4×AA Battery Holder with Switch
by Generic
SKU: PSA-CMP-AA-HOLDER
No reviews yetTypical India street price
₹30–₹80
The honest robot battery pack — better current than 9 V.
Interface: Leads or barrel
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Concept
Series cells add voltage; parallel (rare in these holders) adds current.
A little theory
4×AA alkaline ≈ 6 V. NiMH ≈ 4.8 V. Internal resistance beats 9 V blocks. In the classroom, treat 4×AA Battery Holder with Switch as a beginner part using Leads or barrel. Typical India street price is about ₹30–₹80. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
Switch off when idle; common GND with MCU; motors off this pack via driver.
Classroom & project use
- 2WD cars
- Field demos
- Power Supply classroom demo
Buying in India
Precautions
- Share a common GND with the microcontroller
- Verify polarity and voltage before powering the circuit
Specifications
| Cells | 4xAA series |
| Category | Power Supply |
| Difficulty | Beginner |
| Voltage | ~6V alkaline / ~4.8 V NiMH |
| Interface | Leads or barrel |
Pinout
See module silkscreen: typically VCC, GND, and signal pins. Confirm labels against the seller photo — clones vary.
