Name: ThinkPad Battery 55+ (6 Cell)
Brand: IBM
SKU: 57Y4185

57Y4185 ✓ Verified by PartsTable

IBM · BATTERY · LITHIUM

WHAT YOU NEED TO KNOW

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

Stay unplugged longer with ThinkPad Battery 55+ and ThinkPad Battery 55++. These rechargeable batteries use Lithium-Ion (Li-Ion) technology and can be used as replacement for aging system batteries or as a convenient spare battery. Features & Benefits: - Lithium-Ion (Li-Ion) technology - Six-cell, rechargeable system battery, 57Wh - Standard system battery specifications - Over-discharge protection Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

BATTERY→ LITHIUM→ 57Y4185

SPECIFICATIONS

Type	Battery
Depth	56 mm
Width	208 mm
Height	20 mm
Weight	340 g
Certification	CE MARK, UL/cUL, ACA/C-Tick, PSE, KC
Product colour	Black
Battery technology	Lithium-Ion (Li-Ion)
Brand compatibility	Lenovo
Compatible products	ThinkPad L412, L512, T410, T510, W510
Number of battery cells	6
Harmonized System (HS) code	84732990

COMPONENT DIAGRAM

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

VERIFIED SUBSTITUTES & CROSS-REFERENCES 12

42T4791Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 55+ - FRU

compatible

42T4792Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 55+ - APN

compatible

42T4793Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 55+ - FRU

compatible

42T4794Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 55+ - APN

compatible

42T4795Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 55+ - FRU

compatible

42T4796Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 55+ - APN

compatible

LIFECYCLE

StatusUNKNOWN

Availability—

RoHS CompliantEAR99ESD SensitiveDG Class 9 — LithiumRestricted Air Freight

THIS PART SUBSTITUTES FOR 20

42T4790SUBSTITUTE