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    how to wire dual bms lifepo4 packs in parallel

    I have a DIY build question. Building a solar generator with 2-280ah lifepo4 packs. Each has its own BMS. I want these to be in parallel. I understand that you hook pack 1 positive to pack 2 then use the positive of pack 1. You do the same for the negative, but the BMSs are my question. Do...
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    Batteryhookup.com Lifepo4 4s BMS not working/wiring?

    Building my first Lifepo4 pack. I have 4 little 25ah new batteries from batteryhookup.com and their Lifepo4 100ah 4s BMS. (I know the bms is big I won't charge at a high rate) I made 3 buss bars and connected the batteries. I get 13.2v across the pack. Everything seems fine. I hooked up the...
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    Jag35 48v ammo can doesn't output for long to Bluetti AC200

    I bought 2 48v ammo can kits that use 18650 batteries from jag35.com after seeing them on the guy's youtube channel. I got kit 1 together, but kit 2 had 3 bad boards and a bad ribbon cable. After a couple of weeks they sent the wrong replacement parts and went silent on me. Finally got to...
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    How to calculate watt ouput of 18650 pack

    I understand how to calculate v, ah, w, wh, etc on an 18650 battery bank that I build for example. I am stumped on how to calculate the output wattage. I know how much it will store. For example, I am going to make a battery that I can use to charge my Bluetti AC200 when it arrives. This will...
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    Charging for Tesla Model 3 21700 cell questions

    I am thinking of making a big battery pack like 14s14p or so with the model 3 2170 cells. 1. What would the charging and float voltages be for my mppt? I have guessed 58.8 charge and 57 float but want to be sure. I'll be using a Victron 150/45 Smartsolar mppt most likely. I know that a full...
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    Complex vehicle system help

    I have been watching the youtube videos and loving them. VERY helpful. I am building an overlanding/camping vehicle, and need some help with the rear power system. This is the system that will be the kitchen, power, etc. I have decided to switch from 2 Renogy non-smart lithium 12v 100ah...
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