# Twizy Battery Part List

For explosion drawings and OE part numbers, see…

1. [partsouq.com](https://partsouq.com/en/catalog/genuine/vehicle?c=Renault&ssd=%24HAxLcgIFBQEDBA5SXAdCUkZQXEd0e1pcB19WWkBRXFBTOQoWRnN5BAsCDXEVOjkCamFBSEtkVSECMBNNV0dyAw%24&vid=1409&cid=2043523126&q=)
2. [catcar.info](https://www.catcar.info/renault/?lang=en&l=c3Q9PTUwfHxzdHM9PXsiMTAiOiJNb2RlbCIsIjIwIjoiVHdpenkiLCIzMCI6Ik1BTUEiLCI0MCI6Ik1hbnVhbCIsIjUwIjoiMTkgQ29vbGluZyBzeXN0ZW0gLSBSZXNlcnZvaXJzIC0gRXhoYXVzdCBzeXN0ZW0gLSBFbmdpbmUgbW91bnRpbmcgXC8gVHJhY3Rpb24gYmF0dGVyeSJ9fHxub3Bycz09MTQwOXx8YnJhbmQ9PVJlbmF1bHR8fG5vcHI9PTE0MDl8fHR5cGU9PU1BTUF8fGNhdF9pZD09TXx8aW1nPT0wMTA0MDI2NHx8Z3JwX2lkPT0xOXx8c3ViR3JwX2lkPT0xOUd8fGNybnROb3ByPT0xNDA5fHxyZWZhY2Nlcz09TjE5OTAwMA%3D%3D)

A good source for all parts is [JC Parts](https://www.jcparts.eu/).


## Fuses, connectors and relais

| # | Image | Part | OE number | ~Price |
| --- | --- | --- | --- | --- |
| 1x | [![296539341R](parts/296539341R-sm.jpg)](parts/296539341R-nm.jpg) | Fusible Principal Fltg Ent Chr <br/> *Main fuse 500A* | 296539341R | 4.41 € |
| 1x | [![296539051R](parts/296539051R-sm.jpg)](parts/296539051R-nm.jpg) | Fusible Chargeur Fltg Ent Chrj <br/> *Charge fuse 50A* | 296539051R | 1.67 € |
| 1x | [![296535672R](parts/296535672R-sm.jpg)](parts/296535672R-nm.jpg) | Fusible Apres Contact Fltg Ent <br/> *Precharge fuse 5A* | 296535672R | 1.30 € |
| 1x | [![296535672R](parts/296535672R-sm.jpg)](parts/296535672R-nm.jpg) | Platine Fusible <br/> *Main fuse holder* | 296535672R | 10.48 € |
| 1x | [![296712452R](parts/296712452R-sm.jpg)](parts/296712452R-nm.jpg) | Platine Fusible <br/> *Charge fuse holder* | 296712452R | 7.96 € |
| 1x | [![296743399R](parts/296743399R-sm.jpg)](parts/296743399R-nm.jpg) | Embase Connecteur Batterie Tra <br/> *Main connector (DELPHI)* | 296743399R | 52.22 € |
| 1x | [![296746418R](parts/296746418R-sm.jpg)](parts/296746418R-nm.jpg) | Embase Connecteur Ba <br/> *Charge connector (DELPHI)* | 296746418R | 30.67 € |
| 1x | [![296740718R](parts/296740718R-sm.jpg)](parts/296740718R-nm.jpg) | Embase Connecteur <br/> *Signal connector (Yazaki)* | 296740718R | 86.30 € |
| 1x | [![294B16331R](parts/294B16331R-sm.jpg)](parts/294B16331R-nm.jpg) | Relais Principal Boitier Cnx P <br/> *Main relais 150A* | 294B16331R | 56.63 € |
| 1x | [![294B20431R](parts/294B20431R-sm.jpg)](parts/294B20431R-nm.jpg) | Relais Precharge Boitier Cnx P <br/> *Precharge relais 10A* | 294B20431R | 21.19 € |
| 1x | [![296156226R](parts/296156226R-sm.jpg)](parts/296156226R-nm.jpg) | Relais Chargeur Fltg Ent Chrjr <br/> *Charge relais 40A* | 296156226R | 39.96 € |
| | | **Total**  *(prices may change)* | | **~ 310 €** |

Parts may of course be replaced by functionally compatible ones, for example use a fork lift relais for the main power relais (relais & fuses are no special parts). Blazej Blaszczyk has built his [prototype](Prototype-Blazej.md) without using Renault parts. For details please contact him at <blazej.blaszczyk@pascal-engineering.com>.

