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Haier S530 Notebook Replacement Battery 10.8V 4400mAh

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From $81.99 USD $100.99
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Fits Haier S530, S510, S520 notebooks; replaces OEM battery CS-MD4211HB.
10.8V, 4400mAh lithium-ion delivers 47.52Wh to restore full portable runtime on this ultrabook class.
Connector slides into slot with single locking tab; verify orientation before seating fully.
Bench test showed stable 10.8V hold under sustained CPU load; BMS engaged protection cutoff at threshold.
After installation, discharge fully to hibernate shutdown then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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

4400mAh

Haier S530 Series — 10.8V Li-ion Replacement Battery

This is a 10.8V, 4400mAh (47.52Wh) Li-ion replacement battery for the Haier S530, S500-I54200G40T01NDTS, S510, S520-N2940G40500RDTW, and related models. It slots into the battery bay and reconnects the laptop to portable power when the original cell has degraded or stopped holding a charge. Voltage and capacity match the stock specification exactly.

  • S530 series compatibility: The S530, S510, S520, and S500 variants share the same 10.8V three-cell battery platform, connector pinout, and BMS communication protocol — which is why a single replacement cell covers the full range.
  • Bench tested on actual hardware: We ran charge and discharge cycles on the S530 platform. The BMS handshake completed correctly, the fuel gauge IC accepted the new cell data, and the pack charged to full capacity without triggering a protection cutoff.
  • First-cycle calibration on the S530: After fitting this cell, run one full discharge until the laptop hibernates, 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 Haier notebooks.

BIOS reporting poor battery health immediately after fitting the new cell

The Haier S530 BIOS reads health data stored in the battery pack's EEPROM and compares it against an internal baseline built from the old cell's charge history. A brand-new cell has no matching history, so the BIOS flags it as degraded on first boot. This is not a fault with the replacement pack. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100% — the BIOS resets its learn cycle and the health warning clears within one to two cycles.

Laptop shuts down abruptly when the gauge still shows 20–30% remaining

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The IC inherited the old cell's voltage-to-capacity mapping, so it misreads the point at which cell voltage collapses under combined CPU and display load. The pack still has usable charge — the gauge is simply wrong. Complete two to three full discharge and charge cycles to let the fuel gauge IC re-map the curve against the new chemistry, and the early shutdowns will stop.

Compatible Models

S530 S500-I54200G40T01NDTS S510 S520-N2940G40500RDTW S520 S510-I53230G40500RDGS S500

Technical Specifications

Voltage10.8V
Amp Hours4400mAh
Capacity4400mAh
Rate47.52Wh
Net Weight293g /10.34 oz
Gross Weight563g /19.86 oz
Approximate Weight563g /19.86 oz
Dimension 269.62 x 47.52 x 23.50mm

Product Highlights

  • Brand: Haier
  • 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 S530 BIOS shows the battery Wh rating as lower than the 47.52Wh on the spec sheet — is the cell underrated?

The Wh figure displayed in the BIOS comes from a value stored in the pack's EEPROM, not a live measurement of the cell. On a new replacement, that stored value may not match the actual chemistry until the fuel gauge IC runs calibration cycles. Complete two full discharge-to-hibernate and charge-to-100% cycles — the reported Wh figure will align with the rated 47.52Wh once the IC has real discharge data to work from.

The new battery charged to 80% and then stopped — the charging indicator light went off as if it was full. What is causing that?

Some Haier notebook BIOS versions include a charge-limit setting that caps charging at 80% to reduce cell stress during AC-connected use. Check the BIOS power management menu under the battery or charging section — there will be a charge threshold toggle or slider. Set it to 100% and save the change. The laptop will then charge the pack to its full 4400mAh capacity on the next charge cycle.

After fitting this cell, the Windows battery gauge jumps erratically — it reads 60%, then 45%, then 70% within a few minutes without any load change. Is the cell faulty?

The erratic readings come from the fuel gauge IC recalculating against an unfamiliar discharge curve after the cell swap. The IC has no accurate reference data for the new cell yet, so voltage-to-capacity conversions produce unstable output. This is normal for the first two to three cycles. Run the pack down to hibernate cutoff twice in a row, charging fully between each cycle, and the gauge IC will lock onto a stable curve — the jumping stops by the third cycle.

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