2-POWER pääakku-paketti korvaa L77991-005 - akku - 4 850 mAh

Keep your laptop running longer with this high-capacity main battery pack from 2-POWER. Delivering 4850 mAh of reliable Lithium-Ion power, it is the ideal replacement for the original L77991-005 battery, restoring full mobility and productivity to your portable device.

Advantages

Engineered with premium Li-Ion cells, this battery offers consistent performance and a long service life. Built-in protection circuits guard against overcharging, over-discharging, and short circuits, ensuring safe operation in daily use. The battery is fully rechargeable and designed to meet or exceed the specifications of the original part, providing a cost-effective alternative without compromising quality.

Suitable for

• Laptops and portable devices requiring battery part number L77991-005
• Users seeking a dependable replacement for a worn-out or failed original battery
• Professionals and students who need extended runtime away from power outlets

Key specifications

• Battery capacity: 4850 mAh
• Battery technology: Lithium-Ion (Li-Ion)
• Replaces OEM part number: L77991-005
• Rechargeable: Yes
• Condition: New
• Safety features: Overcharge protection, over-discharge protection, short circuit protection

Recommendations

For optimal performance, fully charge the battery before first use and calibrate it by running a complete discharge cycle once a month. Store the battery in a cool, dry place when not in use for extended periods.