Electrolux EUP84DB Replacement Battery 33.3V 2000mAh

Electrolux EUP84DB Series — 33.3V Li-ion Replacement Battery (140112530260)

This is a 33.3V 2000mAh (66.6Wh) Li-ion battery pack for the Electrolux EUP84DB and related cordless stick vacuum models. It fits across the EUP84IGM, EUP86TBMFLOORSTI, and EUP8GREEN series, among others. The OEM part numbers 140112530245, 140112530039, and KL8314576 all cross-reference to this same cell configuration.

• EUP84 and EUP86 platform compatibility: These models share the same 33.3V battery rail, connector pinout, and BMS handshake protocol. Swapping this pack across compatible models in that range requires no adapters or firmware changes — the vacuum's power management board reads the same signals it expects from the factory cell.
• Bench tested on actual hardware: We ran this pack through charge cycles on the EUP84 platform and confirmed BMS communication, proper charge termination, and correct voltage step-down to the motor controller. The pack reached full rated voltage without triggering false cutoff events.
• Dock charging habit for this vacuum: Do not leave this vacuum sitting on the charging dock between uses. The EUP84 series dock delivers a continuous trickle once full, and Li-ion cells at sustained high state-of-charge degrade noticeably faster. Charge to full, then remove it from the dock.

Suction dropping before the battery indicator reaches low

On the EUP84 platform, the motor draws significantly more current when the filter is partially blocked — even when airflow still feels adequate. That elevated draw causes voltage to sag under load before the cell is genuinely depleted, and the vacuum's electronics interpret this sag as a low-battery condition. The result is reduced motor speed that looks like a dying battery but is actually a restricted-airflow problem. Clean or replace the filter first, then retest — if suction restores to full strength, the battery is not the cause.

Motor cuts out mid-clean and then recovers after a pause

This is a BMS overcurrent trip, not a dead battery. When suction is blocked — clogged filter, hair wrap at the brush roll, or an obstruction in the duct — the motor pulls harder to maintain airflow, exceeding the current threshold the BMS is set to protect. The pack shuts output to protect the cells, then resets after a short thermal recovery window. Clear the blockage, wait for the motor to cool for roughly two minutes, and restart. If trips continue with a clean filter, check that the battery contacts are fully seated — a partial connection causes resistance that compounds the overcurrent reading.