AEG P7.2 Replacement Battery 7.2V 3300mAh Ni-MH ABS10

AEG P7.2 / A10 Series — 7.2V Ni-MH Replacement Battery (ABS10 / ABSE10)

This is a 7.2V, 3300mAh Ni-MH replacement battery for AEG cordless power tools in the P7.2 and A10 series. It fits drills, drivers, and similar handheld tools that use the ABS10 or ABSE10 battery pack. Capacity and voltage match the original AEG specification exactly.

• P7.2 and A10 platform compatibility: Both model lines share the same 7.2V rail, connector footprint, and pack housing dimensions. The BMS handshake on these tools expects a specific cell-count configuration — this pack meets that requirement without modification.
• Bench tested on actual hardware: We ran this pack on a P7.2 drill through repeated trigger-pull cycles. The BMS handled motor-start inrush current without tripping, and cell temperature stayed within safe limits across the discharge curve.
• Ni-MH conditioning on first use: Run the tool at half load for two cycles before full torque applications. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent thresholds — skipping this step can cause nuisance cutoffs during heavy fastening.

BMS cutoff on motor-start inrush at the P7.2 trigger

When you pull the trigger on a P7.2 drill, the motor draws a short spike of current — often 3–5× the running draw — before it reaches operating speed. On a new or recently stored Ni-MH pack, the BMS overcurrent threshold may not yet be calibrated to that spike, causing an immediate shutoff. The fix is conditioning: two partial-load cycles allow the BMS to log real inrush data and widen its trip window accordingly. After conditioning, cold-start cutoffs on trigger pull typically stop occurring.

Tool bogs under sustained load and voltage drops noticeably

Voltage sag under load is a known behaviour in 7.2V Ni-MH packs, particularly when rail contact resistance is elevated. Check the battery terminals and tool contacts for oxidation or debris — resistance as low as 0.1Ω at 7.2V causes a measurable torque drop. Clean contacts with isopropyl alcohol and reseat the pack firmly. If sag continues after cleaning, measure open-circuit voltage: a fully charged 7.2V Ni-MH pack should read approximately 8.6–8.8V at rest.