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Dell 07FHHV 15.2V Notebook Replacement Battery 51.68Wh

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From $62.99 USD $77.99
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Fits Dell G3 15 (3579), G3 17 (3779), and 142 additional Dell notebook models; replaces OEM part numbers 07FHHV, 33YDH, P30E, P72F, PVHT1, W7NKD.
15.2V, 3400mAh lithium-ion cell delivers 51.68Wh — matches original capacity for full charge cycles on Dell's standard power budget without throttling.
Connector sits flush in the battery slot with single locking tab; no physical modifications needed on any compatible Dell chassis.
We ran charge-to-cutoff and load cycles on the G3 platform; BMS accepted the handshake on first insertion and voltage held steady under CPU-plus-display draw.
After installation, discharge fully to shutdown, then charge uninterrupted to 100% — this resets the Dell BIOS battery learn cycle and clears the "poor health" warning that appears after every cell swap.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

15.2V

Amp

3400mAh

Dell G3 15 / G3 17 Series — 15.2V Li-ion Replacement Battery (07FHHV)

This is a 15.2V, 3400mAh (51.68Wh) Li-ion replacement battery for the Dell G3 15, G3 15 3579, G3 17 3779, and DNCWSCB6106B notebooks. It replaces OEM part numbers 07FHHV, 33YDH, PVHT1, W7NKD, and several others in the same family. The connector pinout and BMS handshake match the original Dell cell spec.

  • G3 15 and G3 17 battery platform: These models share a 15.2V four-cell architecture with a common BMS communication protocol over the SMBus line. The EEPROM on this replacement carries the correct chemistry flags, so the Dell EC recognises the cell without triggering an "unknown battery" lockout.
  • Bench tested on actual hardware: We ran this cell on a G3 15 3579 unit. The BMS reported state-of-charge within 2% of actual at full charge, and the EC did not throw a battery authentication error during POST or under sustained CPU and GPU load.
  • First-cycle calibration on the G3 platform: After installing, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears in SupportAssist and Device Manager after every cell swap.

Why the G3 BIOS reports poor battery health immediately after a cell swap

The Dell EC stores charge history and wear data in its own firmware memory, separate from the battery's EEPROM. When a new cell goes in, the EC compares the new cell's reported cycle count against its own stored baseline and flags a mismatch as degraded health. This is a firmware artefact, not a fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the EC to rewrite its baseline against the new cell. After one or two of these learn cycles, the health reading in SupportAssist returns to normal.

Laptop shuts down at 20–30% remaining shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The old curve stored in firmware predicts a voltage floor that the new cell hits sooner under full CPU and display load, so the system cuts out before the displayed percentage reaches zero. It is not a faulty cell — it is a calibration gap. Run two full discharge-to-hibernate cycles with the display at full brightness and a CPU load active, then charge to 100% each time. After those cycles, the fuel gauge re-anchors to the new cell's real discharge curve and the early shutdown stops. If it persists after three cycles, check that the EC firmware is on the latest Dell BIOS version, as older G3 BIOS builds have a known fuel gauge miscalculation fixed at 15.2V cell voltage.

