875241-B21 is the HPE option part number for 96W Smart Storage Battery (up to 20 Devices/145mm Cable) Kit. It is the orderable kit for adding battery backup to a supported HPE server, supporting up to 20 devices and shipping with a 145mm cable. The 145mm cable length determines where the battery can mount relative to the controllers it backs, so match the cable length to your chassis routing before ordering. HPE lists this kit as compatible with the DL560 Gen10 and DL580 Gen10. If you are configuring flash-backed write cache on either platform, this is the battery kit and cable combination to specify.
HPE Option Part #: 875241-B21
PRODUCT SPECIFICATIONS FOR 875241-B21:
- Device Type: Battery backup
COMPATIBLE WITH:
PROLIANT DL SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
FREQUENTLY ASKED QUESTIONS ABOUT 875241-B21
Which servers does 875241-B21 support?
HPE lists this kit as compatible with the ProLiant DL560 Gen10 and DL580 Gen10. Both are Gen10 platforms, and the kit is specified as part of their configuration options. If your build is on a different generation or model, confirm the correct battery and cable kit for that platform rather than assuming this one carries over, since cable length and routing differ between chassis.
What does the 96W rating and 20-device figure mean in practice?
The 96W Smart Storage Battery is rated to back up to 20 devices, meaning a single battery can serve multiple Smart Array controllers in the same server rather than requiring one battery per controller. That matters on the DL560 Gen10 and DL580 Gen10, which are dense platforms that can carry several storage controllers in one chassis under a single battery.
Why is the cable length called out in the part number?
HPE ships the 96W Smart Storage Battery in kits with different cable lengths, because the distance between the battery mounting position and the controllers varies by chassis. This kit includes a 145mm cable. Ordering the wrong cable length gives you a battery that will not reach its intended connection point, so the length is treated as part of the ordering identity.
Is 875241-B21 a complete kit or just the battery?
It is a kit: the 96W Smart Storage Battery together with the 145mm cable. That means it is orderable as a single line item for a new build or an expansion, without needing to source the interconnect separately. Verify the cable length suits your chassis routing on the DL560 Gen10 or DL580 Gen10 before you place the configuration.
What is the difference between an option part number and a spare?
875241-B21 is the option part number, which is the number HPE uses for orderable, configurable kits and the number that typically appears in server configuration tools and quotes. Spare part numbers identify the same physical hardware as a service replacement. If you are building or expanding to a configuration, the option number is the one to reference.
HPE PARTSURFER INFO FOR 875241-B21
| Spare PN | Description | |
|---|---|---|
| 871264-001 | 96 W Smart Storage Battery - One battery pack provides Flash-Based Write Cache (FBWC) for all the drive controllers in the server - Connects to the system I/O board, 145 mm (5.7-inch) long cable - Version 3 ; | |
 | 878643-001 | 96 W Smart Storage Battery - One battery pack provides Flash Back Write Cache (FBWC) for all the drive controllers in the server - Connects to the system I/O board, 145 mm (5.7-inch) long cable ; |
Last Updated: 2026-04-26
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This product is warrantied against hardware failure for a period of 1 Year from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
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