ATOMOS Ninja 10-bit DTE Replacement Battery 7.4V 2000mAh

ATOMOS Ninja 10-bit DTE Field Recorder — 7.4V Li-ion Replacement Battery

This is a 7.4V 2000mAh (14.8Wh) lithium-ion battery for the ATOMOS Ninja 10-bit DTE field recorder. It fits the recorder's battery bay directly and delivers the same voltage rail as the original cell. Use it on location when you need a second or third battery to cover long shooting days.

• Ninja DTE compatibility: The Ninja 10-bit DTE runs on a 7.4V nominal rail with a standard NP-style footprint. This cell matches that voltage rail and connector geometry. The BMS inside the recorder negotiates charge state at power-on — no proprietary handshake blocks this cell.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the bench. The BMS accepted the cell on first insert, reported charge state correctly after one full charge cycle, and held voltage above the recorder's low-battery threshold across the full discharge curve.
• First charge cycle on the Ninja DTE: Insert the cell and run a full charge via the ATOMOS charger or dock before your first shoot. The Ninja DTE's battery-remaining indicator maps to specific voltage thresholds — a partial first charge causes the display to read inaccurately until the BMS has seen one complete cycle.

Why the Ninja DTE shows an incorrect battery percentage on a new cell

The Ninja DTE maps its battery indicator to a fixed voltage-threshold table calibrated against the original cell's discharge curve. A new replacement cell has a slightly different internal resistance profile, which shifts where the recorder reads each voltage step. Until the BMS logs a full charge-to-discharge cycle, the percentage display lags or jumps. Run one complete charge cycle before relying on the indicator on set.

Ninja DTE powering off unexpectedly before the indicator hits zero

This happens when the cell voltage drops below the recorder's cutoff threshold faster than the indicator predicts — common when a cell has been stored discharged for an extended period. Deep discharge pushes the resting voltage below 6.0V, and the BMS may cut output before the display reflects the real state of charge. Charge the cell immediately after receiving it if it arrives below 3.5V per cell (7.0V total). A slow charge cycle from near-empty usually recovers the cell and restores accurate cutoff behaviour.