Ytst-c01 Battery [Limited Time]

Your device will give you warning signs when the YTST-C01 is failing. Look for these symptoms:

The YTST-C01 is slightly thicker than a slim card-style bank but shorter. It’s built from fire-retardant ABS + PC material with a subtle matte finish that resists fingerprints.

Where it shines: Dual input options. You can recharge the bank itself via USB-C or Micro-USB. That’s a lifesaver if you still have legacy cables lying around. Input maxes at 18W, so refilling the 10,000mAh version takes about 3 hours. ytst-c01 battery

The built-in flashlight (long-press the power button) is a simple but welcome addition—perfect for finding keyholes or rummaging through a tent at night.

Avoid no-name sellers on auction sites. For a component that can potentially catch fire, quality matters. Your device will give you warning signs when

Recommended sources:

Red Flags to avoid:

3.1 Initial capacity
At 0.2 C, average capacity = 2153 mAh (102.5% of nominal). At 1 C, capacity = 2058 mAh (98.0%). At 3 C, capacity reduced to 1724 mAh (82.1%) due to ohmic polarization.

3.2 Cycle life
After 500 cycles: 82.3% remaining capacity. Linear extrapolation suggests end-of-life (80% SOH) at ~580 cycles. DC internal resistance increased from 38 mΩ to 43.5 mΩ. Red Flags to avoid: 3

3.3 Thermal behavior
Maximum surface temperature during 2 C discharge: 42.8 °C (ambient 25 °C). At 3 C, peak reached 51.2 °C, exceeding vendor’s “safe” 50 °C limit.

3.4 Impedance spectroscopy
Charge-transfer resistance rose from 22 mΩ to 31 mΩ after 500 cycles, suggesting electrode-electrolyte interface degradation.

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