LiPo Battery for nRF5340 Development Kit

[lcj]

I saw in this video that there was a lipo battery being used with a nrf52 Development Kit and I read this in the spec for the nrf5340 Development kit:

1.7-5.0 V supply from USB, external, Li-Po battery or CR2032 coin cell battery

What battery can I purchase that comes with the connector and how do I charge it?

[SoTXhelp]

Hello Leo,

The battery that works is from TinyCircuits. I got mine from Mouser or you can buy them from their website directly. 

Mouser has a decent stock of batteries with different capacities. 

The connector needs to be the JST SH. There are two different pin spacings. This is the correct one for the DK. 

TinyCircuits Lipo webpage. https://tinycircuits.com/collections/lipos

Tinycircuits @ Mouser - Mouser Tiny Circuits Charger

TinyCircuits @ mouser - Tiny Circuit Batteries in Stock at Mouser

Good Luck!

Regards,

Don Janysek

[lcj]

Ok. Thank you. Can I charge it using the DK itself if I plug the USB in to my computer?

[SoTXhelp]

Leo,

There is no charging circuit on the nRF5340DK. I would not advise it. 

In addition to using the tinycircuit battery you could also solder in a two pin single row header with 0.1" spacing and connect a battery source on P27. Adafruit has several options for LiPo's as well as chargers. 

Regards,

Don

[lcj]

Ok. I have a battery as it turns out. I will order the charger for it.

Connector is too big for the J6. Looking at this post it seems like I need a SM02B-SRSS-TB(LF)(SN). All the batteries I have seem to have a bigger connector. Is there some sort of converter or can I get a battery with the right connection for the nRF5340 Development Kit J6 slot?

I found another one with a smaller connector which fits the DK. Not turning on so I assume I need to charge the battery.

[SoTXhelp]

Leo,

I am not sure what battery or connector you have. I ordered some preassembled cable connectors and then changed the connector accordingly. I think a little bit of soldering would be the route I chose. 

If you tried to power on the nRF5340DK with the LiPo battery make sure you change the switch on the board. 

Regards,

Don Janysek

[lcj]

Don!!!! Hey! How are you? I didn't notice it was you responding. I did switch it over to USB. Took a while for me to find it, but I did. I ordered the chargers and the batteries too and will test them out. It would be good to have YouTube session on it. I know it seems simple, but it would be good to have all end to end. From the DK to the battery to the charger to the Bluetooth battery level service.