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Smart Tec GreenNote DR202 Replacement Battery 10.8V 6600mAh

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From $88.99 USD $109.99
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Fits Smart Tec GreenNote laptops using OEM part numbers DR202, EMC36, ME202BB, NL2020, or SMP02.
10.8V, 6600mAh cell delivers 71.28Wh — matches the original power envelope for full-load CPU and display operation without early shutdown.
Connector is a three-pin housing with side-locking tab; slides into the battery compartment with the latch facing outward and seats flush against the retention spring.
We bench-tested the BMS against a GreenNote charger circuit — cell accepted charge linearly through the voltage curve with no early cutoff or thermal throttle.
After installation, discharge fully to hibernation cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings that appear 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

10.8V

Amp

6600mAh

Smart Tec GreenNote — 10.8V Li-ion Replacement Battery (DR202)

This is a 10.8V, 6600mAh (71.28Wh) Li-ion battery for the Smart Tec GreenNote notebook computer. It replaces OEM part numbers DR202, EMC36, ME202BB, NL2020, and SMP02. If the original cell has degraded, failed to hold a charge, or the BIOS is flagging poor battery health, this is the direct replacement.

  • GreenNote platform compatibility: These five OEM part numbers all share the same 10.8V rail, connector pinout, and BMS handshake protocol on the GreenNote. Swapping between them does not require firmware changes or BIOS updates.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a GreenNote unit. The BMS reported accurate state-of-charge readings and the protection circuit tripped correctly at low-voltage cutoff without shutting down early under CPU and display load.
  • First-cycle calibration on the GreenNote: After fitting this battery, 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 the GreenNote routinely throws after any cell swap.

BIOS reporting battery health as poor after fitting this cell

The GreenNote's BIOS reads health data from EEPROM stored on the battery controller, not from live cell measurements. When a new cell arrives, the EEPROM values don't match the old cycle count and wear data the BIOS expects. This triggers a false "poor health" or "replace battery" warning even on a brand-new cell. One complete discharge-to-hibernate followed by an uninterrupted full charge resets the learn cycle and clears the flag.

GreenNote shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve. The OS reads a state-of-charge estimate built for the old, degraded cell and calls shutdown too early. The new cell still has usable capacity at the voltage point where the laptop cuts out. Run two to three full discharge-to-hibernate and charge-to-100% cycles — by the third cycle the fuel gauge IC recalibrates and the displayed percentage aligns with real remaining capacity.

Compatible Models

GreenNote

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: Smart Tec
  • 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 GreenNote BIOS is showing "unknown battery" and 0% after I fitted the new cell — what's happening?

The BIOS pulls identity data from the EEPROM chip on the battery controller. A new cell ships with EEPROM values that don't match the old battery's stored profile, so the BIOS throws an unknown or 0% reading on first boot. Power the laptop off completely, reseat the battery, then boot and run one full discharge to hibernate-cutoff followed by an uninterrupted charge to 100%. That forces the BIOS learn cycle to register the new cell and clears the unknown status.

The GreenNote's battery meter is jumping around wildly — showing 60%, then 45%, then 70% within minutes. Is the cell faulty?

The fuel gauge IC calibrates its state-of-charge estimate against the voltage curve of the previous cell. On a new cell with a different capacity curve, those estimates are inaccurate for the first few cycles and the readings swing unpredictably. The cell itself is not faulty. Run two to three complete discharge-to-hibernate and charge-to-100% cycles and the fuel gauge IC will recalibrate against the actual chemistry of the new cell — readings stabilise by the third cycle.

System info on the GreenNote is showing the wrong Wh rating for this battery — it's displaying a different number than 71.28Wh. Should I be worried?

The Wh figure the OS displays is read from the EEPROM rated value stored on the battery controller, which may reflect the original OEM cell's nominal rating rather than the replacement cell's actual chemistry. This is a data mismatch between EEPROM and the physical cell — it does not affect how the battery charges or discharges. After completing the BIOS battery learn cycle, some GreenNote units update the displayed Wh figure; others retain the EEPROM value permanently. Either way, confirm charging voltage reaches 12.6V at the battery connector to verify the cell is performing correctly.

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