Name: Lenovo ThinkPad 6 Cell Battery
Brand: LENOVO
SKU: 42T4702

42T4702 ✓ Verified by PartsTable

LENOVO · 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

The LENOVO 42T4702 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→ 42T4702

SPECIFICATIONS

Type	Battery
Depth	53.1 mm
Width	206.7 mm
Height	20.6 mm
Certification	UL
Product colour	Black
Battery voltage	10.8 V
Battery capacity	4800 mAh
Battery technology	Lithium-Ion (Li-Ion)
Compatible products	ThinkPad Edge E40, Edge E50, Edge 14", Edge 15", Edge E420, Edge E520 ThinkPad L410, L412, L420, L510, L512, L520, SL410, SL510, T410, T410i, T420, T420i, T510, T510i, T520, T520i, W510, W520
Number of battery cells	6

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

VERIFIED SUBSTITUTES & CROSS-REFERENCES 12

42T4638Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 25+ - FRU

compatible

42T4666Compatible

IBM Notebook Battery 6-Cell 57Wh 10.8V 5.2Ah Li-Ion - ThinkPad 25+ - FRU

compatible

42T4703Compatible

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - APN

compatible

42T4704Compatible

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

compatible

42T4705Compatible

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - APN

compatible

42T4706Compatible

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

compatible

LIFECYCLE

StatusUNKNOWN

Availability—

RoHS CompliantEAR99ESD SensitiveDG Class 9 — LithiumRestricted Air Freight

THIS PART SUBSTITUTES FOR 20

42T4638SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4666SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4703SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4704SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4705SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4706SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4707SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4708SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4709SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4731SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4732SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4733SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4734SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4735SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4736SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4737SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4738SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4751SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4752SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

42T4753SUBSTITUTE

IBM Notebook Battery 6-Cell 52Wh 10.8V 4.8Ah Li-Ion - ThinkPad 25+ - FRU

LENOVO

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FREQUENTLY ASKED QUESTIONS

What is 42T4702?

42T4702 is a Lenovo ThinkPad 6 Cell Battery manufactured by LENOVO. It is classified as a BATTERY (LITHIUM).

What parts can replace 42T4702?

There are 12 known substitutes for 42T4702: 42T4638, 42T4666, 42T4703 and 9 more. Substitute compatibility should be verified for your specific system.

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