GHU 48Wh Replacement Battery for Lenovo ThinkPad 70+

GHU's 48Wh 70+ replacement battery is a direct-fit power pack engineered to revive Lenovo ThinkPad T410/T420/T430/W510/W520/W530/L410/L420/L430 models with reliable runtime and UL-verified safety.

If your older ThinkPad shows short battery life or refuses to hold a charge, this GHU 48Wh replacement is made to match the original form, connector, and charge behavior for a broad range of Lenovo part numbers (0A36302, 0A36303, 42T4733, 45N1001 and many others). The pack offers an upgraded runtime compared with worn cells, more than 500 recharge cycles, and safety testing to industry standards so you can use your laptop for longer sessions away from power.

Which ThinkPad models and part numbers are compatible?

This GHU battery was designed to replace a wide set of Lenovo OEM part numbers used across several ThinkPad lines. It fits common T-, W-, L- and E-series models and replaces both 0A36302 and 0A36303 style batteries that are often labeled 70+.

• Compatible models: T410, T420, T430, W510, W520, W530, L410, L420, L430 and close variants.
• Replaces: 0A36302, 0A36303, 45N1001, 42T4733, 42T4235, 42T4757, 42T4731, 42T4737, 42T4753 and related numbers.
• Interchangeability: 0A36302 and 0A36303 are functionally interchangeable with this GHU 70+ unit.

How much runtime and longevity can I expect?

The battery is rated at 48Wh (10.8V, 6 cells) which restores typical mobile productivity for legacy ThinkPads. Real-world runtime depends on system load, but the pack is built for extended use and a long service life.

• Energy: 48Wh capacity for longer session times than degraded OEM packs.
• Cycle life: Designed for over 500 full charge cycles before significant capacity loss.
• Usage note: Actual minutes of runtime vary by CPU, screen brightness and connected devices.

Is this battery safe and how is it certified?

Safety is a priority: cells and the battery assembly meet UL testing protocols to reduce risk during normal use. The pack includes standard protection circuitry to prevent overcharge, over-discharge and short circuits.

• Certifications: UL-tested assembly for recognized safety standards.
• Protection features: Internal circuit protection against common battery faults.
• Installation: Simple swap with your original 70+ style battery; check the red dot marking if present to confirm the 70+ variant.

How do I install and get the best life from this replacement?

Installing is straightforward: power down, remove the original pack, and seat the GHU replacement until it clicks. Follow a few simple care steps to preserve capacity and cycle life.

• Install: Power off laptop, remove old battery, align and lock new pack in place.
• Initial charge: Fully charge before first heavy use to help battery calibration.
• Maintenance: Avoid extreme heat, calibrate occasionally, and store at partial charge for long-term storage.

Who is this for: The GHU 48Wh 70+ replacement battery is ideal for owners of older Lenovo ThinkPad laptops who need dependable, cost-effective power without upgrading the entire machine. It's a practical choice for business travelers, field technicians, students, and anyone running legacy T-, W- or L-series ThinkPads who wants restored mobile runtime and certified safety in a plug-and-play package.