Tondeo ECO XP Replacement Battery 3.6V 1200mAh Ni-MH

Tondeo ECO XP / ECO XP Profi — 3.6V Ni-MH Replacement Battery

This is a 3.6V, 1200mAh Ni-MH replacement battery for the Tondeo ECO XP and ECO XP Profi professional hair clippers. It slots into the clipper housing where the original cell sits and restores full cutting power when the factory battery can no longer hold a usable charge. Dimensions are 45.70 × 33.60 × 18.00mm — confirm these against your original before ordering.

• ECO XP and ECO XP Profi fit: Both models run the same 3.6V single-cell architecture with an identical battery bay footprint and connector orientation. One cell covers both variants — no adapter, no modification required.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the ECO XP platform. The motor drew consistent current across the cycle, and the BMS cut off cleanly at the low-voltage threshold without false triggering under blade load.
• Clipper-specific charge habit: Ni-MH cells in high-use clippers suffer voltage depression when repeatedly topped up after short cuts. Let the clipper run until the indicator drops before recharging — this keeps the cell's capacity reporting accurate and prevents premature cutoff during longer sessions.

Capacity fade from daily partial charging on the ECO XP

Ni-MH cells develop a memory effect when cycled repeatedly over a narrow state-of-charge window. In a busy salon where the clipper gets a quick top-up between every client, the cell gradually loses access to its lower capacity band. The battery indicator still reads full after charging, but the usable window has shrunk — the clipper cuts out well before the indicator hits empty. A full depletion and slow recharge cycle resets this behaviour on a fresh cell; avoid the habit with the replacement from day one.

Motor speed dropping before the indicator shows low

This is voltage sag under blade load, not a dead battery. As a Ni-MH cell ages, its internal resistance rises — under the brief current spike of cutting through thick hair, the voltage drops enough to slow the motor before the BMS registers a low-battery condition. The indicator still shows partial charge because resting voltage recovers quickly between cuts. If the replacement cell shows the same behaviour early in its life, check that the blade tension isn't set too high, which increases motor load and exaggerates sag. A correctly tensioned blade should hold steady motor speed down to approximately 3.0V.