Mosquito Magnet Independence 4.8V Replacement Battery 565-035

Mosquito Magnet Independence / MM3200 — 4.8V Ni-MH Replacement Battery (565-035)

This is a 4.8V 3000mAh Ni-MH replacement battery for the Mosquito Magnet Independence and MM3200 mosquito trap. It powers the device's fan motor and ignition system. When the original pack loses the ability to hold a charge, the trap fails to attract or retain mosquitoes — this battery restores that function.

• Independence and MM3200 compatibility: Both models share the same 4.8V battery rail, connector format, and charge circuit. The 565-035 fits either unit without modification. Cross-reference part numbers 9994141, MM565035, and 565-022 all point to the same physical cell pack.
• Bench tested on actual hardware: We cycled this pack through the ignition and fan draw sequence. The BMS held stable through ignition spike and sustained fan load. Cell balance across the Ni-MH pack stayed within spec across multiple discharge cycles.
• Ignition system care: The Independence igniter draws a brief current spike each start cycle. If the trap is stored without use for several weeks, run a full charge before the next deployment season — a partially discharged Ni-MH pack sitting idle drops voltage gradually and the ignition circuit may fail to fire if cell voltage has drifted below threshold.

Why the Independence fan runs slow or stops mid-cycle

The fan motor on the Independence draws continuous current the entire time the trap is active. Ni-MH cells that have been shallow-cycled repeatedly — charged before they fully discharge — develop a voltage depression effect that cuts apparent capacity. The trap's control circuit interprets the sagging voltage as a depleted pack and reduces fan speed or shuts down. A full discharge followed by a slow charge resets the cell voltage profile and often recovers usable capacity in mildly affected packs.

Charger light stays red and never switches to green on a new pack

The Mosquito Magnet charger uses a delta-V detection method — it looks for a voltage rise during charging to confirm the pack is accepting current. If this battery has been sitting in storage, the cell voltage can drop low enough that the charger's detection circuit times out before seeing that rise. Remove the pack, leave it at room temperature for 30 minutes, then reconnect. If the charger still won't transition, check that resting cell voltage is above 4.0V before attempting a charge cycle.