Zero W with Zero LiPo reboot


#1

Hi,

I try to boot a Zero W with LiPo Modul https://shop.pimoroni.de/products/zero-lipo
When I connect a Battery or a Power Supply to LiPo Modul Zero start to boot but at one point (I guess when starting WLAN) it reboot. This behavior loops endless.

When powering Zero W with USB Power (Powerbank or Power Supply) it is booting fine.


#2

Do you have 1Wire enabled, or any other process which could be asserting BCM4?


#3

No, clean and fresh Raspbian installation. Only Network Stuff like WLAN and Password are configured.


#4

Hi!

Most likely the undervoltage lockout on the Zero Lipo triggers as the input voltage drops during larger current spikes. Try using shorter / thicker battery wiring or a bigger battery, that might fix it.


#5

Hi Niko,

I’m using 0,5mm wiring which is enough for 12A. I’m using 4,7V from a constant powersupply so I can deliver more than 50W of Power. My Powersupply is designed for 100W.

As you see in my video voltage is never below than 4,7V.

–Manuel


#6

Dear Pimoroni Crew,

any other ideas? What can I do to get your stuff running?

–Manuel