> For the complete documentation index, see [llms.txt](https://irnas.gitbook.io/opencollar/-MDJCI9OmpOqWrQzjNIR/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://irnas.gitbook.io/opencollar/-MDJCI9OmpOqWrQzjNIR/manufacturing/lion-tracker/lion-collar-payload-primary-battery-18pcs.md).

# Lion Collar Payload (primary battery)

## Electronics

1. primary testing
2. add GPS antenna 
3. GPS antenna testing
4. GPS antenna tuning (1592 MHz in air)
5. remove 2 components from the charger (positions D3 + U13)
6. remove all components from the top part of the board (above the EMI shield)
7. add zero-ohm resistor 
8. add EMI shield (temporarily attached in one corner)
9. add tag extension 21,4 mm + tag (do not solder right-side battery/2,5V pins on the tag extensions) 
10. tape underneath the tag to protect holes for programming from the resin
11. enlarge holes on the charger (2 mm drill)
12. battery 5-pack assembly (5x Saft-14250; 3mm x 0.1mm welding strap)
13. apply hot glue all around the EMI shield (to prevent the resin flowing underneath it)
14. add foam protection - antenova (12x12x17mm) (note: should be added at the very end, after the application of hot glue)

## Mechanics

### Enclosure

1. plastic enclosure production 
2. washing of the enclosure
3. screw holes indentation on attachment plates
4. polishing the attachment plates 
5. engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)

### Resin casting

1. Electrolube PU resin UR5528
2. cca. 38g/piece

### Engraving

{% file src="/files/-MFeRmrng8AAG1kDsd7a" %}

### Collar

1. TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
2. width: 38 mm
3. length: 1.0 m
4. logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)

{% file src="/files/-MRPVrGGf1z8RPYJWWKn" %}

{% file src="/files/-MRPVrGEsstV3V1mzUNT" %}

## Assembly

![](/files/-MB8ldE_wUZpxqxh8p0T)

![step 8: remove 2 components from the charger (positions D3 + ?)](/files/-MB8lirEe-up68k2lIj1)

![](/files/-MST0xMO3TB8mfyH_Bpa)

![step 9: battery 5-pack assembly (Saft-14250)](/files/-MB8meFdVO2ha3A9Y2AJ)

![step 13: enlarge holes on the charger](/files/-MB8n1uXkKZ_5_wzYruQ)

![](/files/-MST-fHF2jeC7SmieUdj)

![](/files/-MST-WBXR6CZAkOuhfx6)

![plastic enclosure with logo and serial number engraving](/files/-MBDQJdyKvRD1FOnoRgI)