OUWEE Laptop Battery L17C3P51 for Lenovo ThinkPad E14 E15

OUWEE L17C3P51 is a direct replacement 11.1V, 45Wh lithium‑ion battery designed to restore reliable runtime to compatible Lenovo ThinkPad E‑series laptops.

If your Lenovo ThinkPad E14, E15 or one of the E4xx/E5xx family is losing battery life or refuses to charge, this OUWEE replacement battery provides a cost‑effective option that meets original voltage and capacity specifications. Engineered for stable current delivery and tested to safety certifications, it fits the same battery bay as OEM part numbers like 01AV448, SB10K97609, L17M3P52 and related variants.

Which Lenovo models and part numbers does this battery support?

This OUWEE L17C3P51 battery is compatible with a broad range of ThinkPad E series machines from the E14/E15 Gen 1 (2019) line to several E480/E580 and E490/E590 variants. It replaces numerous factory part numbers so you can match it to your laptop’s existing label or the OEM code listed in system documentation.

• Compatible with: ThinkPad E14, E15 Gen 1 (2019); E480, E485, E490, E495, E580, E585, E590, E595.
• Replaces OEM numbers: 01AV448, SB10K97609, L17C3P51, L17M3P52, 01AV447, 01AV445, 01AV446 and related SKUs.
• Voltage & capacity: 11.1V, 45Wh (4120mAh) — matches original specs for proper operation.

How reliable and safe is this replacement battery?

OUWEE batteries are manufactured to meet safety and environmental standards and go through quality checks for true capacity and low self‑discharge. The cell chemistry and protections deliver stable current suitable for everyday productivity tasks without risky voltage swings.

• Certifications: UL, CE, FCC, RoHS compliant for electrical and environmental safety.
• Quality control: verified capacity, low self‑discharge and stable current output.
• Condition: new, black finish, built to fit OEM battery compartments precisely.

What should I do if the new battery isn't recognized or needs conditioning?

Occasionally a replacement battery may require a simple installation or conditioning routine to register with the laptop. Reinstall first to confirm a secure connection, then perform a few shallow charge/discharge cycles to allow the battery management system to normalize reporting.

• If not recognized: reseat the battery and ensure the connector is fully engaged.
• Conditioning tip: discharge to about 5% (do not drain to 0%), then fully charge; repeat 3–4 cycles.
• Support: contact OUWEE customer service for troubleshooting or warranty assistance.

Who this battery is for: If you own a Lenovo ThinkPad E14, E15 or one of the compatible E480/E580/E490/E590 series machines and need an affordable, compliant replacement to restore mobile runtime, the OUWEE L17C3P51 offers a direct fit and OEM‑spec performance. It suits students, remote workers, technicians and anyone who prefers to replace a worn battery without replacing the whole laptop. Backed by a 30‑day return policy and a 12‑month warranty, it delivers an economical path to extended device life with manufacturer support available via email.