HP ProBook 4410s Compatible Battery 10.8V 6600mAh HSTNN-DB90

HP ProBook 4410s / 4411s / 4415s / 4416s — 10.8V Li-ion Replacement Battery (513128-251)

This is a 10.8V Li-ion battery rated at 6600mAh (71.28Wh), built to replace the original power cell in HP ProBook 4410s, 4411s, 4415s, and 4416s notebooks. It cross-references OEM part numbers 513128-251, 513128-361, 535806-001, HSTNN-DB90, HSTNN-XB90, and NZ374AA. It restores unplugged operation on any of these ProBook variants when the original cell has degraded past usable capacity.

• ProBook 4410s–4416s platform fit: These four models share the same 10.8V battery rail, physical connector, and BMS handshake protocol. The EEPROM data embedded in the cell communicates directly with HP's battery controller — a mismatch here triggers false health warnings at the BIOS level before the cell has even cycled once.
• Bench tested on actual hardware: We cycled this battery through charge and full-load discharge on a ProBook 4410s. The BMS held the charge curve correctly, thermal cutoff did not trip under sustained CPU and display load, and the cell reached rated capacity within two full cycles.
• First-cycle reset on ProBook notebooks: After installing, run the laptop down to hibernate-cutoff under normal use, then charge uninterrupted to 100%. This forces HP's BIOS battery learn cycle to reset against the new cell's actual capacity and clears the inaccurate health warning that almost always appears after a cell swap on this platform.

BIOS reporting poor battery health immediately after replacement

HP's BIOS reads health state from EEPROM data stored in the battery controller, not from live voltage measurements. When a new cell is installed, that EEPROM data does not match the charge history the BIOS expects, so it flags the battery as degraded or unknown before a single discharge has occurred. Running one complete discharge-to-hibernate followed by an uninterrupted charge to 100% triggers the learn cycle and rewrites the health data. After two full cycles, the BIOS health indicator on ProBook 4410s-series machines typically resolves to normal.

Laptop shuts down at 20–30% charge shown on new battery

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The OS is reading a percentage derived from the old cell's profile, so the displayed value diverges sharply from real remaining capacity under full CPU and display load. The cell voltage drops below the BMS cutoff threshold — typically around 9.0V under load on a 10.8V Li-ion pack — before the OS gauge reaches zero. Run two full discharge-to-hibernate and charge-to-100% cycles without interruption, and the fuel gauge IC recalibrates its curve against the new cell.