for car audio applications. I plan on getting a new vehicle and will be out the mula for the h/0 alternator as the lto cells can follow me from vehicle to vehicle install. Back to what y'all are talking about. The SOC I thought when they are charged would be what they say they are rated on the cells voltage (ex. 3.5 volt cell @100% SOC would be 3.5volts) I'm not sure about all the SOC specs. Also the BMS that you were mentioning in order to work for our applications would be far to costly and large to be practical is what I gathered. In that case could we (I) run a 120ah for a few yrs without a bms system and be okay and everything work fine. Cuz if a cell fails in an agm then the whole battery is destroyed, but usually has (warranty). these cells however, would act the same as a agm cell in a battery bank and then there is not warranty and being out all the mula for those cells. y'all have far surpassed my knowledge in this field. Boominburban I have always wondered if you could use those type cells in car audio applications. Looks good and alot juice. Anyway I was hoping to build my own and not sure that I want to now as there is so much to learn and not to mention special chargers n what not. Just now wanting the 120ah lto. Hispls, as u mentioned they come 40% charged. So if I hooked these up just like hooking another battery up in my system couldn't I just hook up a resister like installing a capacitor for the first time? If so, would the one they sent me with the nvx 10 farad hybrid cap work for charging these? As you were mentioning in the 15.5v range (not worried about that as my amps can handle that) but wouldn't that possibly back feed into battery and even alternator and destroy it all? How would u isolate that higher charge. Not sure if I forgot a few questions as I have many and am really trying to understand all this to start making my own (safely) someday soon. [/QUOTE]
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