Rechargeable Headset Battery NiMH 70 mAh/2.4 V-BA151- for Sennheiser:
| A 200 | RS 6 |
| HDI 302 | RS 60 |
| IS 150 | RS 65 |
| IS 300 | RS 8 |
| IS 380 | RS 80 |
| RS 2400 | RS 85 |
| RS 30 | Set 250 |
| RS 4 | Set 2500 |
| RS 40 | Set 500 |
| RS 400 | Set 810 |
| RS 45 | Set 820 |
Part No: 004146 (replaces the old Part BA150)