Proscenic Pro JOJO 7.2V Ni-MH Replacement Battery 1500mAh

Proscenic Pro JOJO / Pro JOJO T1 — 7.2V Ni-MH Replacement Battery

This is a 7.2V, 1500mAh Ni-MH replacement battery for the Proscenic Pro JOJO, Pro JOJO T1, and Seven Smith cordless handheld vacuums. It slots into the same battery bay as the original cell and runs the vacuum's motor at the same voltage rail. Capacity is 1500mAh (10.8Wh), matching the original specification.

• Pro JOJO and Pro JOJO T1 compatibility: Both models share the same 7.2V motor circuit and battery bay dimensions. The connector pinout and cell pack size are identical across the Pro JOJO line, so one cell fits both variants without modification.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the Pro JOJO platform. The BMS responded correctly to charge termination and did not trigger false overcurrent cutoffs during normal suction load.
• Dock charging habit on cordless vacuums: Do not leave this vacuum sitting on its charging dock permanently. Ni-MH cells on continuous trickle charge lose capacity significantly faster than cells charged only when depleted. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

Ni-MH cells show a relatively flat discharge curve until they hit a voltage cliff. The Pro JOJO motor draws more current when the filter is even partially blocked — this accelerates voltage sag ahead of what the indicator tracks. The result is noticeable suction loss while the indicator still shows charge remaining. Clean or replace the filter first, then recheck suction at full charge — a blocked filter is the most common cause of premature power drop on this platform.

Motor cutting out briefly then recovering during use

This is a BMS overcurrent trip, not a dead battery. When sustained suction restriction forces the motor to draw beyond the cell's rated discharge threshold, the BMS cuts power momentarily to protect the cell. The vacuum recovers in a few seconds once current drops back within range. Check the filter and intake path for blockage — clearing the restriction keeps motor draw below the trip threshold. If the cutout persists on a clean filter and a fully charged cell, verify the replacement cell voltage reads at or above 8.4V immediately after charging.