Circuit City 4 C-Cell & 4 D-Cell Alkaline Batteries (8 Pack)
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Replacement battery for Poly SY20 USB-A speaker, 3350 mAh capacity with CE, RoHS and ISO 9001 certification
This is a direct replacement cell for the Poly SY20 USB-A speaker. It matches the original part number A0697 and delivers 3350mAh at 3.7 volts. The pack is intended for owners who need a fresh power source for that specific model.
The battery carries ISO9001, RoHS and CE certifications and includes overcharge, over-discharge, over-voltage and short-circuit protection. A fully decoded chip communicates with the speaker exactly like the factory unit, so normal charging and discharging proceed without extra heat or noise.
Online videos show the fitting process step by step, and the package includes shock-absorbing foam to guard the cell during transit. The maker offers email replies within 24 hours, a 12-month warranty and a 30-day money-back guarantee.
| Brand | Cameron Sino |
|---|---|
| Model | Poly SY20 USB-A |
| Type | unknown |
| Part Number | A0697 |
| Capacity | 3350mAh / 12.40Wh |
| Weight | 80 |
Align the new battery connector with the device socket and press until it clicks; the step many miss is fully seating the connector before closing the case.
Expect 2–3 full charge cycles to reach peak capacity, then avoid low-quality chargers; no scheduled replacement is required unless runtime drops noticeably.
The built-in protection circuit will cut power if voltage exceeds safe limits or temperature rises above 60 °C, whichever threshold is reached first.
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