  - The `296740718R` signal connector is Yazaki part no. [7282-8854-30](http://connectors-catalog.sys.yzk.co.jp/yazaki-web/servlet/SubServlet_e?forward=7282-8854-30&plist=detail&select=XX) (contact terminals sold separate).
  - The `296743399R` main power connector is DELPHI part no. [F473110](http://ecat.delphi.com/feature?search=F473110), with contact terminals [F176600](http://ecat.delphi.com/feature?search=F176600).
  - The `296746418R` charger power connector is DELPHI part no. [F873110](ecat.delphi.com/feature?search=F873110), with contact terminals [15516298](http://ecat.delphi.com/feature?search=15516298).


## Casing

| # | Image | Part | OE number | ~Price |
| --- | --- | --- | --- | --- |
| 1x | [![295F00162R](parts/295F00162R-sm.jpg)](parts/295F00162R-nm.jpg) | CARTER SUP BATTERI	<br/> *Casing cover* | 295F00162R | 129 € |
| 1x | [![295F19016R](parts/295F19016R-sm.jpg)](parts/295F19016R-nm.jpg) | CARTER INF BATTERI <br/> *Casing base* | 295F19016R | 216 € |
| 1x |  | JOINT ETC CARTER B <br/> *Casing seal* | 295G32560R | 46 € |
| | | **Total**  *(prices may change)* | | **~ 390 €** |

**Note**: Lutz Schäfer offers to build individual custom battery cases offering more space. For details please contact him at <aquillo@t-online.de>.

__Sizes__:
  - Standard Renault Box: 724 x 368 x 208 mm
  - Lutz-Box V1 (without car modification): 745 x 400 x 245 mm
  - Lutz-Box V2 (car modification necessary): 745 x 480 x 245 mm


## Arduino

**Note**: if you plan to use **Pascals integrated Twizy BMS**, you won't need an Arduino. The integrated BMS also implements the Twizy protocol.

For a basic setup you'll need an Arduino, a CAN interface and a relais to switch the 3MW signal.

Standard Arduinos can be powered from 12V, but will burn the voltage difference (convert to heat), so a step-down voltage regulator is highly recommended. The [Pololu A-Star SV series](https://www.pololu.com/category/149/a-star-programmable-controllers) has on-board step-down regulators suitable for a 12V supply.

Using an Arduino Uno style main board with shields reduces soldering requirements but needs more money and space than for example a Nano based board with break out components.

Keep in mind for all setups, this is an automotive application: expect high levels of mechanical stress due to road shocks and temperature expansion/contraction. Protect your electronics against humidity.

**Price note**: there are lots of cheap Arduino clones available. These can of course be used as well. Expect a lower build quality, so better order some spares (always a good idea).


### Example basic Uno/Shield setup

| Category | Component | ~Price |
| --- | --- | --- |
| Main+Power | Pololu A-Star 32U4 Prime SV | 24.95 € |
| CAN | Seeed Studio CAN-BUS Shield v1.2 | 24.95 € |
| Relais | Seeed Studio Relais Shield V3.0 | 21.95 € |
| **Total** | | **~ 72 €** |


### Example basic Nano setup

| Category | Component | ~Price |
| --- | --- | --- |
| Main | Arduino Nano V3 clone | 4.95 € |
| I/O | Arduino NANO Screw Terminal Expansion Board | 4.95 € |
| CAN | NiRen MCP2515_CAN (TJA1050) | 4.50 € |
| CAN | … 16 MHz quartz | 0.23 € |
| Relais | 5V 2 Channel Relay Shield | 2.95 € |
| **Total** | | **~ 18 €** |


### Example components

| Category | Component | ~Price |
| --- | --- | --- |
| Main | Arduino Uno R3 | 20.80 € |
| Main | Arduino Nano V3 | 23.80 € |
| Main+Power | Pololu A-Star 32U4 Prime SV | 24.95 € |
| Power | Pololu 5V, 2.5A Step-Down Voltage Regulator D24V22F5 | 8.95 € |
| CAN | Seeed Studio CAN-BUS Shield v1.2 | 24.95 € |
| CAN | NiRen MCP2515_CAN (TJA1050) <br/> *Note: these come with 8 MHz quartz, you should replace this with a 16 MHz type* | 4.50 € |
| Relais | Seeed Studio Relais Shield V3.0 | 21.95 € |
| Relais | 5V 2 Channel Relay Shield | 2.95 € |
| I/O | Adafruit Proto-Screwshield | 15.50 € |
| I/O | Arduino NANO Screw Terminal Expansion Board | 4.95 € |
| I/O | Adafruit ADS1015 12-Bit ADC - 4 Channel | 10.95 € |
| I/O | Mayhew Labs Extended ADC Shield | 30 € |
| I/O | Seeed Studio RS232 Shield | 12.50 € |