About this replacement
Braun Series 10B / 180 / 190s — 1.2V Ni-MH Replacement Battery (67030922)
This is a 1.2V, 700mAh Ni-MH cell that fits Braun electric shavers including the 10B, 20B, 180, and 190s series. It replaces OEM parts 67030922, 67030368, and 1HR-AAAUV. When the original cell loses capacity, this swap restores the motor to full operating voltage without replacing the entire shaver.
- Multi-model fit — 10B, 20B, 180, 190s and 171 additional models: These shavers share the same 1.2V single-cell architecture, housing footprint (48.40 × 10.20 × 10.20mm), and connector tab layout — so the same replacement cell works across the range without modification.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Braun 190s. The BMS accepted the cell without fault codes, voltage held steady at 1.2V under motor load, and the charge indicator tracked correctly through full cycles.
- Waterproof model charging precaution: If your shaver is water-rated and you rinse it under the tap, dry the charging port completely before docking — moisture bridging the charging contacts can trigger a BMS protection fault that the shaver reports as a dead battery, not a charging error.
Capacity fade from daily partial charging on the 180 and 190s
Ni-MH cells in shavers charged daily — often before they are meaningfully depleted — develop a shallow-cycle pattern that compresses the usable voltage window over time. The shaver's charge indicator is calibrated to a full-depth cycle, so it begins reading inaccurately as the cell's effective capacity narrows. The motor still runs, but the window between "full" and cutoff shrinks noticeably. Replacing the cell and running two or three full discharge-to-cutoff cycles before recharging resets the pattern.
Motor speed drops before the low-battery indicator activates
The shaver's BMS trips on voltage, not on remaining capacity — so a worn cell can sag below the motor's operating threshold under load while the indicator still shows charge remaining. The motor slows or stutters first; the indicator catches up only when resting voltage drops far enough to register. This is voltage sag under motor load, not a circuit fault. A new cell with full internal resistance spec eliminates the sag — resting voltage should read at or above 1.2V before installation.