Dite International A320 Replacement Battery 14.4V 3500mAh Ni-MH

Dite International A320 — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 3500mAh Ni-MH replacement battery for the Dite International A320 cordless vacuum cleaner. It fits directly into the A320 and restores power to the motor when the original cell has degraded past usable capacity. Capacity figure is taken from the product specification — 50.4Wh total.

• A320 motor compatibility: The A320 runs a brushed DC motor on a 14.4V rail. Ni-MH chemistry suits this platform — the voltage curve through discharge is gradual, which keeps motor torque consistent across most of the charge cycle rather than dropping sharply at the end.
• Bench tested on actual hardware: We cycled this cell through the A320's motor under sustained carpet-mode draw. The BMS held the output rail steady and triggered protection cleanly at low-cell threshold without hard-locking the unit.
• Dock charging practice for the A320: Do not leave the A320 sitting on the dock permanently. Ni-MH cells on continuous trickle charge develop capacity fade faster than cells charged only when depleted. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

This happens when the filter is partially blocked and the motor is pulling harder than its rated draw to maintain airflow. Higher current demand causes voltage to sag on the battery rail earlier in the discharge cycle than normal. The vacuum's electronics read that sag as low battery, but the actual cause is motor load — not a depleted cell. Clean or replace the filter first, then retest suction at a full charge.

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

This is a BMS overcurrent trip. When suction is restricted — blocked nozzle, clogged filter, or hair wrapped around the brush roll — the motor stalls against the resistance and current spikes. The BMS cuts output to protect the cell. After a short pause the BMS resets and the vacuum powers back on. Clear the blockage and check the filter before the next run. If the trip repeats on unrestricted surfaces, verify the replacement cell voltage reads at or above 14.4V when fully charged.