HP Pavilion ZT3326AP Replacement Battery 14.8V 4400mAh
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HP Pavilion ZT3326AP Replacement Battery 14.8V 4400mAh - 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 ZT3326AP Replacement Battery 14.8V 4400mAh - is backordered and will ship as soon as it is back in stock.
Voltage
14.8V
Amp
4400mAh
HP Pavilion ZT3300 Series — 14.8V Li-ion Replacement Battery (337607-001)
This is a 14.8V, 4400mAh (65.12Wh) Li-ion battery for the HP Pavilion ZT3300 series notebook. It fits the ZT3326AP, ZT3355US, ZT3019AP, ZT3300, and 248 additional models sharing the same connector and voltage rail. OEM part numbers covered include 337607-001, 337607-003, DG103A, and DL615A.
- ZT3300 series compatibility: These Pavilion models share a 14.8V four-cell Li-ion architecture with the same connector pinout and BMS handshake protocol. The BIOS identifies the cell pack by EEPROM data, so the replacement pack must match voltage and chemistry exactly — this one does.
- Bench tested on actual hardware: We cycled this pack through charge and discharge on ZT3300 series hardware. The BMS held steady across the full voltage window — no premature cutoff, no overcurrent trip during full CPU and display load.
- Post-install recalibration on ZT3300: After fitting this battery, run one full discharge until the laptop hibernates at cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap.
BIOS reporting poor battery health after replacing the ZT3300 cell
The HP Pavilion ZT3300 BIOS reads health data from the battery's EEPROM — specifically the charge cycle count and design capacity stored on the old cell. A new pack arrives with zeroed or default EEPROM values that don't match what the BIOS expects. This triggers a "Battery health is poor" or similar warning even when the cell is brand new. One complete discharge-to-hibernate followed by a full uninterrupted charge gives the BIOS enough data to re-evaluate the pack correctly.
Laptop shuts down at 20–30% charge shown on the ZT3300
This happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve. The IC is still mapping capacity percentages against the old cell's degraded discharge profile, so it miscalculates where the voltage cliff sits. Under full CPU plus display load, actual cell voltage drops faster than the gauge predicts — the laptop hits the hardware cutoff before the displayed percentage reaches zero. Two to three full calibration cycles bring the fuel gauge IC into sync; shutdowns at false percentages stop once the IC has learned the new cell's curve down to the 3.0V per-cell cutoff.
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
The HP Pavilion ZT3300 BIOS shows "0% available (plugged in, charging)" after I fitted the new battery — what's wrong?
The BIOS hasn't yet learned the new cell's EEPROM data and is reporting the fuel gauge IC as unresponsive. This is common on ZT3300 hardware after a cell swap. Discharge the laptop fully until it hibernates, then charge without interruption to 100%. After one complete cycle the BIOS resets its battery learn state and the percentage reads correctly.
My ZT3300 shows 65Wh in Device Manager but the battery health reads as poor — is the cell actually faulty?
No — the Wh figure comes from the EEPROM on the replacement pack and is correct at 65.12Wh. The "poor health" flag is a separate BIOS value calculated from cycle history, which resets independently. We see this split reading on every fresh ZT3300 cell swap on the bench. Run the discharge-to-hibernate then full-charge cycle once and the health flag clears; the Wh rating stays accurate throughout.
The charge stops at around 80% on the ZT3300 and won't go higher — is the replacement cell at fault?
Not typically. HP's BIOS on this series includes a charge-limit threshold that activates when it detects what it reads as a degraded pack — even a new cell can trigger it if the learn cycle hasn't run yet. Discharge fully to hibernate cutoff, then charge uninterrupted. If the 80% cap persists after two full cycles, check the HP Battery Check utility; a stuck threshold there points to a BIOS firmware setting rather than a cell fault, and a BIOS update to the latest ZT3300 revision resolves it.
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