Power-bank boost module
Synchronous boost to 5.1 V · 2.4 A USB-A out · low-battery cut-off at 3.0 V (restarts after recharging) · about 90 % efficient
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: 5 V 2.4 A power-bank boost module
Pins
- IN+
- IN−
- OUT+
- OUT−
Ratings and limits
| Input | 2.5–4.5 V (one lithium cell) |
|---|---|
| Output | 5.1 V, 2.4 A |
| Efficiency | about 90 % |
| Low-battery cut-off | 3.0 V, restarts above 3.35 V |
How to use it
The part that turns a 3.7 V (or 3.2 V) cell into USB 5 V. Its cut-off is the power bank’s first line of over-discharge protection; the protection board’s 2.5 V limit is the backup.
Lessons and builds that use it
- 10,000 mAh power bank · 4 × 18650 (build)
- 20,000 mAh power bank · 8 × 18650 (build)
- 40,000 mAh power bank · 16 × 18650 (build)
- 10,000 mAh power bank · 2 × 21700 (build)
- 20,000 mAh power bank · 4 × 21700 (build)
- 40,000 mAh power bank · 8 × 21700 (build)
- 12,000 mAh LiFePO4 power bank · 2 × 32700 (build)
- 24,000 mAh LiFePO4 power bank · 4 × 32700 (build)
- 42,000 mAh LiFePO4 power bank · 7 × 32700 (build)