About this replacement
GoPro CHDHS-101 / Hero Session Series — 3.7V Li-Polymer Replacement Battery (601-06750-000)
This 3.7V, 800mAh lithium-polymer cell replaces the original battery in the GoPro CHDHS-101, CHDHS-501, Hero 4 Session, and Hero 5 Session. The cell matches the original's compact 31.50 × 24.50 × 9.60mm footprint and slots directly into the camera's internal battery bay. Voltage and capacity match factory spec.
- Session series compatibility: The CHDHS-101 through Hero 5 Session share the same internal battery bay geometry and 3.7V power rail. The BMS in each camera expects the same cell format and connector pinout, which is why one cell covers the full Session lineup.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Hero Session platform. The BMS accepted the cell without fault flags, held charge to the rated 800mAh, and showed no abnormal cutoff behaviour at the top or bottom voltage thresholds.
- First-install charge cycle on the Session: Insert the new cell and charge it fully inside the camera body using the OEM cable before shooting. The Hero Session's BMS maps its battery-remaining display against a charge curve established during that first in-body cycle — skipping it causes the indicator to read inaccurately from the first use.
Why the Hero Session shows a dead-battery icon on a new, partially charged cell
The Session BMS compares resting voltage against a stored discharge curve to estimate remaining charge. A new cell shipped at storage voltage — typically 3.6–3.7V — sits at a point the camera maps as critically low, not mid-charge. The camera isn't reading the cell as faulty; it's reading real voltage and placing it at the wrong point on a curve it hasn't yet calibrated. A full charge via the OEM cable before first use sets the reference point and the icon clears.
Battery percentage jumping or dropping suddenly during recording
This happens when the BMS is mapping a new cell's discharge curve against the old cell's stored voltage thresholds. The new cell may hold voltage higher for longer and then drop more steeply near depletion, causing the indicator to skip steps. Sustained 1080p or 4K recording adds a continuous processor and sensor load that accelerates the drop near the end of the discharge curve. Performing one full charge-to-discharge cycle inside the camera resets the threshold mapping and stabilises the readout — stop recording when the camera reaches 3.2V to avoid deep-discharge.