

Manufacturer: Cat
Part ID: Lithium
The 3 Cell Holder is a compact and durable device designed to securely hold and connect three batteries in series or parallel configurations. It ensures proper alignment and electrical contact, making it an essential component for powering a wide range of electronic devices. This holder is compatible with standard cylindrical batteries, such as AA, AAA, or 18650 cells, depending on the specific model.
The following table outlines the key technical details of the 3 Cell Holder:
| Parameter | Specification |
|---|---|
| Battery Configuration | 3 cells in series or parallel (depending on wiring). |
| Supported Battery Types | AA, AAA, or 18650 (model-specific). |
| Output Voltage | 4.5V (3 x 1.5V cells in series) or 3.7V (3 x 18650 cells in parallel). |
| Material | High-quality ABS plastic with metal spring or flat contacts. |
| Dimensions | Varies by model (e.g., 18650 holder: ~80mm x 60mm x 20mm). |
| Current Rating | Up to 5A (depending on battery type and holder design). |
| Operating Temperature | -20°C to 60°C. |
| Weight | ~20g (without batteries). |
The 3 Cell Holder typically has two output terminals:
| Pin | Label | Description |
|---|---|---|
| 1 | Positive (+) | The positive terminal of the battery pack. Connect to the positive side of the circuit. |
| 2 | Negative (-) | The negative terminal of the battery pack. Connect to the ground of the circuit. |
Insert Batteries:
Connect to Circuit:
Secure the Holder:
The 3 Cell Holder can be used to power an Arduino UNO via its VIN pin. Below is an example of how to connect the holder and a simple Arduino sketch to blink an LED.
// Simple LED Blink Example
// This code blinks an LED connected to pin 13 of the Arduino UNO.
// Ensure the 3 Cell Holder is connected to the VIN and GND pins of the Arduino.
void setup() {
pinMode(13, OUTPUT); // Set pin 13 as an output pin
}
void loop() {
digitalWrite(13, HIGH); // Turn the LED on
delay(1000); // Wait for 1 second
digitalWrite(13, LOW); // Turn the LED off
delay(1000); // Wait for 1 second
}
| Issue | Possible Cause | Solution |
|---|---|---|
| Batteries not powering the circuit | Incorrect polarity or loose connections. | Check battery orientation and ensure secure connections. |
| Overheating of the holder | Excessive current draw or short circuit. | Verify the circuit design and ensure current is within the holder's rating. |
| Corrosion on terminals | Battery leakage or prolonged storage. | Clean terminals with isopropyl alcohol and use fresh batteries. |
| Low output voltage | Batteries are discharged or mismatched. | Replace with fully charged or new batteries of the same type and capacity. |
Can I use rechargeable batteries with the 3 Cell Holder?
Yes, the holder is compatible with rechargeable batteries such as NiMH or Li-ion cells.
What is the maximum current the holder can handle?
The holder can handle up to 5A, but this depends on the battery type and wiring.
Can I connect multiple holders in parallel?
Yes, you can connect multiple holders in parallel to increase the current capacity, but ensure proper wiring and battery matching.
Is the holder waterproof?
No, the holder is not waterproof. Avoid exposing it to moisture or water.
The Cat Lithium 3 Cell Holder is a versatile and reliable component for securely holding and connecting three batteries in a circuit. Its robust design and compatibility with various battery types make it ideal for powering a wide range of electronic devices and projects. By following the usage instructions and best practices outlined in this documentation, users can ensure safe and efficient operation of the holder in their applications.
For further assistance, please contact the manufacturer or refer to the product datasheet.