Compatible Models

DNCWSCB6106B G3 15 G3 15 3579 G3 17 3779 G3-3579(i5-8300H) G5 15 5587 G5 5587-D1545B G5 5587-D1745B G5 5587-D1745R G5 5587-D1765B G5 5587-D1765R G5 5587-D1865B G5 5587-D2545B G5 5587-D2545R G5 5587-D2565B G5 5587-D2565R G5 5587-D2645B G5 5587-D2645R G5 5587-D2745B G5 5587-D2745R G5 5587-D2765B G5 5587-D2765R G7 7588 G7 7588-D1545B G7 7588-D1545W G7 7588-D1565B G7 7588-D1565W G7 7588-D1745B G7 7588-D1745W G7 7588-D1765B G7 7588-D1765W G7 7588-D1865W G7 7588-D1965W G7 7588-D2545B G7 7588-D2545W G7 7588-D2565B G7 7588-D2565W G7 7588-D2745B G7 7588-D2745W G7 7588-D2765B G7 7588-D2765W G7 7588-D2865B G7 7588-D2865W G7 7588-D2965W G7 7588-D2965W0 G7 7588-D4745W G7 7588-D4765W I7778-0026GRY Ins 15-5580-D2525L Ins 15-7577-D1645B Ins 15-7577-D1665B Ins 15-7577-D1745B Ins 15-7577-D1745R Ins 15-7577-D1765B Ins 15-7577-D1865B Ins 15-7577-D2765B Ins 15GD-1765L INS 15PD-1745W INS 15PD-1762BL Ins 15PD-1762W Ins 15PD-1763W Ins 15PD-1765BL INS 15PD-1845BL INS 15PD-1863BL INS 15PD-1863W INS 15PD-1865W Ins 15PD-1868BR Ins 15PD-7545BR Ins 15PD-7565BR Ins 15PD-7645BR Ins 15PD-7745BR Ins 15PD-7749BR Ins 15PD-7765BR Ins 15PD-8545BR Ins 15PD-8645BR Ins 15PD-8745BR Ins 15PD-8765BR Ins 15PD-9645BR Ins 15PD-9745BR Ins 15PD-9765BR Ins 15PR-6545B Ins 15PR-6745B Ins 17PD-1745B Ins 17PD-1765B Ins 17PD-1865B Ins 17PD-2765B Ins 17PD-2865B Ins G3 3579-D2645BL Ins G3 3579-R1545BL Ins G3 3579-R1745BL Inspiron 15 7577 Inspiron 15 7588 Inspiron 15-7577 Inspiron 17 7000 Inspiron 17 7773 Inspiron 17 7778 Inspiron 17 7778 2-IN-1 Inspiron 17 7779 Inspiron 17 7779 2-IN-1 Inspiron 17 7786 2-in-1 Inspiron 17-7778 Inspiron 17-7779 Inspiron 17-7786 inspiron 17(7778) Inspiron 7577 Inspiron 7778 Inspiron 7779 Inspiron G5 15-5587 Inspiron G7 7588 Latitude 14 3400 Latitude 15 3580 Latitude 15 3590 Latitude 3400 Latitude 3490 Latitude 3500 N005L3490-D1316CN N006L3400-D1316CN N010L3490-D1566CN N010L3500-D1316CN N015L3400-D1536CN N016L3490-D1526CN N021L3400-D1556CN N025L3490-D1766FCN N026L3400-D1756CN N031L3500-D1586CN N032L3490-D1556CN N032L3500-D1756CN N038L3490-D1516CN N041L3490-D1756CN N064L3490-D1586CN Vostro 15 7570 Vostro 15 7580 VOSTRO 15-7570-D1545S VOSTRO 15-7570-D1645S VOSTRO 15-7570-D1745S VOSTRO 15-7570-D2645S VOSTRO 15-7570-D2665S VOSTRO 15-7570-D2765S VOSTRO 15-7580-D1545S VOSTRO 15-7580-D1645S VOSTRO 15-7580-D1665S VOSTRO 15-7580-D1745S VOSTRO 15-7580-D2765S VOSTRO 15-7580-D3745S VOSTRO 15-7580-D3765S

Replaces Part Numbers

07FHHV 7FHHV 33YDH P30E P30E001 P72F P72F001 P72F002 PVHT1 W7NKD

Technical Specifications

Voltage15.2V
Amp Hours3400mAh
Capacity3400mAh
Rate51.68Wh
Net Weight240g /8.47 oz
Gross Weight380g /13.40 oz
Approximate Weight380g /13.40 oz
Dimension 242.10 x 104.20 x 5.60mm

Product Highlights

  • Brand: Dell
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

Dell SupportAssist shows the new battery as "Unknown" and won't clear — what's causing that?

The Dell EC reads identity data from the battery's EEPROM over SMBus during POST. If the EEPROM flags don't match what the EC expects for a 15.2V four-cell pack, it logs the cell as unrecognised rather than flagging a hardware fault. Do a full discharge to hibernate-cutoff, then a single uninterrupted charge to 100% — this triggers the BIOS battery learn cycle and rewrites the EC's baseline against the new cell. After one complete cycle, the "Unknown" status clears and SupportAssist reads the cell correctly.

The system info screen shows the wrong Wh rating after fitting this battery — is the cell incorrect?

No. The Wh figure displayed in Windows Device Manager or Dell system info pulls from a static value written in the battery's EEPROM at manufacture, which can differ slightly from the calculated figure based on actual cell chemistry. This replacement is rated at 51.68Wh, but the EC may display a slightly different number until the learn cycle runs. Run the battery through one full discharge-to-hibernate and back to 100%, and the reported Wh figure will align with the EEPROM value. The discrepancy does not affect charging behaviour or capacity.

Charge stops at 80% and won't go higher — is there a fault with the replacement cell?

On most G3 units this is the Dell BIOS charge-limit feature, not a battery fault. Dell ships several G3 BIOS versions with "Primary AC Use" or "Custom Charge" mode enabled by default, which caps charging at 80% to reduce cell stress during long periods on mains power. Open the Dell BIOS at startup, navigate to Power Management, and set the charge mode to "Adaptive" or "Standard." Once that setting is changed and the laptop reboots, charging will continue past 80% up to 100%.

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