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Found 4 results

  1. Alright finally the day has come to start on this thing. I'm gonna start with talking about the name. My buddy that passed funeral was today. He was the one friend That when I would show YouTube videos to and talk about what I was gonna do didn't think it was "stupid" or "retarded". He actually thought it was cool and would always ask when he was gonna get to see my windshield doin the wave lol. He was one of a kind and a great dude. My nickname for him was Dirty Deeds (yes the AC/DC song). It fit him very well. So no matter what I was starting this build and log on the day of his funeral. This will be my little memorial and the way I keep him with me. By the way, this is not meant to be sad at all. Death is a part of life and we all know that. This is just my way of coping and keeping his memory alive.
  2. EDIT (10/23/17): SOLD I bought a bank of 73Ah K2 Lithium two months ago. I couldn't find more than a single bank. Since then, I've sold my car and have decided to add 3 banks of lithium to my build, so I am buying all JY Power. I already have 2 banks of JY, so I'd like to sell this K2 bank to get a third JY. The bank with the copper bars is the one for sale. I made the bus bars, and the neat thing about them is that you can configure the cells in any configuration, unlike the JY bars. Here's a thread I created concerning internal resistance. These batteries measure 3.3milliohms. One JY bank I bought measures 3.3milliohm and the other 2.7milliohm. So these K2's are in good shape. Here's another thread detailing a conversation I had with Cameron at K2 concerning the good health of these cells: Talk about boosting your resting voltage! I had 395Ah of XS Power AGM installed in my car already. When I added the 73Ah cells, the system voltage rose to 13.3V and stayed there strongly. I ran these for about a week before I sold my second car and decided to go bigger. *** Asking $700 shipped to the lower 48 with bus bars included. $650 delivered to (almost) anywhere in central/east Texas and Lousiana.
  3. The purpose of this thread is to evaluate and discuss the internal resistance of various batteries and (possibly?) test methods. I’ll start this off by using the DC Load method to test some XS AGM, some K2 73Ah cells, and some K2/JYP 80Ah cells. The DC load method was used because that’s all the equipment that I had available or was able to purchase quickly and on the cheap. Here’s a link for more information on Load Test Methods. http://batteryuniversity.com/learn/article/how_to_measure_internal_resistance Calculation used was Rint = ((Vrest/Vload) -1) x Rload) Where Rint = internal resistance Vrest = Voltage at rest Vload = Voltage once load is applied Rload = resistance of the load resistor Now onto some pictures of the setup. If there is something amiss please chime in so we can figure it out. 1ohm load resistors (although they test out at 0.9ohm) I connected them in series on one end, and I can change the resistance by simply connecting my jumper wire differently. I have the opportunity to connect at 0.45ohm, 0.9ohm, and 1.8ohm. Here's proof of half(ish) ohm, although I didnt use this low of a resistance for data collection: So this connection would be 1.8ohm This connection would be 0.9ohm Here's the 73Ah K2 cells (not JY collaboration batteries) The day before testing, I topped off all the batteries, including the JYP's in the back and the AGMs to the right. 24 hours later, I actually took measurements. Data for the lithiums: Data for the D3400R AGM Looking forward to some comments, suggestions, etc. Thanks for looking!
  4. http://www.ebay.com/itm/302336617415 JY Power says these are a good buy. Anyways,check it out and make your own decision. I have mine on the way already. They wont budge much on the price.
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