Dell R8D7N Replacement Battery
- Brand:
- Dell
- Capacity Wh:
- 51 Wh
- Nominal Voltage:
- 11.4 V
- Expected Firmware State:
- full_function
Quick facts
R8D7N is a battery that fits 14 laptop models: Dell Latitude 5400, Latitude 5401, Latitude 5410, Latitude 5411, Latitude 5500 and 9 more. It is also sold as W8GMW, 49HG8, TNT6H, 0R8D7N.
| Part number | R8D7N |
|---|---|
| Part type | Battery |
| Also sold as | W8GMW, 49HG8, TNT6H, 0R8D7N |
| Capacity | 51 Wh |
| Voltage | 11.4 V |
| Cells | 3 |
| Last checked | 2026-10-06 |
Compatible models (14)
- Dell Latitude 5400
- Latitude 5401
- Latitude 5410
- Latitude 5411
- Latitude 5500
- Latitude 5501
- Latitude 5510
- Latitude 5511
- Latitude 5400 Chromebook Enterprise
- Precision 3540
- Precision 3541
- Precision 3550
- Precision 3551
- Inspiron 7591 2-in-1
Laptops compatible with R8D7N
Fits 14 laptops: 14 OEM confirmed, 0 seller listed, 0 reported by users.
Also sold as: W8GMW, 49HG8, TNT6H, 0R8D7N
Dell
- Dell Latitude 5400OEM confirmedMatched on: part number R8D7N
Inspiron
- Inspiron 7591 2-in-1OEM confirmedMatched on: part number R8D7N
Latitude
- Latitude 5400 Chromebook EnterpriseOEM confirmedMatched on: part number R8D7N
- Latitude 5401OEM confirmedMatched on: part number R8D7N
- Latitude 5410OEM confirmedMatched on: part number R8D7N
- Latitude 5411OEM confirmedMatched on: part number R8D7N
- Latitude 5500OEM confirmedMatched on: part number R8D7N
- Latitude 5501OEM confirmedMatched on: part number R8D7N
- Latitude 5510OEM confirmedMatched on: part number R8D7N
- Latitude 5511OEM confirmedMatched on: part number R8D7N
Precision
- Precision 3540OEM confirmedMatched on: part number R8D7N
- Precision 3541OEM confirmedMatched on: part number R8D7N
- Precision 3550OEM confirmedMatched on: part number R8D7N
- Precision 3551OEM confirmedMatched on: part number R8D7N
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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Dell Last updated: 2026-10-06
Dell R8D7N Replacement Battery Review
Dell R8D7N replacement battery: the 11.4V 51Wh 3 cell pack for the Latitude 5400, 5410, 5500 and 5510 and the Precision 3540 and 3550.
The R8D7N is the 3 cell 11.4V 51Wh pack for the Latitude 5400, 5401, 5410, 5411, 5500, 5501, 5510 and 5511 and the Precision 3540, 3541, 3550 and 3551. The trap is that the same laptops were sold with three different batteries: this one, a 15.2V 68Wh 3HWPP and a 7.6V 61Wh 4GVMP. Three voltages under one model name, so match R8D7N, or its alternates W8GMW, 49HG8 or TNT6H, on your old label. We expect full function.
Fitment answer
Parts-distributor listed fit, expected full function: the 3 cell 11.4V 51Wh R8D7N is the Dell OEM pack Parts-People lists for the Latitude 5400 to 5511 and the Precision 3540 to 3551.
Which laptops this fits
Dell Latitude: 5400, 5401, 5410, 5411, 5500, 5501, 5510, 5511, and the Latitude 5400 Chromebook Enterprise.
Dell Precision: 3540, 3541, 3550, 3551.
Dell Inspiron: 7591 2-in-1. Our catalog data also lists the Inspiron 7590, 7591 and 7791 2-in-1; the 7590 and 7791 are not on the Parts-People listing we read.
Source: Parts-People's Dell OEM listing.
