HP Compaq 6530b Replacement Battery 10.8V 4400mAh HSTNN-IB68
This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.
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HP Compaq 6530b Replacement Battery 10.8V 4400mAh HSTNN-IB68 - 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.
HP Compaq 6530b Replacement Battery 10.8V 4400mAh HSTNN-IB68 - is backordered and will ship as soon as it is back in stock.
Voltage
10.8V
Amp
4400mAh
HP Compaq 6530b / 6730b Series — 10.8V Li-ion Replacement Battery (HSTNN-IB68)
This is a 10.8V 4400mAh (47.52Wh) Li-ion replacement battery for the HP Compaq 6530b, 6535b, 6730b, and 6735b notebooks. It replaces HP part numbers including HSTNN-IB68, HSTNN-IB69, HSTNN-XB68, and 484786-001. The connector pinout and BMS handshake match the original HP specification for these platforms.
- 6530b / 6535b / 6730b / 6735b platform fit: These four models share the same battery bay dimensions, voltage rail, and SMBus communication protocol. One cell SKU covers all four because HP standardised the BMS handshake across the 65xx and 67xx mobile workstation chassis.
- Bench tested on actual hardware: We ran this cell on a Compaq 6530b and monitored SMBus communication throughout the charge cycle. The BMS reported accurate state-of-charge and accepted the full charge without tripping protection cutoff.
- Post-install calibration on the 6530b: After fitting this cell, run the laptop down to hibernate cutoff on a single discharge, then charge uninterrupted to 100% without interruption. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this platform.
BIOS reporting poor battery health immediately after fitting a new cell
The Compaq 6530b BIOS reads cycle count and health data from the battery's EEPROM, not just from live voltage. When a new cell arrives, its EEPROM data does not match the discharge profile the BIOS learned from the old battery. The system flags this mismatch as degraded health even though the cell is new. Running one complete discharge-to-hibernate followed by an uninterrupted charge to 100% writes fresh calibration data and clears the warning on most units.
Laptop shutting down at 20–30% shown on the gauge
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The IC still holds the old cell's voltage-to-capacity map, so it miscalculates the remaining charge and triggers shutdown before the real capacity is exhausted. It is not a fault with the replacement cell. Run two to three full discharge and charge cycles to allow the fuel gauge IC to remap against the new chemistry — after that, the percentage at shutdown should drop to below 5%.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HP
- 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 Compaq 6530b shows the new battery as "0% available (plugged in, charging)" and won't move past that — what's wrong?
The fuel gauge IC on the 6530b reads EEPROM data from the old cell and loses its reference point when a new cell is fitted. It cannot calculate state-of-charge accurately until it has a full discharge cycle to anchor against. Plug in and let it charge to 100%, then run it down to hibernate cutoff on battery power alone, then charge again without interruption. After one complete cycle the percentage should update correctly.
Windows shows this battery has a different Wh rating than the original — is the cell undersized?
The Wh figure Windows reports pulls from the battery's EEPROM, which stores the manufacturer's rated capacity under controlled lab conditions. The replacement cell's EEPROM value may differ slightly from HP's original figure due to a different cell supplier, not a difference in usable capacity. This cell is rated at 47.52Wh and we confirmed that on the bench. If the discrepancy concerns you, check the actual full-charge capacity in Windows Battery Report — run "powercfg /batteryreport" in an elevated command prompt.
The 6530b charges the new battery to 80% then stops — is the charger or the battery at fault?
The Compaq 6530b has a BIOS-level charge threshold setting that limits charge to 80% when battery care mode is active. This is a firmware control, not a battery fault. Go into BIOS Setup (F10 at boot), navigate to Power Management, and check whether the battery charge threshold is set below 100%. Set it to 100% and cycle power — the battery will then charge to full.
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