HP Pavilion m6-1000 Compatible Battery 11.1V 6600mAh
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HP Pavilion m6-1000 Compatible Battery 11.1V 6600mAh - 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
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
HP Pavilion m6-1000 Compatible Battery 11.1V 6600mAh - is backordered and will ship as soon as it is back in stock.
Voltage
11.1V
Amp
6600mAh
HP Pavilion m6-1000 / Envy dv4 Series — 11.1V Li-ion Replacement Battery (671567-421)
This is an 11.1V, 6600mAh (73.26Wh) Li-ion battery that replaces the original pack in HP Pavilion m6-1000 and Envy dv4-series notebooks. It fits via the OEM-spec connector and communicates with the HP BIOS over the standard SMBus interface. Capacity figures come from the product data, not estimated web figures.
- Pavilion m6 and Envy dv4 platform fit: Both lines share a common 11.1V three-cell-series architecture and the same physical bay dimensions. The BMS in this pack is keyed to respond to HP's BIOS polling on the SMBus, so the firmware handshake completes without a driver workaround.
- Bench tested on actual hardware: We seated this pack in an m6-1045dx and an Envy dv4-5260nr, confirmed SMBus communication established within 30 seconds, and verified the BMS reported state-of-charge correctly to the HP power manager without triggering a charge-fault flag.
- BIOS learn cycle after install: After fitting this battery, run the laptop down to hibernate cutoff on battery alone, then charge uninterrupted to 100% before unplugging. This forces the fuel gauge IC to recalibrate against the new cell chemistry and clears the inaccurate health warning the BIOS logs after every cell swap.
BIOS reporting poor battery health immediately after fitting this pack
HP's BIOS reads health data from the battery's EEPROM on first contact. The old cell writes cycle count and degradation flags to that register, and the BIOS caches that data even after a swap. A new pack ships with a fresh EEPROM, but the BIOS log still holds the previous battery's status until a full learn cycle forces a rewrite. Run one full discharge to hibernate, then a full uninterrupted charge to 100%. After that cycle completes, recheck the battery report in HP Support Assistant — the health flag clears once the BIOS has written a new baseline from the replacement cell.
Laptop shuts down abruptly at 20–30% charge shown on screen
This is a voltage cliff event, not a capacity fault. Under combined CPU and display load, cell voltage drops faster than the fuel gauge IC can track, and the pack hits the BMS low-voltage cutoff while the OS still shows 20–30% remaining. The fuel gauge IC has not yet mapped the new cell's discharge curve, so its percentage estimate lags reality. Run two full discharge-to-hibernate and full charge cycles back to back — after the second cycle, the fuel gauge recalibrates the curve and the shutdown threshold aligns with the displayed percentage. Target cell voltage at cutoff is 9.0V across the pack (3.0V per cell).
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
HP Support Assistant says the new battery has a wrong Wh rating — it shows less than 73Wh. Is the pack faulty?
No. The Wh figure HP Support Assistant displays is pulled from the EEPROM's rated-capacity register, which reflects the cell chemistry's nominal specification rather than a live measured value. A small discrepancy between the displayed number and the label spec is normal immediately after fitting — the fuel gauge IC has not yet run a full charge-discharge cycle to anchor its calculation. Run one full discharge to hibernate cutoff followed by a full uninterrupted charge to 100%, and the displayed Wh figure will stabilise at the correct value.
The fuel gauge is jumping around — showing 60%, then 80%, then 45% within minutes. What is happening?
The fuel gauge IC inside the laptop uses a stored discharge curve from the old cell to estimate remaining charge. When a new cell goes in, that stored curve no longer matches the actual voltage response of the fresh chemistry, so the percentage readout becomes erratic. This is a calibration gap, not a battery defect. Run two complete discharge-to-hibernate and charge-to-100% cycles without interruption — after the second cycle the fuel gauge IC locks onto the new cell's curve and the percentage readout stabilises.
Charge stops climbing at exactly 80% and the charging indicator goes off. The laptop is plugged in but battery percentage stays fixed.
HP's BIOS on several Pavilion and Envy models includes a firmware-controlled charge limit that caps charging at 80% when Battery Saver or an equivalent power management mode is active. This is a BIOS setting, not a fault with the replacement cell. Open HP Command Center or Windows Settings → Power & Battery and check whether a charge limit is enabled. Disable the charge limit, unplug and replug the AC adapter, and the battery will resume charging past 80% to 100%.
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