USB Battery Pack for Raspberry Pi - 10000mAh - 2 x 5V outputs : ID 1566 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits
MakerFocus Raspberry Pi 4 Battery Pack UPS, RPI Pack Standard 10000mAh Raspberry Pi Battery USB Pack Raspberry Pi Latest Version V3Plus Expansion Board Power Supply Type-C for RPI 5 4B 3B+
Raspberry Pi Supply & USB HUB 5 Port USB 2.0 Hub Power Supply Module with 4000mAh Lithium Battery for Raspberry Pi 3 Pi 2 Model B Zero or Mobile Phone
VGE Battery Pack for Raspberry Pi, 4000mAh, 5V 2.4A, Adhesive, Pi4 (USB-C) (USB-C) : Electronics
Power Products Category on Adafruit Industries
Adafruit Industries - 1566 - USB Battery Pack for Raspberry Pi - 10000mAh - 2 x 5V outputs - RS
USB Battery Pack - 2200 mAh Capacity - 5V 1A Output : ID 1959 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB Li-Ion Power Bank with 2 x 5V Outputs @ 2.1A - 5000mAh : ID 4288 : $26.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit Industries - 1566 - USB Battery Pack for Raspberry Pi - 10000mAh - 2 x 5V outputs - RS