PSA 2-Power 4750mAh 54.8Wh Battery

Battery life running out at the worst moment can ruin a busy day. The PSA 2-Power 4750mAh 54.8Wh Battery is a replacement notebook battery designed to keep your laptop powered for longer, letting you work, study or stream without hunting for a wall socket. It fits laptops that use the Lenovo 5B11K39362 equivalent, giving you reliable power when you need it most.

Benefits of PSA Battery

You enjoy faster charging, so downtime is minimal and you can get back to tasks quickly. The high-grade cells provide steady performance, reducing the risk of sudden shutdowns. Built-in SmartWatch Protect monitors charge cycles, shielding your device from overheating and short circuits. The one-year limited warranty gives peace of mind, knowing any defects will be handled promptly. Its lightweight design adds little extra bulk, keeping your notebook portable.

Key Features of a 4750mAh Battery

• Capacity: 4750 mAh - delivers extended run-time for demanding applications.
• Energy: 54.8 Wh - supplies ample power for full-day use on a single charge.
• Voltage: 11.55 V - matches original specifications for optimal compatibility.
• Technology: Lithium polymer - offers a stable, long-lasting power source.
• Weight: 14.11 oz - light enough to maintain the notebook’s portability.
• OEM Equivalent: Lenovo 5B11K39362 - ensures a perfect fit for supported models.
• Warranty: Limited 1-year - protects your investment with manufacturer support.
• Packaged Quantity: 1 - ready to replace the old battery immediately.
• Product Type: Notebook battery - designed specifically for laptop use.
• Service & Support: 1-year warranty - includes assistance for any issues that arise.

Usages of a 4750mAh Battery

A reliable power source for everyday laptop work:

• Working from home or in a café where outlets are scarce.
• Attending online classes or webinars without interruption.
• Traveling on trains or planes, keeping the device alive for hours.
• Using high-performance software such as video editing tools.
• Gaming or streaming media during long sessions away from power points.

Why Choose a PSA Battery

Many buyers worry that third-party batteries won’t match the performance or safety of the original. Concerns about short-circuiting, overheating and reduced lifespan often lead to hesitation. PSA addresses these doubts by using high-grade cells from reputable manufacturers like Samsung and Panasonic, and by integrating SmartWatch Protect to continuously monitor charging health. The battery’s specifications mirror the OEM’s, ensuring seamless compatibility and dependable power.

By choosing this PSA 2-Power replacement, you avoid the common mistake of opting for cheap, low-capacity alternatives that drain quickly and risk damage. The 4750 mAh capacity, 54.8 Wh energy rating and built-in safety features give you confidence that your notebook will stay powered throughout the day, backed by a solid one-year warranty.

Specifications