Fimap e-Spray 18V Replacement Battery 230390 2000mAh

Fimap e-Spray — 18V Li-ion Replacement Battery (230390)

This is an 18V 2000mAh (36Wh) lithium-ion replacement battery for the Fimap e-Spray cordless electrostatic sprayer. It fits the e-Spray platform directly and matches the original voltage rail and connector configuration. OEM part numbers 230390 and YLD02-18V2AH both apply to this unit.

• e-Spray platform fit: The e-Spray uses a dedicated 18V Li-ion pack with a BMS that manages the electrostatic pump motor's inrush current on trigger activation. The connector keying and cell configuration match the OEM spec — voltage rail alignment is critical here because the pump draws a short spike on startup before settling to steady draw.
• Bench tested on actual hardware: We cycled this pack through repeated trigger-pull sequences on the e-Spray pump circuit and confirmed the BMS handled startup inrush without tripping overcurrent protection. Cell voltage held within spec across discharge, and the charger handshake completed correctly on both fresh and post-storage packs.
• Pump motor cycling care: If the sprayer sits unused for several weeks, the BMS may enter a low-power state that briefly delays the first trigger response. Run a full charge cycle before returning the unit to service — this reactivates the BMS and resets the overcurrent threshold profiling for the pump motor.

BMS cutoff on e-Spray pump motor inrush at trigger pull

The e-Spray pump draws a short current spike the moment the trigger activates — this is the motor inrush, and it can exceed the BMS overcurrent threshold if the cells are cold or below roughly 30% charge. When that happens, the BMS cuts power immediately to protect the cells, and the sprayer stops responding. Warming the battery to room temperature and charging above 50% before use reduces inrush-related trips significantly. A new pack fresh from storage may need one full charge cycle before the BMS profiles the motor draw correctly.

Charger shows no activity or blinks red on a new pack after storage

Li-ion cells that have sat in storage for more than a few months can drop below the charger's acceptance voltage threshold — typically around 2.5V per cell. When that happens, the charger refuses to begin a full charge cycle and either does nothing or signals a fault. Most chargers compatible with this pack include a recovery or trickle mode that slowly brings cell voltage back up to acceptance level. If your charger supports it, leave the pack connected for 15–30 minutes in recovery mode until the charge LED transitions from fault to normal charge status.