What Battery Does a Dell Vostro 5581 Take?
Dell Vostro 5581
These are the battery part numbers observed in hardware reports for this model.
Battery
Part numbers
DELL CYMGM8A— seen in 2 reportsDELL Y3F7Y6B— seen in 2 reportsDELL 1VX1H93— seen in 1 reportDELL 1VX1H95— seen in 1 reportDELL 1VX1H96— seen in 1 reportDELL FW8KR88— seen in 1 reportDELL VM73283— 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
- BYD, SMP, Samsung SDI
- Capacity
- 42 Wh
- Voltage
- 11.40 V
- Chemistry
- Li-ion
Based on 9 reports.
Based on 9 independent hardware reports for the Dell Vostro 5581.
- 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 Dell Vostro 5581, 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.
- Dell Inspiron 5480
DELL CYMGM8A· 42 Wh · 11.40 V - Dell Inspiron 5580
DELL CYMGM8A· 42 Wh · 11.40 V - Dell Latitude 3490
DELL CYMGM8A· 42 Wh / 56 Wh · 11.40 V - Dell Vostro 5481
DELL CYMGM8A· 38.8 Wh / 42 Wh · 11.40 V - Dell Inspiron 13-5368
DELL Y3F7Y6B· 39.9 Wh / 42 Wh · 11.40 V - Dell Inspiron 13-5378
DELL Y3F7Y6B· 38.8 Wh / 41 Wh / 42 Wh · 11.40 V - Dell Inspiron 13-7378
DELL Y3F7Y6B· 42 Wh · 11.40 V - Dell Inspiron 15-5578
DELL Y3F7Y6B· 40.5 Wh / 42 Wh · 11.40 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.
Dell Vostro 5581 battery questions
What battery part number was reported for the Dell Vostro 5581?
Hardware reports contain “DELL CYMGM8A”, “DELL Y3F7Y6B”, “DELL 1VX1H93”, “DELL 1VX1H95”, “DELL 1VX1H96”, “DELL FW8KR88”, “DELL VM73283”. Confirm the printed identifier and physical specifications on your installed battery before ordering.
What battery capacity was observed?
The reports contain 42 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 Dell laptops
Battery part numbers derived from linuxhw/DMI, licensed CC-BY-4.0.