NShi L17M3P51 L17L3P51 L17C3P51 laptop battery 11.1V 45Whr 3-cell
Replaces multiple OEM batteries for Lenovo ThinkPad E14, E15, E480, E485, E490, E495, E580, E585, E590 and E595 with 11.1V 45Whr 3-cell lithium-ion power
- Battery type3 Cell Lithium-Ion
- Battery voltage rating11.1 V
- Battery capacity4054mah
- Product typeBattery
- Compatible with01AV445, 01AV446, 01AV447, 01AV448, L17C3P51, L17L3P51, L17M
- Compatible with Lenovo ThinkPad E14, E15 and E-series models
- 3-cell lithium-ion design delivers 45 Whr capacity for extended runtime
- 1 V output matches original voltage for stable operation
- Tested for correct voltage, circuit protection and low self-discharge
- CE, FCC and RoHS certified for safety compliance
Replacement battery for ThinkPad E-series
This 11.1V 45Whr lithium-ion pack replaces OEM part numbers including 01AV445, 01AV446, 01AV447, 01AV448, L17C3P51, L17L3P51, L17M3P51, L17M3P52, SB10K79606, SB10K97607, SB10K97608 and SB10K97609. It fits ThinkPad E14, E15, E480, E485, E490, E495, E580, E585, E590 and E595 models. The three-cell design delivers 4054mAh capacity for mobile professionals needing a direct swap. Built-in circuit protection and low self-discharge support reliable daily use.
Sustained discharge and thermal behaviour
The 11.1V nominal voltage remains stable during extended workloads thanks to tested circuit protection and stable current delivery. Low self-discharge chemistry preserves stored charge when the notebook sits idle for days. CE, FCC and RoHS certification confirm the pack meets safety limits for continuous operation. Capacity of 4054mAh translates to consistent run-time without the voltage sag seen in aged cells.
Installation notes and common pitfalls
The battery seats in the standard internal bay using the existing latch mechanism; no tools beyond a small Phillips driver are required. Verify the exact OEM part number on the original battery before ordering — several similar-looking packs exist for other ThinkPad series. Ensure the BIOS is updated to the latest version so the firmware recognises the new pack correctly. Do not force the connector; it keys in one orientation only.
How it compares
Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.
- Price $48.99
- Pricier than about 81% of the 27,790 comparable items (median $30.99).
Specifications
| Product | |
|---|---|
| Brand name | GreenTech |
| Model name | 01AV445, 01AV446, 01AV447, 01AV448, L17C3P51, L17L3P51, L17M3P51, L17M3P52, SB10K79606, SB10K97607, SB10K97608, SB10K97609 |
| Product type | Battery |
| Power | |
| Battery type | 3 Cell Lithium-Ion |
| Battery voltage rating | 11.1 V |
| Battery capacity | 4054mah |
| Compatibility | |
| Compatible with | 01AV445, 01AV446, 01AV447, 01AV448, L17C3P51, L17L3P51, L17M3P51, L17M3P52, SB10K79606, SB10K97607, SB10K97608, SB10K97609, Thinkpad E14, E15, E480, E485, E490, E495, E580, E585, E590, E595 |
Questions about this item
Does the 3-cell 45Whr pack run cooler during long sessions than the original battery?
The 3-cell lithium-ion design keeps self-discharge low and maintains stable current, so heat stays modest even after hours of use.
My ThinkPad E490 charges via USB-C — will this 11.1V 4054mAh unit connect without a new charger?
This battery replaces the internal pack (OEM 01AV445/446/447/448) and works with the laptop's existing charging circuit; no extra charger is required.
Can I keep the older 45Whr battery as a spare and swap it with this L17M3P51 without BIOS issues?
It matches the same 11.1V 3-cell specification as the original Lenovo packs (L17C3P51, L17L3P51, L17M3P52), so the system recognises it normally.
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