The AP16M5J is a premium 7.7V 37Wh (4810mAh) Li-ion replacement battery for Acer Aspire 1 (A114-31), Aspire 3 (A314-31, A315-21, A315-51), Aspire 5 (A515-51) and ES1-523 series laptops. It directly replaces original part numbers AP16M5J, KT.00205.004, KT.00205.005 and 2ICP4/80/104. Built with high-quality cells and an integrated BMS to manage cycles and prevent overcharge, it restores original high-mobility runtime for your Acer notebook, backed by a 1-year warranty.
Product Specifications
| Battery Model | AP16M5J |
| Capacity | 4810mAh / 37Wh |
| Voltage | 7.7V |
| Battery Type | Li-ion |
| Cell Quality | Grade-A, Made in China |
| Color | Black |
| Condition | 100% Brand New Replacement |
| Warranty | 1-Year Warranty |
Replace Part Numbers
- AP16M5J
- KT.00205.004
- KT00205004
- KT.00205.005
- KT00205005
- 2ICP4/80/104
Compatible Laptop Models
- For Acer Aspire 1 A114-31 Series
- For Acer Aspire 3 A314-31 Series
- For Acer Aspire 3 A315-21 Series
- For Acer Aspire 3 A315-51 Series
- For Acer Aspire 5 A515-51 Series
- For Acer Aspire ES1-523 Series
FAQ
- Q: Does this battery fit the Acer Aspire A315-21-95KF?
- A: Yes — the AP16M5J is the designated battery for the entire A315-21 family, matching original energy density and voltage.
- Q: How can I ensure the best lifespan for my new Acer battery?
- A: To maintain the high-quality cells, avoid keeping the laptop at 100% charge for long periods; we recommend disconnecting the power when full and performing a full discharge-charge cycle monthly to keep the BMS accurate.