Trotech SeeSnake CA-300 Replacement Battery 3.6V 5200mAh

Trotech SeeSnake Micro CA-300 / Explorer — 3.6V Li-ion Replacement Battery

This 3.6V 5200mAh Li-ion battery replaces the original power cell in the Trotech SeeSnake micro CA-300 and SeeSnake micro Explorer thermal imaging cameras. Both models share the same battery form factor, voltage rail, and connector orientation. Capacity is rated at 5200mAh (18.72Wh) as supplied.

• CA-300 and micro Explorer shared platform: Both cameras run on the same 3.6V single-cell Li-ion architecture with identical connector pinout and BMS handshake protocol — one battery covers both units without modification.
• Bench tested on actual hardware: We ran this cell through power-on cycles with the thermal detector and display active simultaneously. The BMS held stable output through combined detector-heating and display draw without triggering low-voltage cutoff prematurely.
• Post-storage power-on tip: If the camera has been stored with this battery installed for more than three months, power it on via USB power first to allow the BMS to re-initialise before relying on battery alone — this prevents a false low-voltage shutdown on first use.

Thermal camera shutting down mid-inspection on a new battery

The CA-300 draws current from two simultaneous loads — the thermal detector's heating element and the LCD display backlight. When ambient temperatures drop below 10°C, the detector heating element pulls more current to maintain calibration temperature, and the combined draw can spike above what a partially discharged or cold-soaked cell will sustain. The BMS interprets this surge as a low-voltage event and cuts output to protect the cell. Charge the battery to 100% before heading into cold environments, and allow the camera to warm in your pocket for five minutes before powering on.

Thermal image accuracy degrading before the battery indicator shows low

The SeeSnake micro CA-300's thermal detector is voltage-sensitive — accuracy begins to drift when cell voltage drops below approximately 3.2V, which can happen well before the on-screen battery indicator reaches the low warning threshold. The indicator reads percentage from a charge curve that doesn't account for detector load, so it lags behind actual cell voltage. If readings look soft or baseline temperature values shift unexpectedly, check the battery indicator and swap cells if it reads below 30%. Always begin inspections requiring measurement precision with a fully charged battery.