- Added build #2 by Blazej using Nissan Leaf cells (10.5 kWh pack)

README.md

@@ -41,7 +41,8 @@ To get the smallest possible ROM & RAM footprint, set `TWIZY_DEBUG_LEVEL` to 0 a
   - [SEVCON configuration](extras/SEVCON-Configuration.md)
   - [Charger configuration](extras/CHARGER-Configuration.md)
 
-  - [Prototype](extras/Prototype-Blazej.md)
+  - [Prototype (Lead acid)](extras/Prototype-Blazej.md)
+  - [Build #2 (Leaf cells)](extras/Blazej2-Leaf-Cells.md)
 
 
 ## Hardware requirements

extras/Blazej2-Leaf-Cells.md

@@ -0,0 +1,31 @@
+# Build #2 by Błażej Błaszczyk using Nissan Leaf cells
+
+Błażejs second battery is based on used Nissan Leaf cells. Błażej bought a used 2015 Nissan 24 kWh pack for 14000 PLN (~3300 EUR).
+
+The 24 kWh pack consists of 48 modules with ~500 Wh each. He disassembled the pack and managed to put 21 modules into the Twizy (tight fit, original case won't fit around these).
+
+This pack uses a simple standard 14 cell hardware BMS for the cell protection and balancing (hosted on the lower PCB). The upper PCB hosts the VirtualBMS Arduino components, basically following the [example scheme](https://github.com/dexterbg/Twizy-Virtual-BMS/blob/master/extras/Twizy-Battery-Part-List.md#example-arduino-wiring-scheme). Cell voltages are measured using voltage dividers over a multiplexer, pack current is measured using a LEM hall sensor and temperatures using LM35. An HC-06 module is included for Bluetooth connectivity.
+
+Real world driving range with this 10.5 kWh pack is around 130-140 km. Due to the higher capacity, the battery voltage is more stable than the original battery, even under high load.
+
+If you'd like to know more, contact Błażej Błaszczyk <blazej.blaszczyk@pascal-engineering.com>.
+
+
+## Images
+
+(click to zoom)
+
+[![20170730_235336-nm.jpg](Blazej2-Leaf-Cells/20170730_235336-sm.jpg)](Blazej2-Leaf-Cells/20170730_235336-nm.jpg)
+[![DSC_0007-nm.jpg](Blazej2-Leaf-Cells/DSC_0007-sm.jpg)](Blazej2-Leaf-Cells/DSC_0007-nm.jpg)
+[![DSC_0009+info-nm.jpg](Blazej2-Leaf-Cells/DSC_0009+info-sm.jpg)](Blazej2-Leaf-Cells/DSC_0009+info-nm.jpg)
+[![DSC_0009-nm.jpg](Blazej2-Leaf-Cells/DSC_0009-sm.jpg)](Blazej2-Leaf-Cells/DSC_0009-nm.jpg)
+[![DSC_0010-nm.jpg](Blazej2-Leaf-Cells/DSC_0010-sm.jpg)](Blazej2-Leaf-Cells/DSC_0010-nm.jpg)
+[![DSC_0011-nm.jpg](Blazej2-Leaf-Cells/DSC_0011-sm.jpg)](Blazej2-Leaf-Cells/DSC_0011-nm.jpg)
+[![DSC_0012-nm.jpg](Blazej2-Leaf-Cells/DSC_0012-sm.jpg)](Blazej2-Leaf-Cells/DSC_0012-nm.jpg)
+[![DSC_0014+info-nm.jpg](Blazej2-Leaf-Cells/DSC_0014+info-sm.jpg)](Blazej2-Leaf-Cells/DSC_0014+info-nm.jpg)
+[![DSC_0014-nm.jpg](Blazej2-Leaf-Cells/DSC_0014-sm.jpg)](Blazej2-Leaf-Cells/DSC_0014-nm.jpg)
+[![DSC_0015-nm.jpg](Blazej2-Leaf-Cells/DSC_0015-sm.jpg)](Blazej2-Leaf-Cells/DSC_0015-nm.jpg)
+[![DSC_0016-nm.jpg](Blazej2-Leaf-Cells/DSC_0016-sm.jpg)](Blazej2-Leaf-Cells/DSC_0016-nm.jpg)
+[![DSC_0019-nm.jpg](Blazej2-Leaf-Cells/DSC_0019-sm.jpg)](Blazej2-Leaf-Cells/DSC_0019-nm.jpg)
+[![DSC_0022-nm.jpg](Blazej2-Leaf-Cells/DSC_0022-sm.jpg)](Blazej2-Leaf-Cells/DSC_0022-nm.jpg)
+

extras/Prototype-Blazej.md

@@ -10,6 +10,8 @@ There is no BMS other than the Arduino (Nano) itself. The pack voltage is measur
 
 If you'd like to know more, contact Błażej Błaszczyk <blazej.blaszczyk@pascal-engineering.com>.
 
+Please also take a look at [Błażejs build #2](Blazej2-Leaf-Cells.md).
+
 
 ## Videos