The ThinkPad 61 (24Wh), 61+ (48Wh) and 61++ (72Wh) are 100% brand-new external Power Bridge batteries for Lenovo ThinkPad T470, T480, T570, T580, P51s, P52s, A475, A485 and ThinkPad 25. They replace 01AV423, 01AV424, 01AV425, 01AV426, 01AV427, 01AV428, SB10K97580, SB10K97582 and SB10K97584, backed by a 1-year warranty.
Product Specifications
| Battery Model: | 61 / 61+ / 61++ |
| Capacity Options: | 2100mAh / 24Wh · 4400mAh / 48Wh · 6600mAh / 72Wh |
| Voltage: | 11.4V (61) / 10.8V (61+, 61++) |
| Battery Type: | Li-ion (External Removable) |
| Condition: | 100% Brand New |
| Warranty: | 1-Year Warranty |
Replace Part Numbers
- 01AV423
- 01AV424
- 01AV425
- 01AV426
- 01AV427
- 01AV428
- SB10K97580
- SB10K97582
- SB10K97584
Compatible Models
- ThinkPad T470 / T480
- ThinkPad T570 / T580
- ThinkPad P51s / P52s
- ThinkPad A475 / A485
- ThinkPad 25 Anniversary Edition
FAQ
- Q: Can I hot-swap this external battery without shutting down?
- A: Yes — with a healthy internal battery, Lenovo Power Bridge lets you swap the 61-series external battery while the laptop stays on.
- Q: Does the 72Wh 61++ model protrude from the laptop?
- A: Yes — the high-capacity 61++ is slightly larger and extends from the bottom, giving nearly 3× the runtime of the slim 3-cell version.