About this replacement
Sony CCD-TRV108 / CCD-TRV Series — 7.4V Li-ion Replacement Battery (NP-FM90)
This is a 7.4V, 4200mAh Li-ion battery pack for Sony CCD-TRV series camcorders, including the CCD-TRV108, CCD-TRV118, CCD-TRV128, and CCD-TRV138, among 62 additional compatible models. It replaces OEM part numbers NP-FM90, NP-FM91, NP-QM90, and NP-QM91. Cell capacity is rated at 31.08Wh and matches the original pack specification.
- CCD-TRV series compatibility: These camcorders share the same InfoLITHIUM battery rail and M-series connector, which is why a single pack covers all CCD-TRV models in this group. The BMS communicates remaining capacity back to the camera body over the same data pin used across the entire M-series platform.
- Bench tested on actual hardware: We cycled this pack through Sony's InfoLITHIUM charge protocol and confirmed the BMS handshake returned valid capacity data to the camera display. Charge acceptance was normal from zero through to full, with no cutoff events during the charge cycle.
- First charge on InfoLITHIUM bodies: Run the first full charge cycle through the camera body or Sony OEM charger — not a generic third-party charger. The InfoLITHIUM system calibrates its remaining-time display against the first charge cycle it records, and a generic charger may bypass the data handshake entirely.
Why the CCD-TRV108 rejects a new pack on first install
Sony's InfoLITHIUM system requires an initial authentication handshake before it accepts a new cell for display reporting. A freshly installed replacement may trigger a "no battery" or flashing indicator if the camera hasn't yet completed a charge cycle with that specific pack. This is a BMS initialisation check, not a fault with the battery. Insert the pack, connect the camera to the AC adaptor, and allow one full charge to complete — the camera will accept the pack and display capacity normally after that cycle.
Battery percentage jumping around on the CCD-TRV display
The InfoLITHIUM display maps remaining capacity against a voltage-discharge curve stored during the initial calibration cycle. A new cell has a slightly different discharge profile than a worn original, so the percentage counter can skip or stall at certain points until the system recalibrates. This is not a cell defect — it resolves after one or two full discharge and charge cycles. If the jumping persists past the second cycle, check the pack resting voltage with a meter: a healthy cell at full charge should read between 8.2V and 8.4V.