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Daewoo 7550 Replacement Battery 10.8V 6600mAh DR202

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From $88.99 USD $109.99
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Fits Daewoo 7550 and 7750 notebooks; replaces DR202, EMC36, ME202BB, NL2020, SMP02 battery packs.
10.8V 6600mAh lithium-ion cell delivers 71.28Wh total; matches original capacity for full runtime restoration.
Connector sits flush in the battery slot with mechanical locking tab; no adapter needed for installation.
Bench testing showed clean BMS response on first charge cycle with voltage ramp-up to 12.6V cutoff.
After installation, discharge the laptop fully to hibernation, then charge uninterrupted to 100% to reset BIOS battery learn cycle and clear inaccurate health warnings.
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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

10.8V

Amp

6600mAh

Daewoo 7550 / 7750 — 10.8V Li-ion Replacement Battery (DR202)

This is a 10.8V, 6600mAh (71.28Wh) Li-ion replacement battery for the Daewoo 7550 and 7750 notebook computers. It replaces OEM part numbers DR202, EMC36, ME202BB, NL2020, and SMP02. If your original cell no longer holds a charge or fails to register in the OS, this cell restores portable power to the laptop.

  • 7550 and 7750 shared platform: Both models run the same 10.8V battery rail with an identical connector and BMS handshake protocol. One cell covers both — no hardware modification needed.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the 7550 platform. The BMS accepted charge from zero without triggering a reject flag, and the fuel gauge IC registered the cell correctly after two full cycles.
  • First-cycle recalibration on the 7550: After installing, run one full discharge to the hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on these Daewoo notebooks.

BIOS reporting poor battery health after installing a new cell

The Daewoo 7550 BIOS reads health data stored in the old cell's EEPROM. When a new cell installs, the BIOS compares its logged wear data against the fresh cell and flags a mismatch as poor health. This is a firmware calibration issue, not a fault with the replacement. Run one complete discharge to hibernate, then a full uninterrupted charge to 100% — the BIOS learn cycle re-anchors to the new cell's actual capacity after this sequence.

Laptop shuts down while the OS still shows 20–30% remaining

This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The IC is still using the old cell's discharge profile, so it misreads remaining capacity under full CPU and display load. At high draw, the cell voltage drops faster than the stale profile predicts, and the BMS cuts power before the displayed percentage reaches zero. Complete two to three full discharge-charge cycles and the gauge IC will track the actual voltage cliff — the shutdowns stop once it reads below 3.0V per cell correctly.

Compatible Models

7550 7750

Replaces Part Numbers

DR202 EMC36 ME202BB NL2020 SMP02

Technical Specifications

Voltage10.8V
Amp Hours6600mAh
Capacity6600mAh
Rate71.28Wh
Net Weight450g /15.87 oz
Gross Weight514g /18.13 oz
Approximate Weight514g /18.13 oz
Dimension 148.00 x 89.00 x 20.00mm

Product Highlights

  • Brand: Daewoo
  • 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

My Daewoo 7550 shows the new battery as "0%" or "unknown" immediately after installing — what's wrong?

The fuel gauge IC is reading EEPROM data from the old cell and hasn't mapped the new one yet. This isn't a fault with the replacement. Run one full discharge to the hibernate cutoff, then charge uninterrupted to 100%. After one complete learn cycle, the OS will register the correct percentage.

The OS Wh rating for my new battery shows a different number than what's printed on the cell — is the cell underspec?

The Wh figure shown in system info is pulled from the old cell's EEPROM record, not measured from the new cell in real time. The EEPROM value only updates after the BIOS completes a full battery learn cycle. This cell is rated at 71.28Wh — if the system still shows the wrong figure after two full discharge-charge cycles, check the BIOS battery settings for a stored capacity override.

My 7550 charges the new battery to exactly 80% then stops — it never reaches 100%.

Some BIOS versions on these Daewoo notebooks include a charge-limit setting that caps charging at 80% to reduce cell stress during long periods plugged in. Open the BIOS power settings and look for a "Battery Life" or "Charge Threshold" option — set the upper limit to 100% and save. If no such setting appears, check any pre-installed power management utility, as the cap is often set there rather than in the BIOS directly.

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