RU-20 (PRC-515) Battery upgrade

In this video I show how to replace the original battery with more modern 18650 Li Ion cells.
You will need to provide around 24V to make the radio work properly. With this setup the battery will run at 25.2V when fully charged. The capacity will be around 5000mAh, much more than the stock battery.
You will need
Twelve 18650 batteries (I got them from an old laptop battery), 6S BMS, Spot welder, Nicker Stripe, a power connector, Kapton tape and shrinking tube.

I am just an amateur, I decline any responsibility if you attempt to follow this procedure.

Always charge the lithium cells with the right charger, in this case 6S

LIKE & SUSCRIBE If you like my content.

[ljubomirdimovski]

Nato Sticker on a Yugoslavian Radio??? Man, take the sticker off 😁

[pasqualelombardi]

The Voltmeter at 9:29 to 9:34 minutes in your video. Where can I purchase it? Look at your video at 9:29 minutes to 9:34 Minutes. Thank you, Pat.

[pasqualelombardi]

The Volt meter at 9:29-9:34 minutes in your video. Where can I purchase it?

[pasqualelombardi]

Where can I pourchase the "Voltmeter" you used at 9:32 in the video?

[ysrs]

Saludos desde YS. Pregunta rápida… con que re-cargas ese battery pack? Siendo de 24V es un cargador especial… el BMS se encarga de lo demás. Voy a fabricarme un paquete igual al tuyo, de acuerdo a tu video. Es para una RU-20 igual al tuyo y necesitaré cargador. Alguna recomendación?
Gracias de antemano.

PD. Olvidé mencionar que es mi primer “Green Radio”. Aprendiendo mucho cada día.
73
YS1RS

[aschlack]

Hola me encato tu video. pregunta: cuantas horas de operacion lograste obtener con esta bateria?
y por ultimo. que opinas de la radio?
gracias desde vk2
73

[pasqualelombardi]

Look at your video at 9 minutes and 29 seconds to 9 minutes and 34 seconds.