Lithium batteries are restricted for air travel and may require a dangerous goods certificate with additional carrier fees. Ground shipping adds transit time — plan accordingly. Always check the date code, batteries degrade over time. Buy in bulk when possible, these are consumables. Key checks: Buy in bulk — consumables.
RESTRICTED for air — DG certificate required
PRODUCT OVERVIEW
The LENOVO 45N1149 is a Battery-Backed Write Cache pack, designed for enterprise RAID controllers in enterprise servers. It provides backup power to the BBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. This is a high-volume replacement part in TPM market as enterprise servers remain widely deployed.
WHERE IT FITS
BATTERY→LITHIUM→45N1149
SPECIFICATIONS
Type
Battery
Depth
51.5 mm
Width
206.2 mm
Height
20.1 mm
Weight
330 g
Product colour
Black
Battery voltage
10.8 V
Battery capacity
57 Wh
Battery technology
Lithium-Ion (Li-Ion)
Compatible products
ThinkPad T440p, L440, L540
Number of battery cells
6
Harmonized System (HS) code
84732990
COMPONENT DIAGRAM
KEY FEATURES
•
Battery-Backed Write Cache Module
•
Rechargeable Battery Technology
Provides cache backup power for 48+ hours after power loss
•
Hot-Plug Capable
TYPICAL APPLICATIONS
RAID cache protection during power loss events
Write-back cache enablement for storage controllers
Enterprise server data integrity assurance
Hot-swap battery/capacitor replacement in production
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FREQUENTLY ASKED QUESTIONS
What is 45N1149?
45N1149 is a Lenovo Thinkpad L440 T440p T540p L540 W540 W541 Battery manufactured by LENOVO. It is classified as a BATTERY (LITHIUM).
What parts can replace 45N1149?
There are 12 known substitutes for 45N1149: 0C52863, 121500215, 121500216 and 9 more. Substitute compatibility should be verified for your specific system.
Is 45N1149 still available?
45N1149 is currently Unknown.
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