XTAR PC2

XTAR PC2 2-in-1 Battery Charger and Portable Power Bank

Model: PC2 | Brand: XTAR

Your essential companion for charging batteries and powering devices on the go.

1. Important Safety Information

Please read this manual carefully before using the XTAR PC2. Failure to follow instructions may result in fire, electric shock, property damage, or personal injury.

  • Disclaimer: Please mind potential fire risk and strictly follow the instruction manual for charging and storage.
  • Do not disassemble, modify, or short-circuit the device.
  • Keep away from water, fire, and high temperatures.
  • Use only compatible batteries and power adapters as specified.
  • Keep out of reach of children.
Diagram showing XTAR PC2 with various safety protections: over-current, short-circuit, overheat, reverse polarity, over-voltage, over-charge protection.

Figure 1: Patented Safe Technology protections built into the PC2.

2. Package Contents

  • 1x XTAR PC2 Charger and Power Bank
  • 1x USB-C Cable
  • 1x Accessory Bracket
  • 1x User Manual (this document)
  • 1x Pouch
Image showing the contents of the PC2 package: PC2 charger, USB-C cable, accessory bracket, manual, and pouch.

Figure 2: Contents included in the XTAR PC2 package.

3. Product Overview

The XTAR PC2 is a versatile 2-in-1 device designed to charge your Li-ion batteries and serve as a portable power bank for your electronic devices. It features a clear display for real-time status monitoring and supports a wide range of battery sizes.

Front and open view of the XTAR PC2 Charger and Power Bank, showing the display and two battery slots.

Figure 3: XTAR PC2 device overview.

Key Features:

  • Dual Functionality: Battery charger and portable power bank.
  • Wider Compatibility: Supports 3.6V/3.7V Li-ion/IMR/INR/ICR 18650/20700/21700 rechargeable batteries, including protected versions.
  • Intelligent Balance System: Prevents overheating and allows safe parallel charging/discharging.
  • Stable 5V/3A Output: Consistent power delivery for external devices.
  • Low-Current Mode: Ideal for charging small electronics like Bluetooth earphones.
  • Comprehensive Safety Protections: Overcharge, short circuit, overvoltage, overheat, reverse polarity, and over-current protection.
  • 0V Activation Function: Revives over-discharged batteries.
  • TC-CC-CV Three-stage Charging: Optimizes battery health and lifespan.
  • High Precision Auto Cut-off: Stops charging when batteries are full.
  • Clear Display: Shows battery status, voltage, and current.

4. Setup and Battery Installation

4.1 Battery Compatibility

The PC2 is compatible with 3.6V/3.7V Li-ion/IMR/INR/ICR 18650, 20700, and 21700 rechargeable batteries. It can also charge protected 18650/20700/21700 batteries.

4.2 Using the Accessory Bracket

For certain battery types, the included accessory bracket is required to ensure proper contact and secure positioning.

  • Need to insert the accessory bracket:
    1. All 18650 Flat & Button Top batteries.
    2. Unprotected flat-20700/21700 batteries.
    3. To keep your 18650 batteries in a fixed position, please rotate the rotary buckle and get it horizontal.
  • No need to insert the accessory bracket:
    • Protected 20700/21700 batteries.

Before charging the batteries listed under "Need to insert the accessory bracket", please insert the accessory bracket into the PC2 slots first.

Diagram illustrating when to use the accessory bracket for different battery types (18650, 20700, 21700) and how to position the rotary buckle.

Figure 4: Guide for accessory bracket usage and battery insertion.

5. Operating Instructions

5.1 Charging Batteries

  1. Connect the PC2 to a 5V 3A USB power adapter using the provided USB-C cable.
  2. Insert compatible Li-ion batteries into the slots, observing correct polarity (+/-). Refer to Section 4.2 for accessory bracket usage.
  3. The display will show the charging status, including voltage, current, and battery percentage.
  4. The PC2 uses TC-CC-CV three-stage charging for optimal battery health and will automatically cut off power when batteries are fully charged.
  5. A fast 18650 charger can fully charge 2pcs 2600mAh batteries within 1.5 hours. Ensure you use a 5V 3A output adapter to reach the maximum current.
Diagram showing the PC2 connected via USB-C to a 5V 3A power source, with a table indicating 'IN' for charging and 'OUT1 OUT2' for discharging, and a 100% power percentage display.