What to check before you buy
This family shipped with three packs: R8D7N at 11.4V 51Wh, 3HWPP at 15.2V 68Wh and 4GVMP at 7.6V 61Wh. One model name, three voltages. Match the code on your old pack, not the Latitude model.
The wrong voltage pack causes early shutdown or a refusal to charge.
Part numbers this replaces
W8GMW, 49HG8 and TNT6H, per Parts-People's Dell listing, plus 0R8D7N.
Our data also lists 4GVMP, RF7WM and X77XY. 4GVMP is a 7.6V 61Wh pack for the same family, so we do not treat it as an alternate and have flagged those entries for review.
Safety and handling
A swollen pack means stop using the device now. Do not charge it, press on it, puncture it or pry at it with metal tools, and keep it out of water and household waste.
New packs ship at partial charge, around 30 percent, because air transport rules for lithium ion batteries require it. A pack that arrives low is correct, not faulty. Charge it fully before you judge it.
Recycle the old pack at an electronics or battery drop-off point. Never mail it back.
Age and condition
Lithium ion loses capacity on the shelf. Battery University's storage figures show roughly 96 percent retained after a year at 25C and 40 percent charge, against about 80 percent for a pack stored full. A pack that sat in a warehouse for years can arrive tired.
None of the listings we checked for this pack state a manufacture date code, so check the date printed on the label when it arrives. If the date is more than two years old, we would ask the seller for a fresher unit.
If this is not yours
If the label on your old pack does not read R8D7N, this page is not your answer. Use our battery finder at /laptop-batteries and search by your laptop's exact model number or by the code printed on the old pack.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Latitude 5400, 5410, 5500 and 5510 owners whose old pack reads R8D7N or W8GMW, 49HG8 or TNT6H
- Precision 3540 and 3550 owners on the 51Wh pack
Not for
- Machines fitted with the 4GVMP or 3HWPP
- Anyone matching on the Latitude model name alone
Specifications
What these specs mean| Brand | Dell |
|---|---|
| Battery Model Code | R8D7N |
| OEM Spare Part Number | R8D7N, 0R8D7N |
| Nominal Voltage | 11.4 V |
| Cell Count | 3 |
| Series Configuration | 3S |
| Capacity Wh | 51 Wh |
| Capacity Basis | OEM Label |
| Expected Firmware State | full_function |
| Shipping Classification | UN3481 |
| Compatible Models | Dell Latitude 5400, Latitude 5401, Latitude 5410, Latitude 5411, Latitude 5500, Latitude 5501, Latitude 5510, Latitude 5511, Latitude 5400 Chromebook Enterprise, Precision 3540, Precision 3541, Precision 3550, Precision 3551, Inspiron 7591 2-in-1 |
| Replaces Part Numbers | W8GMW, 49HG8, TNT6H |
FAQs
Can I fit the 68Wh 3HWPP in my Latitude 5400 instead?
It is a 15.2V 4 cell pack sold for the same family, not a like-for-like swap for the 11.4V R8D7N. We have no Dell source on fitting it in a machine built with the R8D7N, so we would not.
Why does my laptop say the battery is not genuine?
We have found no published source on how Dell firmware treats a non-Dell pack, so we cannot promise a third-party clone will run without a warning. An OEM R8D7N is what the machine shipped with and we expect it to run without warnings. If you see a warning, check the code and the voltage on the new label first.
Why did my new R8D7N arrive at 30 percent?
Because it has to. IATA rules in force since 1 January 2026 require lithium ion batteries like this 51Wh pack to travel by air at no more than 30 percent of rated capacity. A low pack on arrival is correct. Charge it to full in the laptop and run it through a normal cycle before deciding anything about its health.
Is the R8D7N the same as the 4GVMP?
No. The 4GVMP is a 7.6V 61Wh pack for the same Latitude 5400 and Precision 3540 family. The R8D7N is 11.4V 51Wh. Different voltage, different part.
Compare and read more
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