What Battery Does an Alienware M17xR3 Take?
Alienware M17xR3
These are the battery part numbers observed in hardware reports for this model.
Battery
Part numbers
DELL 5WP5W14D— seen in 1 reportDELL 5WP5W14K— seen in 1 reportDELL 5WP5W15B— seen in 1 reportDELL 7XC9N17T— seen in 1 reportDELL 7XC9N1AE— seen in 1 reportDELL 7XC9N1AM— seen in 1 reportDELL 7XC9N1CT— seen in 1 reportDELL 7XC9N21C— seen in 1 report
Reports for this model and slot contain multiple part numbers. The reports do not establish that those parts are interchangeable.
- Manufacturer
- SDI, Simplo
- Capacities observed
- 90 Wh, 93.2 Wh, 73.3 Wh
- Voltage
- 11.10 V
- Chemistry
- Li-ion
Reports for this model and slot contain multiple capacities. Match the specifications on your existing battery and verify any change with the manufacturer.
Based on 9 reports.
Based on 9 independent hardware reports for the Alienware M17xR3.
- Match the exact part number printed on your current battery, or confirm a different number in the manufacturer’s service manual.
- Check voltage, connector, polarity, dimensions, and mounting points against the original battery.
- Make sure the seller names your exact laptop model or variant and offers a suitable return policy.
A part number appearing in these reports is an observation, not a guarantee that it fits every unit sold under the same model name.
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How we know
This answer is derived from 9 independent hardware reports for the Alienware M17xR3, of which 100% agree. We publish a model only when the reports agree overwhelmingly.
Check it yourself
On Windows, open a terminal and run powercfg /batteryreport, then open the generated HTML report — it names the battery’s model and part number. On Linux, run upower -i /org/freedesktop/UPower/devices/battery_BAT0. On any laptop, the surest method is the label printed on the battery itself, visible once you remove the back panel.
Other laptops reporting the same battery part number
These field reports contain an exact matching part number at the same observed voltage. That is useful evidence, but it does not guarantee the connector, dimensions, mounting points, firmware, or physical fit.
- Alienware M17xR4
DELL 7XC9N21C· 79.9 Wh / 90 Wh / 93.2 Wh · 11.10 V
Battery health and replacement signs
Short runtime, unexpected shutdowns, or a large drop from design capacity can justify a closer check; a charging fault does not by itself prove the battery is worn out. See how to check battery health, judge replacement signs, or diagnose a charging problem.
Alienware M17xR3 battery questions
What battery part number was reported for the Alienware M17xR3?
Hardware reports contain “DELL 5WP5W14D”, “DELL 5WP5W14K”, “DELL 5WP5W15B”, “DELL 7XC9N17T”, “DELL 7XC9N1AE”, “DELL 7XC9N1AM”, “DELL 7XC9N1CT”, “DELL 7XC9N21C”. Confirm the printed identifier and physical specifications on your installed battery before ordering.
What battery capacity was observed?
The reports contain 73.3 Wh, 90 Wh, 93.2 Wh. Multiple values can reflect variants or replacements, so match your own label rather than choosing capacity alone.
Does a matching part number guarantee fit?
No. Verify the exact laptop variant, voltage, connector, dimensions, mounting points, and manufacturer or seller documentation as well.
More Alienware laptops
Battery part numbers derived from linuxhw/DMI, licensed CC-BY-4.0.