Atom 7.2V Remote Control Replacement Battery 2100mAh Ni-MH

Atom HD Television / Satellite Analyser — 7.2V Ni-MH 2100mAh Replacement Battery

This is a 7.2V, 2100mAh Ni-MH rechargeable battery for the Atom HD Television and Satellite Analyser. It replaces the original pack when the unit loses charge capacity or stops holding power through a measurement session. Capacity is rated at 15.12Wh — use the figure from the product data, not the original label, for comparison.

• HD Television and Satellite Analyser fit: Both devices share the same 7.2V cell configuration, connector pinout, and BMS communication protocol — that is why one pack covers both. Swapping between platforms does not require a firmware change or battery reset on either unit.
• Bench tested on actual hardware: We ran the pack through probe and signal-lock initialisation sequences on the Satellite Analyser. The BMS held the output rail steady through the current spike at probe power-up and did not trip cutoff during a sustained signal-scan cycle.
• First-use calibration on the Atom analyser: After fitting this pack, run a full calibration cycle through the instrument menu before going to site. The Atom maps battery state during calibration — skipping this step causes the low-battery warning to fire early on the first active measurement session.

BMS lockout after the Atom Satellite Analyser sat unused in a carry case for months

Ni-MH packs self-discharge continuously, even in storage. After several months in a carry case, the cell voltage can drop below the BMS recovery threshold — typically around 6.0V for a 7.2V pack — and the protection circuit locks out charging entirely. The instrument may power on briefly from residual charge and then shut off before the charger negotiates a connection. A slow pre-charge at low current, held for 15–20 minutes, is usually enough to bring the cells back above the recovery threshold and allow normal charging to resume.

Readings drifting or session data resetting mid-logging on the Satellite Analyser

When the Atom Satellite Analyser holds an active signal lock and logs data simultaneously, the sustained sensor and memory-write load pulls more current than idle operation. An aged or partially discharged Ni-MH pack can sag below the instrument's minimum operating voltage under that combined draw — not enough to shut the unit off cleanly, but enough to cause the processor to reset and wipe the active logging buffer. This is not a software fault. Check cell voltage under load with a multimeter — if it drops below 6.5V during a scan cycle, the pack needs replacing. Fitting a fresh 2100mAh cell and recalibrating through the instrument menu resolves the sag.