Luvion Grand Elite 2 Replacement Battery 3.7V 1150mAh

Luvion Grand Elite 2 — 3.7V Li-Polymer Replacement Battery

This 3.7V, 1150mAh lithium-polymer battery replaces the internal cell in the Luvion Grand Elite 2 parent unit. It fits the handheld monitor that receives the video feed from the camera unit. No OEM part number is published for this cell — match by device model before ordering.

• Grand Elite 2 parent unit fit: The Grand Elite 2 parent unit runs a single lithium-polymer cell at 3.7V. The cell dimensions — 48.76 × 30.22 × 7.20mm — match the original cavity. The connector and BMS handshake are preserved, so the parent unit reads charge state normally after swap.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a Li-Po tester. The BMS held low-voltage cutoff correctly and the cell reached full rated capacity within two standard charge cycles.
• Re-pair after swap: The Grand Elite 2 parent unit drops its wireless link to the camera unit when it loses power completely during a battery swap. After fitting the new cell, hold the pairing button on both units until the connection tone confirms. Do not skip this step — the monitor will show a signal-lost screen otherwise.

Parent unit battery draining overnight on the Grand Elite 2

Running the Grand Elite 2 parent unit through the night with the screen active is a sustained draw that a worn cell cannot sustain. The screen backlight and radio receiver together pull continuous current, and a degraded 1150mAh cell drops below the BMS cutoff before morning. A fresh cell restores capacity, but enabling the screen timeout in the monitor settings reduces the overnight draw significantly. Set screen timeout to the shortest interval you find usable — the audio alert still fires even with the screen off.

Night vision stops working after fitting a new battery

The infrared LEDs in the camera unit are not affected by the parent unit battery, but the parent unit's IR display mode needs adequate voltage to render the night vision feed correctly. If the night vision image appears black or the mode fails to activate, the new cell likely has not reached full charge yet. Charge the parent unit fully before first use — measure at the USB port input until charging stops automatically. Once the cell is at 4.2V, night vision should activate without issue.