About this replacement
iRay Mars1417V Series — 11.1V Li-ion Replacement Battery (BATTERY-KV)
This 11.1V 4150mAh (46.07Wh) Li-ion battery fits the iRay Mars1417V thermal imaging camera and its variants, including the Mars1417V Flat Panel Detector and Mars1417V-TSI. It is a direct cell replacement for clinical thermography workflows where the primary battery depletes during extended imaging sessions. All models in the Mars1417V line share the same voltage rail and connector, so one battery covers the full platform.
- Mars1417V platform compatibility: The Mars1417V, Mars1417V Flat Panel Detector, Mars1417V-TSI, and Mars1717V all draw from the same 11.1V architecture with a shared BMS handshake protocol. Swapping cells across these variants does not require firmware changes or connector adapters.
- Bench tested on actual hardware: We cycled this cell through the Mars1417V boot sequence and monitored BMS communication at startup. The pack passed the device's internal cell-verification routine without triggering a fault flag, and charge acceptance across the first three cycles was consistent with OEM cell behaviour.
- Post-swap power-on self-test: After installing this battery, allow the Mars1417V to complete its full power-on self-test without interruption. Medical imaging devices run a BMS verification pass at startup — cutting power mid-sequence registers a false battery fault that persists until the next clean reboot.
Mars1417V not completing boot sequence on a new battery
The Mars1417V runs a staged boot that includes a BMS handshake before the imaging subsystem initialises. A new cell that has not completed its first full charge-discharge cycle may report a state-of-charge value the device's charge IC treats as out-of-range, stalling the boot at the self-test screen. This is a calibration gap between the new cell's default SoC register and the device's OEM threshold — not a fault with the battery itself. Run one complete charge cycle to 100% before placing the unit into clinical rotation.
Charge indicator stuck below 100% on the first charge
On the first charge, the Mars1417V's charge IC applies a conservative current ceiling to an uncharacterised cell, which extends the absorption phase and can leave the indicator sitting at 95–98% for longer than expected. This is the charge controller protecting the cell — not a faulty battery or a faulty charger. Do not disconnect and reconnect the charger repeatedly; that resets the absorption timer and extends the total charge time further. Leave the device on charge until the indicator clears to 100% naturally, then run one full discharge before the next charge.