High Quality 11.4V 45Wh /3790mAh HP RH03XL Battery For HP ProBook 450 G8 ProBook 650 G8

Do you want to buy a cheap HP RH03XL Compatible battery? We offer you a cheap HP RH03XL Compatible battery - an incredibly high quality Compatible battery! All HP RH03XL are brand new,1 year Warranty, 100% Guarantee Quality and Fully Test!

✔ Battery for RH03XL Ships to Singapore

Product Overview

This battery is suitable as a replacement battery for HP ProBook 450 G8 ProBook 650 G8 battery and HP RH03XL model.

High capacity HP RH03XL battery for longer standby time.

The battery is professionally tested to ensure the best lifespan.

1 year warranty, 30 days money back, 100% brand new!

Battery capacity (mAh/A/W) may be different; the more mAh/A/W it displays, the higher its autonomy.

Safety certified CE / FCC / RoHS.

Key Features

• High‑capacity design with 45Wh /3790mAh for extended device runtime.
• Stable 11.4V output ensures consistent performance during daily use.
• Built with high‑quality lithium‑ion cells for improved durability and long cycle life.
• Advanced protection system including overcharge, over‑discharge, overheat, and short‑circuit safeguards.
• Optimized for reliable performance in warm and humid environments.
• Lightweight and compact design for easy installation and device compatibility.

Technical Specifications

Model	RH03XL
Battery Condition	Brand New Replacement Battery
Item Code	HPQ21AU1261
Category	Laptop Batteries
Brand	HP
Capacity	45Wh /3790mAh
Voltage	11.4V
Type	Rechargeable Li-ion battery
Color	black
Applies to	HP ProBook 450 G8 ProBook 650 G8
Certification	Passed CE, UL, ROHS, ISO 9001/9002 and GS certification
Service	Buy now, we promise a one-year warranty and 30-day returns

Compatible Models

Replacement Part Numbers:

• RH03XL
• HSTNN-DB0B

Compatible Models：

For HP ProBook 450 G8 ProBook 650 G8

* Please make sure that the replacement battery you are buying is suitable for your device brand and model.

Battery Care & Maintenance

• Store the battery in a cool, dry environment to maintain long‑term performance.
• Avoid exposing the battery to excessive heat or direct sunlight, especially in warm and humid climates.
• Use compatible HP chargers or certified charging accessories to ensure safe and efficient charging.
• Avoid frequent full discharges; partial charge cycles help extend overall battery lifespan.
• If the battery will not be used for an extended period, keep it at around 40–60% charge before storage.
• Clean the battery contacts periodically with a dry cloth to maintain stable power delivery.
• Do not puncture, crush, or expose the battery to water or high humidity.

Frequently Asked Questions