ANTIEE Lenovo IdeaPad 11.25V 42Wh Laptop Battery

ANTIEE L21-series 11.25V 42Wh Li-Polymer replacement battery built to restore runtime for compatible Lenovo IdeaPad 14 and 15 models.

If your IdeaPad’s original battery no longer holds a charge, this ANTIEE replacement is a direct-fit, brand-new Li-Polymer pack engineered to match the factory voltage and connectors. It uses high-quality cells and a smart protection circuit to deliver stable current, low self-discharge, and around 500 recharge cycles under normal use. The pack is compatible with multiple Lenovo part numbers (L21M3PF0, L21M3PF1, L21D3PF0, L21L3PF0, L21C3PF0 and related SB11/5B11/SB11N references) and fits a wide range of IdeaPad 14- and 15-inch models.

Which Lenovo notebooks will this ANTIEE battery work with?

This battery is designed as a direct replacement for various IdeaPad 14- and 15-inch lines. It supports multiple factory part numbers and several model families, ensuring compatibility across recent IdeaPad configurations.

• Fits IdeaPad 1-14ALC7, 14IAU7, 14IGL7, 14IJL7, 14ADA7, 14AMN7 series.
• Compatible with IdeaPad 1-15ADA7, 15IGL7, 15IJL7, 15IAU7, 15ALC7, 15AMN7, 15IRU7 models.
• Replaces OEM part numbers including L21M3PF0/L21M3PF1/L21D3PF0/L21L3PF0/L21C3PF0 and equivalent SB11/5B11/SB11N references.

How does the battery perform in daily use and longevity?

The ANTIEE pack delivers the rated 11.25V and 42Wh capacity, suitable for everyday productivity tasks and media playback. Its built-in protection circuitry helps prevent overcurrent and overvoltage situations while minimizing self-discharge when idle.

• Rated 42Wh (3735mAh) capacity for typical laptop runtimes.
• Smart circuit board for stable current and safety protections.
• Expected life of roughly 500 full recharge cycles with proper charging habits.
• CE, FCC and RoHS conformity for regulatory compliance.

What technical specifications and safety features are included?

This replacement uses Li-Polymer cells matched to the original voltage and form factor. Each unit is tested for correct voltage, circuit protection, and low self-discharge before shipping.

• Specification: 11.25V, 42Wh (3735mAh), Li-Polymer chemistry.
• Top quality materials and premium circuit components to ensure stable output.
• Undergoing rigorous testing: voltage accuracy, short-circuit protection, and discharge limits.
• Certifications and safety: CE, FCC, RoHS compliant.

What customer support and warranty come with the ANTIEE battery?

ANTIEE provides after-sales support and a limited warranty to help address installation or performance questions. Support is reachable through the order platform and the brand offers timely responses to inquiries.

• 12-month limited warranty covering manufacturing defects.
• 24/7 email support with typical response within 24 hours via the orders page.
• Clear return and replacement procedures for eligible issues.
• Installation guidance available if you need help swapping the pack.

Who is this for: This ANTIEE L21-series replacement battery is aimed at Lenovo IdeaPad owners who need a reliable, cost-effective way to restore portable runtime without replacing the whole laptop. It's appropriate for students, remote workers, and anyone using supported 14" and 15" IdeaPad models who wants OEM-equivalent voltage, safety protections, and a straightforward swap-in fit. If you require exact part-number matching and tested safety features, this battery offers a practical, warranty-backed solution.