====== BM-CS ======

**BTMS Cell sensor**


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| Order code:  ^ BM-CS-12                                   | for 12 V battery  |
| :::          ^ BM-CS-02                                   | for 2 V battery   |
| Mounting:    | On battery, 3M double sided adhesive tape                     ||
| Dimensions:  | 60 × 95 × 25 mm                                               ||


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===== Highlights & Features =====

  * Real-time cell voltage measurement
  * Internal resistance measurement on line
  * Negative pole temperature measurement
  * Balancing function

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===== Technical specification =====

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^ Power supply             | BM-SS-02                      | 2 VDC (1.6 .. 2.6 VDC)    |
| :::                      | BM-SS-12                      | 12 VDC (7.5 .. 15.6 VDC)  |
^ Power loss               | BM-SS-02                      | 110 mW                    |
| :::                      | BM-SS-12                      | 90 mW                     |
^ Operating temperature    | standard                      | 0 .. 45 °C                |
| :::                      | max                           | -10 .. 55 °C              |
^ Storage temperature      | -40 .. 70°C                                              ||
^ Operating humidity       | 5 .. 95 % RH, Non condensing                             ||
^ Dimensions:              | width                         | 60 mm                     |
| :::                      | height                        | 80 mm                     |
| :::                      | height max                    | 95 mm                     |
| :::                      | depth                         | 25 mm                     |
^ Voltage measurements     | BM-SS-02                      | 1.6 .. 2.6 VDC            |
| :::                      | BM-SS-12                      | 7.5 .. 15.6 VDC           |
| :::                      | accuracy                      | ±0.2 %                    |
| :::                      | resolution                    | 0.001 V                   |
^ Resistance measurements  | range                         | 0.1 .. 50 mΩ              |
| :::                      | consistency                   | ±(1.5 % + 25 μΩ)          |
| :::                      | repeatability                 | ±(1.0 % + 25 μΩ)          |
| :::                      | resolution                    | 0.001 mΩ                  |
^ Balancing                | Current                       | 0.2 A                     |
^ :::                      | Time                          | 1 min                     |

**LED indicator**

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^ Normal operation  | Green LED breathing mode  |
^ Alarm             | Red LED flashing          |

**Battery SOC is calculated using the default battery characteristic parameters:**

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^ Battery voltage level  ^  2 V                   ^  12 V     ^
| Float range            |  -0.02 C* .. +0.02 C*             ||
| Float voltage          |  2.23 V                |  13.38 V  |
| Cut-off voltage        |  1.75 V                |  10.8 V   |
| Recovery voltage       |  2.12 V                |  12.68 V  |

* C is the battery capacity
===== Wiring =====

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