Wiki source code of 1. Technical specifications
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| 1 | (% data-numbered-headings-start="1" style="--numbered-headings-start: 0;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %) | ||
| 2 | = Technical specifications = | ||
| 3 | |||
| 4 | BMS Mini 2 is a miniature full-featured centralized BMS for high-capacity lithium-ion batteries. It has many communication interfaces, an ability to collect information during the entire battery lifetime and an integrated DC/DC converter. | ||
| 5 | |||
| 6 | == Specifications == | ||
| 7 | |||
| 8 | (% style="width:624px" %) | ||
| 9 | |**Parameter**|(% style="width:230px" %)**Value** | ||
| 10 | |Battery voltage, V|(% style="width:230px" %)14 to 78 | ||
| 11 | |((( | ||
| 12 | Current consumption @48 V, mA (maximum): | ||
| 13 | |||
| 14 | work (no load) | ||
| 15 | |||
| 16 | standby | ||
| 17 | )))|(% style="width:230px" %)((( | ||
| 18 | |||
| 19 | |||
| 20 | 30 | ||
| 21 | |||
| 22 | 0.2 | ||
| 23 | ))) | ||
| 24 | |Number of cells|(% style="width:230px" %)6 to 18 | ||
| 25 | |Cell balancing type|(% style="width:230px" %)Passive | ||
| 26 | |Cell balancing current, mA, @ 4.2 V|(% style="width:230px" %)220 | ||
| 27 | |Cell voltage measurement error, V|(% style="width:230px" %)0.004 | ||
| 28 | |Cell temperature measurement error, °С|(% style="width:230px" %)2 | ||
| 29 | |Output voltage of the internal DC/DC converter, V|(% style="width:230px" %)12 ± 1 | ||
| 30 | |Output current of the internal DC/DC converter, A (maximum)|(% style="width:230px" %)3 | ||
| 31 | |Number of MOSFETs (to drive power contactors)|(% style="width:230px" %)4 | ||
| 32 | |MOSFETs output voltage, V (maximum)|(% style="width:230px" %)100 | ||
| 33 | |MOSFETs output current, A (maximum)|(% style="width:230px" %)5 | ||
| 34 | |Number of discrete inputs (dry contact)|(% style="width:230px" %)4 | ||
| 35 | |Number of discrete outputs|(% style="width:230px" %)4 | ||
| 36 | |Discrete outputs voltage, V (typical)|(% style="width:230px" %)5 | ||
| 37 | |Discrete outputs current, mA (maximum)|(% style="width:230px" %)100 | ||
| 38 | |Type of the current sensor|(% style="width:230px" %)Hall-Effect sensor, bidirectional, (LEM series: HASS, HTFS, DHAB) | ||
| 39 | |Wired interfaces|(% style="width:230px" %)1xCAN / 1xRS-485 / 1xUSB | ||
| 40 | |Wireless interfaces|(% style="width:230px" %)Wi-Fi (optional) | ||
| 41 | |Dimensions (length × width × height), mm|(% style="width:230px" %)140 × 117 × 17 | ||
| 42 | |Weight, g|(% style="width:230px" %)240 ± 5 | ||
| 43 | |Operating temperature range, °С|(% style="width:230px" %)-40 to +85 | ||
| 44 | |||
| 45 | == Overall and mounting dimensions == | ||
| 46 | |||
| 47 | [[image:1733738049362-366.png||data-xwiki-image-style-alignment="center" height="471" width="418"]] | ||
| 48 | |||
| 49 | == Typical battery system == | ||
| 50 | |||
| 51 | Typical battery system based on the BMS Mini 2 is shown on figure below. | ||
| 52 | |||
| 53 | [[image:1733738121167-480.png]] | ||
| 54 | |||
| 55 | == Safety rules == | ||
| 56 | |||
| 57 | The BMS can be connected to batteries with life-threatening and health-hazardous voltage levels. When working with high-voltage batteries, observe electrical safety regulations, use safety glasses, protective clothing, insulated tools, and appliances. | ||
| 58 | |||
| 59 | (% class="box errormessage" %) | ||
| 60 | ((( | ||
| 61 | **The system is not designed to work with batteries with total voltage more than 80 volts.** | ||
| 62 | ))) | ||
| 63 | |||
| 64 |