About this replacement
Videofied W Panel Wireless Alarm System — 3.7V Li-ion Replacement Battery (WBAT100)
This is a 3.7V, 3350mAh lithium-ion cell that replaces the WBAT100 in Videofied W panel wireless alarm systems. It provides backup power to the panel during mains outages, keeping motion detection and alert transmission active. Capacity matches the original at 3350mAh (12.4Wh).
- W panel platform fit: Videofied W series panels use a single-cell 3.7V Li-ion configuration with a BMS that handshakes with the panel's charge controller on connection. The WBAT100 footprint — 66 x 21 x 18.5mm — is specific to this platform. No modifications needed; the connector and cell dimensions match OEM spec.
- Bench tested on actual hardware: We ran this cell through the W panel's charge cycle and confirmed the BMS accepted the cell without fault codes. The panel's charge controller brought the cell from resting voltage to full float without interruption.
- Post-installation float charge: Do not run a zone or diagnostic test immediately after fitting this cell. Allow 24–48 hours on float charge first. A cell installed at partial charge will trigger a low-battery fault during any test cycle run before the panel has finished conditioning the new cell.
Alarm panel showing low battery hours after installing a new cell
This is the most common call we get after a WBAT100 swap. The W panel's charge controller reports battery state based on resting voltage after a conditioning period — not immediately after connection. A new cell installed at storage voltage (typically 3.6–3.65V) sits below the panel's "full" threshold until the controller finishes its float charge cycle. The panel is not faulty and the cell is not defective. Leave the panel on mains power for 48 hours and the low-battery fault will clear automatically.
Panel losing stored programming during a power outage after battery swap
If the W panel drops its configuration during a mains failure shortly after a battery replacement, the new cell had not yet been accepted by the panel's backup circuit. The backup circuit requires the cell to reach a minimum acceptance voltage — typically 3.7V under light load — before it switches to battery power on mains loss. A cell fitted and then immediately subjected to a mains-off event may not hold enough charge to sustain the panel's memory. Keep the panel on mains for at least 48 hours after fitting the new cell before testing outage behaviour.