ANTIEE 01AV445 L17L3P51 Battery Compatible with Lenovo ThinkPad

In this review the ANTIEE 01AV445 L17L3P51 battery is examined as a direct replacement for a range of Lenovo ThinkPad E and E-series laptops. The bottom line: this 11.1V, 45Wh Li-ion pack is aimed at users who need a straightforward, manufacturer-new replacement battery that restores run time without a premium price. The review focuses on compatibility, safety certifications, and real-world performance so a buyer can decide if it meets their needs for everyday productivity and travel.

Key Features

• Voltage and Capacity: The 11.1V, 45Wh (4050mAh) rating provides the same nominal power as many factory packs, which helps restore typical battery runtime for office tasks and web browsing.
• Compatibility: Listed fit for multiple ThinkPad E480/E490/E580/E590 and E14/E15 variants, making it a convenient spare for owners of several models in the E-series family.
• Condition and Chemistry: A 100% new Li-ion 3-cell construction reduces the chance of unexpected cell wear and maintains stable current for day-to-day use.
• Safety Certifications: UL, CE, FCC and RoHS certified, which supports safer charging behavior and lowers risk compared with uncertified alternatives.
• Endurance: ANTIEE states the battery can provide up to 500 charging cycles, offering a realistic lifespan for users who recharge daily.
• After-sales support: The 12-month warranty and 30-day money-back window mean there is recourse if the battery fails to match expectations.

Who It's For

This battery is best for owners of Lenovo ThinkPad E480, E485, E490, E495, E580, E585, E590, E595, E14 and E15 series laptops who need a like-for-like replacement to recover lost runtime. It is also suited to IT departments and technicians who service multiple E-series machines because a single SKU covers many type numbers.

It is less appropriate for users requiring extended ultralong battery life beyond the original specification or for those who need model-specific factory branding and packaging for warranty reasons. If you require the absolute maximum runtime per charge, a higher-capacity aftermarket pack (not described here) would be a better choice.

Pros & Cons

Pros

• Direct compatibility with many ThinkPad E-series types eliminates identification guesswork.
• Comes with required safety certifications, reducing concerns about charger protection and cell quality.
• Manufacturer-new Li-ion cells and a stated 500-cycle life provide reasonable longevity for typical users.
• Warranty and 30-day return policy offer practical buyer protection.

Cons

• Reported customer feedback on value is mixed, so perceived cost-effectiveness depends on individual expectations.
• Capacity matches the original spec but does not offer higher-than-stock runtime for power users.

Specifications

Our Verdict

The ANTIEE 01AV445 L17L3P51 is a practical, safety-certified replacement for ThinkPad E-series laptops that returns the original runtime without fuss. It is a sensible buy for users who want a direct swap with warranty backing and are content with stock capacity rather than seeking extended life. Given the certifications and support, it represents good value for routine productivity and travel use.

Frequently Asked Questions

Will this battery fit my ThinkPad E490?
Yes. The product lists compatibility with ThinkPad E490 series types 20N8 and 20N9, so it will fit those models.

How long will this battery last before capacity noticeably declines?
ANTIEE specifies up to 500 charging cycles as an expected life metric, so typical capacity decline should be gradual over many months of daily use.

What warranty and support are included?
The battery includes a 12-month warranty and a 30-day money-back policy, plus email support from ANTIEE's technical team.