Lenovo IdeaPad Y710 11.1V Replacement Battery 121TM030A
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Lenovo IdeaPad Y710 11.1V Replacement Battery 121TM030A - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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.
Disclaimer
Disclaimer
⚠️ 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.
Lenovo IdeaPad Y710 11.1V Replacement Battery 121TM030A - is backordered and will ship as soon as it is back in stock.
Voltage
11.1V
Amp
4400mAh
Lenovo IdeaPad Y710 / Y730 / Y530 Series — 11.1V Li-ion Replacement Battery (121TM030A)
This is an 11.1V, 4400mAh (48.84Wh) Li-ion replacement battery for the Lenovo IdeaPad Y710, Y730, Y530, Y530A, and related models. It matches the original cell's voltage rail, connector pinout, and BMS communication protocol. Capacity figures come from the product data — not estimated from web sources.
- IdeaPad Y-series platform fit: The Y710, Y730, Y530, and Y530A share the same 11.1V three-cell battery bay, connector, and BMS handshake. One cell replacement covers the full lineup because Lenovo kept the electrical spec consistent across this generation of multimedia notebooks.
- Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle and confirmed the BMS handshake completed correctly — the system recognised the battery, reported state-of-charge accurately, and did not throw an unknown device flag at POST.
- Post-install discharge cycle on the Y-series: After fitting, run the laptop on battery until it hibernates at low charge, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity and clears the inaccurate health warning that appears after every cell swap on this platform.
BIOS reporting battery health as poor immediately after replacement
The IdeaPad Y-series stores battery health data in EEPROM on the old cell. When a new cell installs, the BIOS reads stale EEPROM values and flags the battery as degraded — even though the cell is new. This is not a fault with the replacement. Run one complete discharge-to-hibernate cycle followed by a full uninterrupted charge. After one or two of these learn cycles, the BIOS recalibrates against the actual cell chemistry and the health warning clears.
Laptop shutting down at 20–30% charge shown on the IdeaPad Y710
This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The gauge loses track of the real state of charge as cell voltage drops steeply under combined CPU and display load — what the system reads as 25% is actually close to the cutoff floor. It is not a defective cell. Run two full discharge-to-hibernate cycles charging back to 100% each time. After calibration, the gauge tracks correctly and the laptop holds charge down to the reported low single digits before shutting off.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Lenovo
- 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
The IdeaPad Y710 shows the replacement battery as "unknown" or 0% in Windows right after install — what's causing that?
The fuel gauge IC on this platform needs to see at least one complete charge-discharge cycle before it can map the new cell's voltage curve. Until it does, Windows reports 0% or "unknown" because the EEPROM data from the old cell no longer matches the new chemistry. Run the laptop down to hibernate cutoff on battery, then charge uninterrupted to 100%. After that first full cycle the gauge initialises correctly and the percentage reads normally.
System info on the Y710 shows the battery's Wh rating as lower than the spec — is the cell undersized?
The Wh figure Windows displays is pulled from EEPROM data written when the original cell was manufactured. That stored value often differs from the actual rated capacity of the replacement cell because Lenovo's EEPROM records the factory-calibrated figure, not a live measurement. The cell itself is 48.84Wh as specced. To verify, let the battery complete two full learn cycles — the OS power report will converge closer to the actual figure once the fuel gauge IC has real discharge data to work from.
Why does the new battery stop charging at 80% on the IdeaPad Y530 and Y710?
This is a BIOS-controlled charge threshold, not a fault with the cell. Lenovo's power management firmware on this platform includes a conservation mode that caps charging at 80% to reduce heat and cell stress during long plugged-in sessions. Check Lenovo Vantage (or the older Energy Management utility on Y-series) — the "Battery Conservation Mode" toggle will be switched on. Disable it and plug in again; the battery charges to 100%.
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