About this replacement
Baxter Healthcare Tube Sealer 2380 — 12V Ni-CD Replacement Battery (11405, 5762)
This is a 12V 3000mAh Ni-CD replacement battery for the Baxter Healthcare Tube Sealer 2380. It fits the sealing mechanism that clinicians and lab technicians use to close plastic tubing for sample storage and transport. Voltage and capacity match the OEM spec: 12V, 3000mAh (36Wh).
- Tube Sealer 2380 fit: This battery matches the 2380's connector, voltage rail, and BMS handshake. The sealer's charge circuit expects a 12V Ni-CD pack — swapping chemistry types here causes charge faults and incorrect capacity readings on the device display.
- Bench tested on actual hardware: We ran charge-discharge cycles on the 2380 platform and confirmed the BMS accepted the new cell without fault codes. Voltage under the sealing load stayed within spec across the first ten cycles.
- Post-installation self-test on the 2380: After fitting this battery, let the device complete its full power-on self-test without interruption. The 2380 runs a BMS verification sequence at startup — cutting power mid-cycle triggers a false battery fault that latches until the next clean reboot.
Why the Tube Sealer 2380 alarms low battery on a freshly charged replacement
The 2380's BMS compares cell voltage at rest against a threshold calibrated to a conditioned OEM pack. A new Ni-CD cell holds a slightly different resting voltage profile until it completes one full charge-discharge cycle. That mismatch trips the low-battery alarm even when the pack is fully charged. Running one complete cycle — full charge, full discharge under the sealing load, then recharge — teaches the BMS the new cell's actual voltage curve. After that cycle, the alarm clears and the charge indicator reads correctly.
Tube Sealer 2380 not powering on after the battery has been in storage
Ni-CD cells self-discharge at roughly 1–2% per day. A pack that has sat uninstalled for several weeks can drop below the BMS recovery threshold — typically around 10V on a 12V Ni-CD — and the device will not power on at all. Connect the sealer to its charger and leave it for a minimum of 16 hours without attempting to power on. Most charge ICs on this platform apply a slow trickle below recovery voltage before switching to full charge. If the device still does not power on after 16 hours, measure the pack voltage directly at the terminals — it should read above 10.8V before the 2380 will boot.