DJI FPV goggles 3s 18650 battery

I designed this battery for 3s 18650 cells to never run into low voltage warnings about 7.5V as happens when using standard 2s batteries from my Fatshark goggles.

The battery will fit into your trousers pocket, can be clipped onto your belt or even to the rear of the goggles headband.

I added some intelligence, such as a BMS board, placed at the bottom of the box

e.g. https://www.ebay.de/itm/235248467385 or https://www.roboter-bausatz.de/p/3s-20a-li-ion-lithium-batterie-18650-ladegeraet-pcb-bms-12.6v-cell-schutz-board

a charge state indicator

e.g. https://www.ebay.de/itm/115594791816 or https://www.ebay.de/itm/115920784366

and a pushbutton for displaying the charge state when pressed

e.g. https://www.ebay.de/itm/384170451817

These links may get obsolete over time, just look for something similar on eBay.

My batteries are Sony / Murata Konion VTC6 type with welded contact stripes in Z configuration for easy soldering.

As a cable relief I have used a piece of silicone tube.

The clip is a separate part for both more easy printing of the lid without need for support and to be optional in case you don't need it. My clip has been glued with CA to the lid.

Use 4 x M2x5 screws for attaching the lid to the box.

Print Settings

Printer:

Anycubic I3 Mega

Rafts: 

No

Supports:

Yes

Resolution: 

0.2mm

Infill:

100%

Filament:

any PETG

any

Category: R/C Vehicles