Orgapack OR-T250 18V Li-ion Replacement Battery 4000mAh

Orgapack OR-T250 / OR-T400 / OR-T450 — 18V Li-ion Replacement Battery (2187.002)

This 18V 4000mAh Li-ion pack replaces OEM part numbers 2187.002, 2187.002-A, 2187.004, and H-2386-BATT. It fits the Orgapack OR-T250, OR-T400, and OR-T450 battery-powered plastic strapping tools. Voltage and cell count match the original spec — the BMS handshake clears on all three models without modification.

• OR-T250, OR-T400, OR-T450 platform fit: These three tools share the same 18V battery bay, connector pinout, and BMS communication protocol. One pack covers all three models without adapters or firmware changes.
• Bench tested on actual hardware: We cycled this pack through repeated tensioning and heat-sealing sequences. The BMS held stable through the sharp motor-start current draw at maximum tension — no spurious cutoff events during the test runs.
• Cold warehouse use tip: If the tool sits in a warehouse below 10°C, bring the battery above that threshold before starting work. The tensioning motor pulls a hard current spike at peak load, and a cold cell at low state-of-charge can trip the BMS before the strap joint completes.

BMS cutoff during the tensioning cycle on the OR-T250

The OR-T250 tensioning motor draws a sharp peak current at the point of maximum strap tension — this is normal behaviour, but it pushes the pack harder than any other phase of the tool's operation. If the BMS reads a cell voltage drop below its cutoff threshold during that spike, it shuts the pack down as a protection response. This is not a faulty battery — it is the BMS doing its job when either the cells are cold, the pack charge is low, or the battery contacts have developed resistance. Before swapping the pack, clean the tool's battery contacts with isopropyl alcohol and confirm the pack is above 17V resting voltage before starting a tensioning run.

Charger shows a fault light on a new pack straight out of the box

Replacement packs can sit in storage for months before shipping, and Li-ion cells self-discharge over time. If the resting voltage drops below roughly 12–13V, some Orgapack chargers will reject the pack outright and flash a fault indicator rather than begin a charge cycle. This is a charger acceptance threshold issue, not a dead battery. Try a compatible Li-ion charger with a recovery or "boost" mode that can pre-charge below the normal acceptance floor — once cells climb back above 14V, the standard charger will accept the pack and complete a normal charge cycle.