Babyliss T24B SHB16 Replacement Battery 3.6V 2000mAh

Babyliss T24B / T24C / T24D Series — 3.6V Ni-MH Replacement Battery (SHB16)

This is a 3.6V, 2000mAh Ni-MH replacement battery for the Babyliss T24B, T24C, and T24D cordless trimmers. Part number SHB16 matches the original cell format, voltage rail, and connector used across this trimmer series. Fit this when the original cell no longer holds a useful charge or fails to charge at all.

• T24B, T24C, T24D compatibility: All three models share the same internal battery cavity, 3.6V single-cell Ni-MH architecture, and charging circuit. The SHB16 cell slots into each without modification — same footprint at 50.00 × 28.70 × 26.70mm, same connector orientation.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the T24B platform. The charging circuit accepted the cell without fault, reached full charge, and the motor ran at rated speed through the full discharge curve without mid-cycle cutoff.
• Post-rinse charging on waterproof trimmers: If you rinse this trimmer after use, let the charging port air-dry completely before docking. Moisture bridging the charge contacts can trigger a protection fault the device reports as a dead battery — when the actual cause is contact resistance, not the cell.

Capacity fade from daily partial cycling on the T24B

Ni-MH cells in grooming devices are often charged daily after a short trim — never fully depleted. This shallow-cycle pattern causes the cell's charge acceptance to drift over time, so the indicator shows full but the usable capacity has dropped significantly. Unlike lithium cells, Ni-MH chemistry benefits from occasional full discharge-to-cutoff cycles to recalibrate the internal capacity baseline. A new SHB16 cell will restore full capacity, but the same degradation pattern will return if daily partial charging continues unchanged.

Motor speed drops noticeably before the low-battery indicator activates

This happens because the motor draws a short burst of higher current during thick or dense hair passes, pulling the cell voltage down faster than the indicator circuit tracks. An aged Ni-MH cell with elevated internal resistance sags under that load even when the indicator still reads mid-charge. The trimmer's motor slows because it's receiving less voltage, not because the BMS has cut out. Replacing the cell resolves this — check that the resting open-circuit voltage on the new cell measures at or above 4.2V after a full charge before fitting.