The LENOVO 42T4911 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→42T4911
SPECIFICATIONS
Type
Battery
Product colour
Black
Battery voltage
10.8 V
Battery capacity
57 Wh
Quantity per pack
1 pc(s)
Battery technology
Lithium-Ion (Li-Ion)
Harmonized System (HS) code
84732990
Number of batteries included
1 pc(s)
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FREQUENTLY ASKED QUESTIONS
What is 42T4911?
42T4911 is a Lenovo ThinkPad Battery 70+ (6 cell) manufactured by LENOVO. It is classified as a BATTERY (LITHIUM).
What parts can replace 42T4911?
There are 15 known substitutes for 42T4911: 42T4793, 42T4852, 42T4795 and 12 more. Substitute compatibility should be verified for your specific system.
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