About this replacement
JTech Commpass VOICE PAGER — 2.4V Ni-MH Replacement Battery (30AAAK2BMX)
This 2.4V 230mAh Ni-MH cell replaces the internal battery in JTech Commpass VOICE PAGER, Commpass VTF PAGER, Glowster PLUS, and PAGSPVTFPB units. It matches the OEM cell dimensions at 23.20 x 20.90 x 10.40mm, fitting the original holder without modification. Voltage and capacity figures come directly from the product data — 2.4V, 230mAh (0.55Wh).
- Commpass and Glowster series compatibility: These pagers share a common cell format and voltage rail across the Commpass VOICE, Commpass VTF, and Glowster PLUS lines. The same 2.4V Ni-MH cell services all of them — same connector footprint, same BMS voltage thresholds, same physical holder geometry.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench. The BMS accepted the Ni-MH voltage curve without flagging a fault, and the low-battery indicator cleared after one full charge cycle from storage voltage.
- Power-cycle after installation: After fitting the new cell, power the pager fully off and back on. Some units in this series require a fresh boot to re-register on the paging network and reset the low-battery threshold to the new cell's voltage baseline.
Why the Commpass pager shows low battery immediately after a new cell install
Ni-MH cells ship at storage voltage — typically around 1.0–1.1V per cell, which sits below the pager's normal operating range. The low-battery indicator reads this as a depleted cell before the first charge completes. This is not a fault with the battery or the device. Run the pager through one full charge cycle and the indicator will reset. If it persists past a full charge, check that the terminal spring is making clean contact with both poles of the cell.
Commpass pager not receiving alerts after battery swap
A hard power loss — including a battery replacement — can drop the pager's registration with the paging network. The unit powers on but sits in an unregistered state, so alerts never arrive. Power the device fully off, leave it off for ten seconds, then power it back on. This forces the pager to re-broadcast its ID to the network and re-establish the alert channel.