With 44 large 12V SLA batteries in series you are in ball-lightning territory with the power available, its pretty scary how much is available in a fault condition, perhaps a megawatt or so - that's a flashover you will not survive unscathed should anything go wrong. Such a system if used is needed to be installed for every string of batteries - this is never going to be cheap. Some multimeters have opto-isolated serial/USB interfaces that could be used to help with data-logging. Then you could place the meter and the switch in a suitably isolated transparent box and all you'd need to do is rotate between the individual cells. A qualified electrician needs to be involved, that's a given. 44-way switches are not commonplace, and a specialist version would probably have to be bespoke. The only way I can see to do this is to source some 1kV+ rated wiring, and a special high voltage rated multi-way dual-gang switch thats break-before-make. Mavic air battery is also called as an intelligent battery as it has a Battery Management System which monitors everything like cell voltages, temperature. The calculation is defined as the average current coming from the battery multiplied by the time it takes to reach a safe cutoff point of the battery. Most significantly, they can estimate expected run time under certain discharge conditions. It can also hold an enormous arc / flashover capable of starting a building fire.Ī quick and dirty solution to this problem is incredibly dangerous. Abstract: Battery management systems can measure the performance of batteries. It is incorporated with a diagnostic, measurement. The voltages are well above the ratings of many kinds of cable insulation even, so automating this setup isn't going to be simple or cheap.Īre you aware of the risks of measuring this by hand? What category of isolation does your meter have and what PPE are you using? 600V DC can be instant death. PDF This paper presents a battery management system for lead-acid battery banks used in e-vehicle. In that case this is some serious engineering, those are very lethal voltages and DC too which is much more dangerous than AC. If you see my first post i am talking about 30 - 44 batteries in series. Im making a 600V battery, and Im trying to design a battery monitoring system, that measures (and keeps log of) each cells voltage turn by turn, in a series configuration of 162 lithium cells.
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