Figure 5: Charging the PC2 with a 5V 3A Type-C input.

5.2 Using as a Portable Power Bank

The PC2 can function as a portable power bank to charge external devices. Ensure charged batteries are inserted into the PC2.

  1. Connect your external device (e.g., smartphone, camera, Bluetooth headphones) to the PC2's Type-C or USB-A output port using an appropriate cable.
  2. The PC2 provides a consistent 5V/3A output.
  3. For low-current devices like Bluetooth headphones or USB lights, the PC2 can also provide suitable charging.
Image showing the PC2 acting as a power bank, charging a smartphone, wireless earbuds, and a small USB fan simultaneously via Type-C and USB-A ports.

Figure 6: PC2 used as a portable power source for multiple devices.

5.3 Display Information

The clear display shows real-time information:

  • OUT1 OUT2 IN: Indicates output for slot 1, output for slot 2, or input status.
  • Voltage (V): Displays the current battery voltage.
  • Current (A): Shows the charging or discharging current.
  • Percentage (%): Indicates the power percentage of one battery or the average power percentage of two batteries.
Image showing the PC2 display with 'OUT1 OUT2 IN', voltage, current, and percentage readings. Also highlights 0V Activation, TC-CC-CV Charging, and Auto Cut-off features.

Figure 7: Understanding the PC2's display and unique functions.

6. Maintenance

  • Clean the device regularly with a dry, soft cloth. Do not use abrasive cleaners or solvents.
  • Store the PC2 in a cool, dry place away from direct sunlight and extreme temperatures.
  • If not used for an extended period, remove batteries and store them separately.
  • Ensure the battery contacts are clean and free from debris for optimal performance.

7. Troubleshooting

  • Device not turning on/charging:
    • Ensure the USB-C cable is securely connected to a working 5V 3A power adapter.
    • Check if batteries are inserted correctly with proper polarity.
    • Verify that the batteries are compatible and not severely over-discharged (the 0V activation function may revive some, but not all).
  • External device not charging from PC2:
    • Ensure the batteries inside the PC2 are sufficiently charged.
    • Check the connection between the PC2 and the external device.
    • Try a different USB cable for the external device.
  • Overheating during operation:
    • The PC2 has an intelligent balance system to prevent overheating. If overheating occurs, immediately disconnect the power source and remove batteries.
    • Ensure proper ventilation around the device.
    • Do not use damaged or incompatible batteries.
  • Display not working:
    • Ensure the device is powered on or connected to a power source.
    • If the issue persists, contact customer support.

8. Specifications

Feature Specification
Model PC2
Input 5V 3A (USB Type-C)
Voltage Range USB (5-20V DC)
Output Power ≤37.5W
Output Current 3A
Constant Current (Charging) 2Ax1 / 1.5Ax2
End-of-Charge Voltage 4.20±0.05V
End-of-Charge Current ≤120mA
USB Output 5V 3A
Operating Temperature 0-40°C
Size (L×W×H) 125mm × 58mm × 28mm
Net Weight 85g
Table showing detailed specifications for the XTAR PC2, including model, input, constant current, end-of-charge voltage, end-of-charge current, USB output, operating temperature, size, and net weight.

Figure 8: Detailed product specifications for the XTAR PC2.

9. User Tips

  • This PC2 model is a stability-enhanced version of PB2SL V1 and uses the "ALLMAYBE" logo for differentiation.
  • Please note that this specific PC2 model does not support fast charging.
  • Always use a 5V 3A output adapter for optimal charging speed when charging batteries.
  • The intelligent balance system allows for safe parallel charging/discharging even with batteries of different capacities, but for best performance, use batteries of similar type and charge level.

10. Warranty and Support

For detailed warranty information and customer support, please refer to the official XTAR website or contact your retailer.

A comprehensive user manual in PDF format is available for download. You can access it via this link: XTAR PC2 User Manual (PDF).

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