BoYata
BoYata 2 in 1 accessory 44Wh 10.8V for ThinkPad T440P T540P L440 L540 W540 W541
Replacement 10.8V 44Wh Li-ion battery compatible with ThinkPad T440P, T540P, L440, L540, W540 and W541 series
- 44 Wh Li-ion cell delivers extended runtime
- 8 V output matches original ThinkPad specifications
- Replaces Lenovo part numbers 45N1144 through 45N1163
- Fits T440P T540P L440 L540 W540 W541 series
- Brand new battery with 12 month coverage
44 Wh Li-ion battery for ThinkPad T440P series
This 10.8 V lithium-ion pack replaces Lenovo part numbers 45N1144 through 45N1163 and fits ThinkPad T440P, T540P, L440, L540, W540 and W541 models. It delivers 44 Wh capacity to restore mobile runtime on compatible machines.
Check connector and part number before ordering
Verify the battery connector on your laptop matches the replacement by comparing it with the product images, as cable length and interface can vary between factories. Confirm your original part number is in the 45N1144 to 45N1163 range for proper fit.
Thermals noise and power in daily use
The battery operates silently with no moving parts and generates minimal heat during normal charge and discharge cycles. Power draw follows the laptop’s own management system, and the 10.8 V output matches the original specification for stable operation.
Highlights
- 44 Wh Li-ion cell delivers extended runtime
- 8 V output matches original ThinkPad specifications
- Replaces Lenovo part numbers 45N1144 through 45N1163
- Fits T440P T540P L440 L540 W540 W541 series
- Brand new battery with 12 month coverage
Specifications
No published specifications for this item yet.
Questions about this item
Does the BoYata 44Wh 10.8V battery ship with any tools or cables, or must I buy them separately?
The listing describes the battery only; no tools, cables or additional accessories are mentioned, so plan to reuse the screws and connector from your ThinkPad T440p, T540p, L440, L540, W540 or W541.
The supplier title shows both 44Wh and 48Wh — which capacity should I choose for my ThinkPad?
The detailed specifications list 44Wh (4400mAh) at 10.8V; treat the 48Wh figure in the title as a reference to the original Lenovo part numbers 45N1144 through 45N1163 rather than a second option.
What does the 44Wh rating mean for real-world runtime on a ThinkPad T440p?
A 44Wh lithium-ion pack at 10.8V typically delivers several hours of mixed office use on these models; actual life depends on screen brightness, workload and battery health, so cycle the pack to 5% then fully charge 3–4 times to reach full capacity.
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