
The battery holder was too weak. When I tried to replace the battery, one of the battery holders broke. I ordered 8 for a programming lesson for my 4th graders but ended up sending them back because they were too weak. great idea; but bad design or bad construction.

Vilros Raspberry Pi 4 4GB Complete Starter Kit - Black Fan-Cooled Aluminum Case for Heavy-Duty Performance
12 Review

GeeekPi Raspberry Pi Cluster Case with Cooling Fan and Heatsink for Pi 4 Model B, 3 Model B+ & 3/2 Model B
11 Review

π Ultimate BBC Micro bit Sensor Starter Kit: Keyestudio 37-in-1 Box with Tutorial, Compatible with V1.5 & V2, Gift for Kids and Adults (Microbit Board Not Included)
11 Review

π MCIGICM 2 Channel DC 5V Relay Module: Optocoupler Low Level Trigger Expansion Board for Arduino UNO R3, DSP, ARM, PIC, AVR, STM32, Raspberry Pi
11 Review

Glarks 660 Pieces Phillips Assortment Motherboard
10 Review

uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review

36-Pack Black Rubber PC CPU/Case Fan Screws/Rivets Set for Computer
11 Review

M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review