Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
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18650 Lithium Ion Cell — 3.7V 2200mAh
The 18650 Lithium Ion Cylindrical Battery (3.7V, 2200mAh) is the industry-standard rechargeable cell used in laptop battery packs, power banks, flashlights, and DIY battery projects. Use with an 18650 holder and a compatible charger.
18650 cell comparison
| Cell | Capacity | Max drain | Best for |
|---|---|---|---|
| Standard 2200mAh (this) | 2200 mAh | Standard | General use, power banks |
| Samsung 25R | 2500 mAh | 20A continuous | High-drain: motors, vaping |
| High Drain 2500mAh | 2500 mAh | High | RC, power tools, motors |
Technical specifications
| Size | 18650 (18mm × 65mm) |
|---|---|
| Chemistry | Lithium Ion |
| Voltage | 3.7V nominal |
| Capacity | 2200 mAh |
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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