Description
Product Overview
This Acer AS16A5K 40.8Wh battery is a genuine replacement part designed specifically for compatible Acer laptops. It delivers reliable power and performance for your mobile computing needs.
Specifications
- Battery Type: Li-ion
- Capacity: 40.8Wh
- Voltage: 11.1V
- Condition: Brand New
Compatible Part Numbers (P/N)
This battery replaces the following Acer part numbers:
- AS16A5K
- AS16A8K
- AS16B5J
- AS16B8J
- KT.00405.001
- KT.00407.004
- KT.0040G.007
- KT.00605.002
- KT.0060G.001
- KT.00805.002
Compatible Laptop Models
This battery is compatible with these Acer laptop series:
- Aspire E5-475, E5-475G, E5-476, E5-523, E5-523G
- Aspire E5-553, E5-553G, E5-575, E5-575G, E5-575T, E5-575TG
- Aspire E5-576, E5-576G, E5-774, E5-774G
- Aspire ES1-432
- Aspire F15 (F5-522, F5-573, F5-573G, F5-573T)
- Aspire F17 (F5-771, F5-771G)
- Aspire K50-20, K50-20-575N
- TravelMate P2 (P259-G2-M, P259-M)
- TravelMate P249-G2-M, P249-G2-MG, P249-M
- TravelMate P259-G2-M, P259-G2-MG, P259-M, P259-MG
When to Consider Battery Replacement
| Symptom | Description |
|---|---|
| Short Battery Life | Laptop powers off quickly when unplugged, lasting significantly less than original runtime |
| Battery Not Charging | Battery percentage doesn’t increase when charger is connected, or charges extremely slowly |
| Swelling/Bulging | Battery case appears swollen, distorted, or causes laptop casing to separate |
| System Errors | Laptop displays “battery not detected” or “consider replacing your battery” messages |
| Age Factor | Battery is over 2-3 years old with noticeable performance degradation |
| Intermittent Power | Laptop randomly shuts down even with battery charge showing available power |
Compatibility Note
The compatibility list above shows the most common models and part numbers. If your specific laptop model or battery part number isn’t listed, please leave it in the order notes during checkout. We’ll verify compatibility and confirm before shipping.
Shipping & Warranty
- Ships within 1 business day
- 30-day money back guarantee
- 1-year manufacturer warranty
- Free shipping
- 100% brand new product
- In stock, ready to ship




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