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Small black rectangular lithium-polymer battery with short cable

NShi

NShi Y2RV2 2.8Wh 720mAh 3.7V laptop battery

SKU CH-2QVE-466ZA MPN Y2RV2

Lithium-ion replacement battery for Dell PowerEdge R710, R640, R740, R840 and R940 RAID controllers, 2.8 Wh at 3.7 V with short cable

  • Battery TypeLithium Polymer
  • Reliable RAID controller backup with 2.8 Wh capacity
  • Certified safe by CE UL FCC RoHS standards
  • Replaces Dell part numbers Y2RV2 J2RH2 NWJ48 3JH35 5FMY4
  • Fits PowerEdge R710 R640 R740 R840 R940 series
  • Over 500 recharge cycles for long service life

Replacement RAID controller battery

The NShi Y2RV2 is a 2.8Wh 720mAh 3.7V lithium-ion cell built to replace the cache-backup battery in Dell PowerEdge R710, R640, R740, R840 and R940 servers equipped with H740P or mini RAID controllers. It ships new and matches part numbers Y2RV2, J2RH2, NWJ48, 3JH35 and 5FMY4.

Sustained cache protection

Rated for more than 500 recharge cycles, the pack maintains voltage stability during extended power-loss events so the controller can flush write-cache to disk without data loss. Built-in circuit protection guards against over-charge, over-discharge and short-circuit conditions throughout the service life.

cable form factor

This unit uses the short-cable variant; the long-cable version exists for the same controller family and will not fit if the chassis requires the shorter lead. Verify the original battery shape against the product image before ordering.

Highlights

  • Reliable RAID controller backup with 2.8 Wh capacity
  • Certified safe by CE UL FCC RoHS standards
  • Replaces Dell part numbers Y2RV2 J2RH2 NWJ48 3JH35 5FMY4
  • Fits PowerEdge R710 R640 R740 R840 R940 series
  • Over 500 recharge cycles for long service life

Specifications

Battery TypeLithium Polymer

Questions about this item

Does the 3.7 V 2.8 Wh lithium-ion cell generate noticeable heat during continuous server operation?

The battery is a low-voltage 3.7 V 2.8 Wh cell designed for RAID controller cache backup; it produces minimal heat under normal continuous use.

Which Dell PowerEdge chassis and RAID controller models must already be present for the Y2RV2 short-cable version to connect?

Compatible systems include PowerEdge R710, R640, R740, R840, R940 and H740P mini controllers; the short-cable variant must match the existing battery connector and shape.

Will this replacement battery fit alongside the original Dell J2RH2 or NWJ48 module already installed in an R740?

Yes, the Y2RV2 replaces part numbers J2RH2, NWJ48, 3JH35 and 5FMY4 directly, provided the short-cable form factor matches the currently fitted unit.

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