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Product Code: BTEL-3521
MPN #: 42T4877-BTI
Product Condition: New
Running out of power mid-task is frustrating, especially when you rely on a portable device for work or study. The Battery Technology BTI 42T4877 compatible 63Wh 6-cell battery for Battery gives you a reliable, high-capacity power source that keeps your laptop running longer without hunting for an outlet. It’s a direct replacement that restores full performance and lets you stay productive wherever you are.
This 63 Wh battery fits seamlessly into a typical workday, powering your Lenovo laptop through meetings, travel, and coffee breaks. Its long runtime means you can finish reports, attend video calls, and edit documents without the anxiety of a sudden shutdown.
Choosing this battery means you’re not compromising on quality. It matches the original specifications, so your device retains its designed power management and battery life. The 6-cell construction provides a stable voltage of 10.8 V, ensuring your laptop receives the correct power throughout its charge cycle. With a capacity of 5800 mAh, you can trust it to handle demanding applications such as video conferencing, data analysis, and light gaming without frequent recharging.
| Features | |
| Brand compatibility | Lenovo |
| Product colour | Black |
| Battery capacity | 63 Wh |
| Battery voltage | 10.8 V |
| Number of battery cells | 6 |
| Battery | |
| Battery capacity | 63 Wh |
| Battery technology | Lithium-Ion (Li-Ion) |
| Packaging data | |
| Number of batteries included | 1 pc(s) |
| Summary Details | |
| Battery capacity | 5800 mAh |
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We are retiring PICOPC Products MNHO-073, MNHO-048 and MNHO-043 and they have reached EOL (End Of Life) as we are introducing new products with better technology. We would recommend you to look into MNHO-095. For Untangle, pfSense, OPNsense, Windows 11, Proxmox VE etc. we recommend MNHO-095 whereas for Sophos, Kerio Control and Endian, we would recommend MNHO-069. (A complete list of supported OS can be found in each product's listing)