Futurebatt PA5107U-1BRS Laptop Battery for Toshiba Satellite

Futurebatt PA5107U-1BRS is a direct-fit, 14.8V / 37Wh replacement battery designed to restore portable power to a wide range of Toshiba Satellite L45, L50, L55, P50/P55 and S55 laptops.

When your Toshiba laptop no longer holds a reliable charge, swapping in a quality replacement battery can bring back hours of untethered use. This Futurebatt battery uses Grade A cells and a smart protection board to deliver stable voltage, efficient charging, and safety features commonly found in higher-end OEM packs. It fits the factory battery bay and cross-references common Toshiba part numbers, making installation straightforward for most users.

How does the Futurebatt battery match my Toshiba model?

This battery is engineered to match the physical connector, voltage and mounting points of many Toshiba Satellite models including L45, L50, L55, P50/P55 and S55 series variants. It lists compatible Toshiba part numbers to help you confirm fit before purchase.

• Model designation: PA5107 compatible with PA5107U-1BAS and PSKLNA variants.
• Fits specific model lines: L45/L45D, L50, L55/L55D/L55T, P50/P55 and S55 series.
• Cross-reference friendly: includes internal part codes like P000573230 and YD021621U.

What performance and safety features does it provide?

The pack uses Grade A lithium cells to deliver 37Wh at 14.8V, balancing runtime and charge efficiency. A built-in protection circuit helps prevent overcharging, over-discharge, overheating and short circuits — increasing on-the-go reliability without adding unnecessary bulk.

• Capacity: 37Wh for typical mobile productivity sessions.
• Voltage: 14.8V to match the original factory specification.
• Protections: overcharge, over-discharge, over-temperature and short-circuit safeguards.
• Cycle life: designed for up to ~500 charge cycles with proper care.

How easy is installation and what support is available?

Installation is simple for users comfortable removing the old battery — the pack is a drop-in replacement with the same contact layout. Futurebatt backs the product with a 30-day refund window and a 12-month replacement warranty, plus responsive email support for troubleshooting.

• Installation: drop-in physical fit for compatible Satellite models.
• Support: 30-day refund and 12-month replacement policy.
• Customer help: 24-hour email assistance from Futurebatt.

Will this battery affect charging speed or laptop behavior?

The battery uses quality cells and a matching voltage, so charging times and system monitoring should remain comparable to the original pack. As with any replacement cell, occasional calibration of your system's battery meter can help restore accurate time and percentage readings.

• Charging: compatible with existing laptop charger and charging circuitry.
• Monitoring: recalibrate battery statistics if readings appear inaccurate.
• Compatibility note: firmware or BIOS differences on some machines can affect reporting — check Toshiba support if needed.

Who is this for? If you own a compatible Toshiba Satellite (L45, L50, L55, P50/P55 or S55 family) and need a reliable, cost-effective replacement battery that restores mobility without replacing your laptop, this Futurebatt PA5107U-1BRS is designed for you. It suits students, mobile professionals and anyone who wants an OEM-style fit with safety protections and a one-year replacement policy. Verify model and part number compatibility before ordering to ensure a proper fit.