1. Introduction
The XTAR C4-AA Charger is a 4-slot charger designed specifically for 1.5V AA Li-ion rechargeable batteries. This kit includes the C4-AA charger and either 4 or 8 XTAR 1.5V AA 4000mWh (2500mAh) Li-ion batteries. The charger features a built-in Type-C cable, a compact design, and efficient charging capabilities. The accompanying batteries offer a touch power display, constant high-power output, and a long lifespan, making them ideal for various high-power devices.
The C4-AA charger is engineered to precisely match the characteristics of XTAR 1.5V lithium batteries, ensuring stable and efficient charging to extend battery lifespan and maintain optimal device performance. It can charge four AA Li-ion batteries simultaneously, achieving a full charge in approximately 2 hours.
2. Package Contents
- C4-AA Charger ×1
- 1.5V AA 4000mWh (2500mAh) Li-ion Batteries ×4 or ×8 (depending on kit option)
- User Manual ×1
3. Product Overview
3.1. C4-AA Charger Features
- Minimalist Design: Features a built-in Type-C cable, a card-sized slim body, and a hollow heat dissipation structure.
- Built-in Cable: The C4-AA includes a high-quality, manufacturer-optimized charging cable for stable, efficient, and hassle-free power delivery.
- Effortless Cable Handling: The charging cable neatly slots into a built-in holder, precisely tailored for smooth deployment, easy stowage, and tangle-free use.
- Cool Fast Charging: The ventilated, open design enhances heat dissipation, reducing charging temperatures and extending battery life.
- Easy Battery Removal: Ample finger space is provided for effortless battery insertion and removal.
- Pocket-Sized Power: Compact and lightweight, it easily slips into a pocket or bag side pocket for convenient charging on the go.
3.2. 1.5V AA Li-ion Battery Highlights
- Touch Power Display: Lightly touch the positive pole of the battery; an LED will flash to indicate the remaining power level (4 levels).
- Constant High-Power Output: Provides a stable 1.5V output throughout its discharge cycle, supporting up to 3A discharge, suitable for high-power devices.
- True Capacity: Each battery offers a large capacity of 2500mAh (4000mWh).
- Four-in-One Protection: Integrated charge/discharge protection, Li-ion protection, and a touch-display chip ensure safety and peace of mind.
- Long Lifespan: Designed for 1200+ charge/discharge cycles, operates efficiently from -20℃ to 60℃, and supports 2.5-hour fast charging.
4. Setup
The C4-AA charger is powered by a universal USB-C port, allowing flexible connection to various power sources such as power adapters, computers, and power banks.
- Connect Power: Always connect the charger to a power source via its built-in USB-C cable first.
- Insert Batteries: After connecting the power, insert the 1.5V AA Li-ion batteries into the charging slots. Ensure correct polarity (+/-).
Important: Always connect the power first before inserting batteries. Reversing this sequence may prevent battery charging initiation.
5. Operating Instructions
5.1. Charging Batteries
- Once the charger is connected to power and batteries are inserted, charging will begin automatically.
- The C4-AA can charge four AA Li-ion batteries simultaneously, with a full charge typically achieved in approximately 2 hours.
- Battery LED Indicator:
- Flickering Green LED: Indicates that the battery is currently charging or being activated.
- Solid Green LED: Indicates that the battery is fully charged.
For the best user experience, it is recommended to use XTAR batteries equipped with indicator lights for instant, at-a-glance charging status.
5.2. Battery Power Display
To check the remaining power of the 1.5V AA Li-ion battery, lightly touch the positive pole. The integrated LED will flash to indicate the current power level (4 levels).
6. Maintenance
- Keep the charger away from humidity, water, and excessive dust.
- Clean the charger and batteries with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Store the charger and batteries in a cool, dry place when not in use.
- Avoid dropping or subjecting the charger and batteries to strong impacts.
7. Troubleshooting
- Charger not initiating charge: Ensure the power source is connected first, then insert the batteries. Reversing this order can prevent charging.
- Slow charging or inconsistent performance: Check if the power supply is sufficient. If the power supply is insufficient (e.g., low-power USB port), the charger may automatically reduce the charging current. Ensure you are using a 5V 2A power source.
- Battery not recognized: Ensure the battery is inserted with correct polarity. If the battery is deeply discharged (0V activation), the charger should automatically detect and activate it.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | XTAR |
| Model Number | C4-AA Set |
| Charger Model | C4-AA |
| Battery Type | Li-Ion |
| Battery Size | AA |
| Nominal Capacity (Battery) | 2500mAh (4000mWh) |
| Battery Quantity Options | 4PCS/8PCS |
| Set Type | Charger Sets |
| Charger Input | 5V ≟ 2A |
| Constant Charging Current | 0.5A x 4 |
| Dimensions (Charger) | L78 x W65 x H16 mm |
| Net Weight (Charger) | 33 g |
| Operating Temperature (Battery) | -20℃ to 60℃ |
| Certifications | CE, FCC, RoHS |
| High-concerned chemical | None |
9. Safety Warnings
- ⚠️️Fire Risk: Please mind potential fire risk and strictly follow the instruction manual for charging and storage.
- Disposal: For disposal, please check your local authority's website for more information and dispose of the lithium-ion battery safely in accordance with the applicable legal requirements.
- Incompatible Batteries: Do not charge batteries that are incompatible with this charger (e.g., non-Li-ion, different voltage).
- Adult Supervision: Children should use the charger only under adult supervision.
- Damage: Do not disassemble or use the charger if it is damaged.
- Environment: Do not use the charger in severe environments (e.g., extreme temperatures, high humidity).
- Usage While Charging: It is strictly forbidden to use the charger while charging.
- Moisture and Dust: Keep the charger away from humidity, water, and excessive dust.
10. User Tips
- For optimal charging performance and safety, the C4-AA charger should only be used with XTAR 1.5V lithium batteries that have an indicator.
- Always connect the power source to the charger before inserting batteries to ensure proper charging initiation.
- Utilize a reliable 5V 2A USB power adapter for consistent and fast charging.
- The compact size of the charger makes it highly portable; remember to secure the built-in cable in its slot when traveling.
11. Warranty and Support
11.1. Warranty Information
- Charger: Free replacement within 15 days of purchase. Free repair within 24 months.
- Batteries: Free replacement within 7 days of purchase. Free repair within 6 months.
- Damages caused by improper use are not covered by the warranty.
- If problems occur after the warranty period, we will offer free repair service but charge for used parts.
11.2. Technical Support
- Lifetime technical support is provided for this product.
- For more and updated information, please visit the official XTAR website: www.xtar.cc
- A user manual in PDF format is also available for download: User Manual (PDF)