The AP12A3i (AP12A4i) is a high-capacity 11.1V 54Wh (4850mAh) 6-cell Li-ion replacement battery for the Acer Aspire Timeline Ultra M3 (M3-481, M3-581) and Aspire Timeline Ultra M5 (M5-481, M5-581) series. It replaces original part numbers AP12A3i, AP12A4i and 3ICP7/67/90. Built with Grade-A cells and an integrated BMS, it ensures stable voltage delivery and protection against overcharge, restoring original all-day mobility for your ultrabook. Backed by a 1-year warranty.
Product Specifications
| Battery Model | AP12A3i / AP12A4i / 3ICP7/67/90 |
| Capacity | 4850mAh / 54Wh |
| Voltage | 11.1V |
| Battery Type | Li-ion, 6-cell |
| Color | Black |
| Condition | 100% Brand New Replacement |
| Warranty | 1-Year Warranty |
Replace Part Numbers
- AP12A3i
- AP12A4i
- 3ICP7/67/90
Compatible Laptop Models
- Acer Aspire M3-481
- Acer Aspire M3-481TG
- Acer Aspire M3-581TG
- Acer Aspire M5-481T
- Acer Aspire M5-481TG
- Acer Aspire M5-581T
- Acer Aspire M5-581TG
FAQ
- Q: Are AP12A3i and AP12A4i batteries interchangeable?
- A: Yes — the AP12A3i and AP12A4i are electrically identical and cross-compatible across all Acer Aspire M3 and M5 configurations listed above; the suffix simply denotes an OEM manufacturing variant.
- Q: How can I improve the lifespan of my new Acer ultrabook battery?
- A: Avoid keeping the laptop constantly plugged in at 100% charge; we recommend running a full calibration cycle (100% to 5%) once a month and using balanced power profiles in Windows to preserve cell health.