Dali T3 Thermal Camera Compatible Battery 7.4V 2200mAh

Dali T3 / T8 — 7.4V Li-ion Replacement Battery (SNLB-1061B)

This is a 7.4V, 2200mAh Li-ion replacement battery for the Dali T3 and T8 thermal imaging cameras. It fits both handheld models used in building diagnostics, electrical panel inspections, and preventive maintenance work. Capacity figure is sourced from the product data, not estimated.

• T3 and T8 platform fit: Both models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The SNLB-1061B and HYLB-1061B part numbers are interchangeable across this platform — same cell configuration, same communication line.
• Bench tested on actual hardware: We ran this battery through a full charge cycle and monitored the BMS under combined display and detector heating load. The protection circuit held stable across the draw spike at power-on and did not trip during sustained imaging sessions.
• Post-storage first-use tip: If the battery has been stored for more than three months, charge it fully before field deployment. The Dali T3 and T8 thermal detectors draw constant current to maintain sensor temperature — a partially depleted cell coming out of storage will hit the BMS undervoltage threshold faster than the battery indicator suggests.

Dali T3 shutting down mid-inspection on a new battery

The T3's thermal detector runs a continuous heating element to keep the uncooled microbolometer at operating temperature. This draws constant current on top of the display backlight load. On a cold start, both loads spike simultaneously, and a battery with even minor cell imbalance can trigger the BMS overcurrent cutoff before the indicator drops below 50%. If the camera restarts immediately after shutdown, the issue is BMS protection tripping — not a faulty battery. Let the camera cool for 30 seconds, then power back on at room temperature to confirm.

Thermal accuracy dropping before the battery indicator reads low

The microbolometer in the T3 and T8 is voltage-sensitive. As cell voltage sags under load — even while the display still reads three bars — the detector's reference voltage drifts, and temperature readings can shift by 2–5°C before any low-battery warning appears. This is not a camera fault. It is normal behaviour when the battery is running below 7.0V under load. If measurements start showing unexpected variance during an inspection, check the battery voltage directly via the camera's diagnostics menu and replace the cell if it reads below 7.0V under active use.