Battery power for Raspberry Pi 3B+ with a Waveshare 3.5inch LCD

[Jason193805]

I’m thinking something like this:
https://core-electronics.com.au/20w-adjustable-dc-dc-buck-converter-with-digital-display.html
set to 5.3 volts

with:

Rechargeable NiMH Battery Pack: 6.0 V, 2200 mAh, 5x1 AA Cells, JR Connector

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