HP CI03XL Replacement Laptop Battery – ProBook 640 G2/G3, 645 G2, 650 G2 and 655 G2

# HP CI03XL Replacement Laptop Battery – ProBook 640 G2, 640 G3, 645 G2, 650 G2 and 655 G2

### Restore Your HP ProBook's Portable Power

Is your HP ProBook battery draining too quickly, refusing to hold charge or switching off unexpectedly when unplugged?

The HP CI03XL replacement laptop battery is designed for compatible HP ProBook business laptops, offering a practical solution when the existing battery has deteriorated.

Whether you're working in an office, studying, managing business records or attending online classes, a properly matched replacement can help restore the convenience of battery-powered computing.

### 48Wh Rechargeable Lithium-Ion Battery

The CI03XL replacement battery family commonly features an 11.4V, 48Wh rechargeable lithium-ion design.

The 3-cell configuration is designed to provide electrical power to compatible HP ProBook laptops.

Actual battery backup depends on battery quality, screen brightness, system configuration, application usage and charging condition.

### Compatible HP ProBook Models

The CI03XL battery family supports selected laptops including:

- HP ProBook 640 G2
- HP ProBook 640 G3
- HP ProBook 645 G2
- HP ProBook 645 G3
- HP ProBook 650 G2
- HP ProBook 650 G3
- HP ProBook 655 G2
- HP ProBook 655 G3

Always confirm the original battery part number before buying, because configurations may differ within a model series.

### Compatible Battery Part Numbers

Common replacement references include:

CI03, CI03XL, CIO3, CIO3XL, CI03048XL, HSTNN-UB6Q, HSTNN-LB6T, HSTNN-PB6K, HSTNN-DB7N, 801554-001, 801517-221, 801517-241, 801517-421, 801517-541 and 801517-831.

### When Should You Replace Your Battery?

Battery replacement may be necessary when:

- Battery backup becomes unusually short.
- The laptop turns off unexpectedly when disconnected from the charger.
- Battery percentage drops rapidly.
- The system reports poor battery health.
- The existing battery can no longer hold adequate charge.

Similar symptoms can also be caused by a defective charger or charging circuitry. Proper diagnosis is recommended.

### Convenient Replacement Solution

A compatible CI03XL battery can help extend the useful life of your HP ProBook without replacing the entire laptop.

Its internal fitting is designed for compatible chassis and battery connectors.

Installation requires opening the laptop, so professional assistance is recommended if you're unfamiliar with computer hardware repairs.

### Technical Specifications

| Feature | Specification |
|---|---|
| Product | Replacement Laptop Battery |
| Compatible Brand | HP |
| Battery Model | CI03XL |
| HP Spare Number | 801554-001 |
| Accessory Reference | T7B31AA |
| Battery Technology | Lithium-Ion |
| Nominal Voltage | 11.4V |
| Energy Rating | 48Wh |
| Capacity | Approximately 4200mAh on selected versions |
| Battery Cells | 3 |
| Primary Models | 640 G2/G3, 645 G2, 650 G2, 655 G2 |
| Additional Compatibility | Selected 645/650/655 G3 models |
| Installation | Internal |
| Colour | Black |
| Rechargeable | Yes |
| Condition | New, if supplied as advertised |
| Warranty | According to the actual seller's policy |
| Package Contents | One replacement battery |

### Installation and Safety

Turn off the laptop completely and unplug the charger before opening the device.

Compare the original battery's label, voltage, connector, dimensions and mounting points with the replacement.

Do not bend, puncture, crush, overheat or short-circuit a lithium-ion battery.

Never install a swollen or visibly damaged battery. Dispose of old batteries through an appropriate collection or recycling service.

### Why Choose the HP CI03XL Replacement Battery?

The HP CI03XL offers a practical battery replacement option for compatible HP ProBook business laptops.

It is suitable for users who want to maintain their existing laptops for office work, educational activities, business administration and everyday computing.

**HP CI03XL Replacement Battery – Rechargeable Portable Power for Compatible HP ProBook 640, 645, 650 and 655 Series Laptops.**