AXIOM MEMORY 51J0500-AX Axiom Notebook Battery - Li-Ion Rechargeable - Compatible with Lenovo ThinkPad Edge 14/15/E420/E520
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Product Features
Technical Overview
This battery utilizes advanced lithium-ion chemistry, which offers higher energy density and lower self-discharge compared to older battery technologies. The 9-cell internal structure balances capacity with physical dimensions to fit the specific chassis of supported Lenovo laptops.
The proprietary form factor ensures mechanical compatibility, while the integrated charge controller manages safe charging cycles to maximize battery lifespan. Environmental compliance includes adherence to the Restriction of Hazardous Substances (RoHS) directive.
Relevant factors for this section include Application/Usage, Battery Rechargeable, Battery Size, Height. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
The Axiom 51J0500-AX delivers practical benefits for business and mobile users who rely on their ThinkPad Edge laptops for daily tasks. Its design prioritizes compatibility, performance, and environmental responsibility.
Seamless Compatibility
Engineered to match the exact dimensions and electrical interface of original Lenovo batteries, ensuring a hassle-free installation without modifications.
- Fits ThinkPad Edge 14, 15, E420, E520
- Replaces OEM part numbers 51J0500, 42T4710, 42T4712, 42T4714
Enhanced Mobility
The 9-cell lithium-ion construction provides extended runtime, reducing the frequency of recharges and supporting longer work sessions away from power outlets.
- Li-Ion chemistry for higher energy density
- Rechargeable design eliminates disposable battery waste
Environmental Responsibility
Manufactured in compliance with RoHS standards, restricting hazardous substances like lead, mercury, and cadmium for safer disposal and reduced environmental impact.
- RoHS compliant
- Rechargeable reduces landfill waste
Deployment / Use Cases
This battery is ideal for IT departments, business users, and educational institutions that maintain fleets of Lenovo ThinkPad Edge laptops. It serves as a cost-effective maintenance part to extend the usable life of existing hardware.
Common deployment scenarios include replacing worn-out batteries in corporate laptops, upgrading older systems for improved mobility, and maintaining compatibility for standardized IT assets. The proprietary fit ensures reliable performance in field sales, remote work, and classroom environments where consistent battery life is critical.
Relevant factors for this section include Application/Usage, Battery Rechargeable, Battery Size, Height. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Physical Profile
The battery measures 8.15 inches wide by 3.07 inches deep by 0.79 inches high, with a weight of approximately 14.5 ounces. This compact, proprietary form factor is designed to integrate smoothly into the laptop chassis without adding bulk or compromising portability.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 0.79" (20.10 mm), 8.15" (206.92 mm), 3.07" (78 mm), 14.50 oz (410.95 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 8.15" (206.92 mm)
- Depth
- 3.07" (78 mm)
- Height
- 0.79" (20.10 mm)
- Weight
- 14.50 oz (410.95 g)
Highlights
- Direct replacement for Lenovo ThinkPad Edge 14, 15, E420, and E520 laptops
- Rechargeable lithium-ion (Li-Ion) battery with 9-cell configuration
- Proprietary size ensures exact fit without modification
- Compatible with OEM part numbers 51J0500, 42T4710, 42T4712, 42T4714
- RoHS compliant for reduced environmental impact
- Compact dimensions: 8.15" x 3.07" x 0.79" (206.92 x 78 x 20.10 mm)
- Lightweight at approximately 14.50 oz (410.95 g)
- Engineered for reliable power delivery and extended runtime
Specifications
| Specifications | |
|---|---|
| Manufacturer | Axiom Memory Solutions |
| Manufacturer Part Number | 51J0500-AX |
| Brand Name | Axiom |
| Product Name | Notebook Battery |
| Product Type | Battery |
| Battery Information | |
| Application/Usage | Notebook |
| Battery Rechargeable | Yes |
| Battery Size | Proprietary Battery Size |
| Battery Chemistry | Lithium Ion (Li-Ion) |
| Number of Cells | 9 |
| Physical Characteristics | |
| Height | 0.79" (20.10 mm) |
| Width | 8.15" (206.92 mm) |
| Depth | 3.07" (78 mm) |
| Weight (Approximate) | 14.50 oz (410.95 g) |
| Miscellaneous | |
| Compatible to OEM Part Number | 51J0500 42T4710 42T4712 42T4714 |
| Brand Compatibility | Lenovo |
| Compatibility | Lenovo - ThinkPad Edge 14 Lenovo - ThinkPad Edge 15 Lenovo - ThinkPad Edge E420 Lenovo - ThinkPad Edge E520 |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
FAQ
Which Lenovo laptop models is this battery compatible with?
This Axiom 51J0500-AX battery is specifically compatible with Lenovo ThinkPad Edge 14, ThinkPad Edge 15, ThinkPad Edge E420, and ThinkPad Edge E520 models. It replaces original OEM part numbers 51J0500, 42T4710, 42T4712, and 42T4714, ensuring a direct fit and electrical compatibility for these laptops.
What type of battery chemistry does this product use?
The battery uses lithium-ion (Li-Ion) chemistry, which provides higher energy density, lower self-discharge rates, and longer lifespan compared to older battery technologies like NiMH. This makes it suitable for modern notebooks requiring reliable, rechargeable power for mobile use.
Is this battery rechargeable, and how many cells does it have?
Yes, this is a rechargeable battery designed for repeated charging cycles. It features a 9-cell configuration, which balances capacity and physical size to deliver extended runtime while fitting the proprietary form factor of compatible Lenovo ThinkPad Edge laptops.
What are the physical dimensions and weight of this battery?
The battery measures 8.15 inches in width, 3.07 inches in depth, and 0.79 inches in height (206.92 x 78 x 20.10 mm). It weighs approximately 14.50 ounces (410.95 grams). These proprietary dimensions ensure it fits precisely into the battery compartment of supported laptops.
Does this battery meet any environmental standards?
Yes, this battery is manufactured in compliance with the Restriction of Hazardous Substances (RoHS) directive. This means it restricts the use of hazardous materials like lead, mercury, and cadmium, making it environmentally friendly and safer for disposal compared to non-compliant alternatives.
How does this battery compare to the original Lenovo battery?
The Axiom 51J0500-AX is engineered as a direct replacement, matching the proprietary size, electrical specifications, and performance of the original Lenovo batteries. It uses the same lithium-ion chemistry and 9-cell design, providing equivalent runtime and compatibility while often offering a cost-effective alternative for maintenance and upgrades.
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