About this replacement
HP Chromebook 11 G5 — 7.7V Li-Polymer Replacement Battery (DR02XL)
This is a 7.7V, 5600mAh (43.12Wh) Li-Polymer replacement battery for the HP Chromebook 11 G5 and Chromebook 11-V series. It fits models including the Chromebook 11-V011DX and Chromebook 11 G5 (P0B78UT), among others. OEM part numbers include DR02XL, HSTNN-IB7M, HSTNN-LB7M, and TPN-W123.
- Chromebook 11 G5 and 11-V series fit: These models share the same 7.7V battery rail, physical connector, and BMS handshake protocol. The DR02XL part number covers the full G5 and 11-V lineup because HP used a single battery spec across both sub-variants without changing the EEPROM profile.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Chromebook 11 G5 unit. The BMS accepted the new cell without faults, reported capacity within expected range after two full cycles, and the charge circuit reached 100% without cutoff errors.
- Post-install calibration on Chrome OS: After fitting this battery, run it down to the automatic hibernate cutoff — do not force-shutdown — then charge uninterrupted to 100%. Chrome OS uses this cycle to reset the fuel gauge IC learn cycle against the new cell and clear the inaccurate health flag that appears after every cell swap.
Chrome OS reporting battery health as poor immediately after replacement
The Chromebook's embedded controller reads health data from EEPROM registers that still hold degraded values from the old cell. The new cell has no charge history, so the firmware compares its current state against a stored baseline that no longer applies. Chrome OS then flags health as poor or unknown — this is a firmware reporting artefact, not a cell fault. One full discharge-to-hibernate followed by an uninterrupted charge to 100% resets the learn cycle and clears the warning.
Chromebook shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The displayed percentage is based on the old cell's curve, so the system hits the low-voltage cutoff — typically around 6.0V under CPU and display load — while the gauge still reads 20–30%. It is not a cell defect. Run two full discharge-to-hibernate and full-charge cycles without interruption; by the third cycle the gauge IC maps the new curve accurately and shutdowns at false percentages stop.