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GMCELL Rechargeable USB Battery Testing

GMCELL USB Rechargeable Battery Review: Voltage Testing and Power Bank Charging Performance 

About GMCELL

In today’s power-hungry world, rechargeable batteries have become a staple that is both convenient and environmentally friendly.GMCELL is a well-known name in the battery manufacturing industry and offers a range of USB rechargeable batteries. The purpose of this review is to evaluate the performance of GMCELL USB rechargeable batteries, with focus on voltage testing.

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Voltage Testing

 

To test the voltage of the GMCELL USB rechargeable batteries, a precision digital multimeter was used. The batteries were fully charged using a standard USB port on a computer, following the recommended charging time provided by GMCELL. After charging, the open-circuit voltage (OCV) of each battery was measured immediately. Subsequently, the batteries were subjected to a simulated load test. A resistor with a value equivalent to the typical load of a common household device (such as a portable radio) was connected across the battery terminals, and the voltage was measured again under this loaded condition.

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Results

  • Open – Circuit Voltage: The GMCELL USB rechargeable AA batteries, rated at 1.5V, showed an average open – circuit voltage of 1.52V when fully charged. This indicates that the batteries are well – manufactured and can reach a voltage close to the nominal value. The AAA batteries, also with a nominal voltage of 1.5V, had an average OCV of 1.51V. These results suggest that GMCELL batteries have a reliable charging system that can bring the batteries to their optimal voltage levels.
  • Loaded Voltage: Under the simulated load, the AA batteries maintained an average voltage of 1.45V, which is a very stable performance. This small drop in voltage under load demonstrates the battery’s ability to deliver a consistent power supply to devices. The AAA batteries showed a similar performance, with an average loaded voltage of 1.43V. This stable voltage output is crucial for devices that require a constant power source to function properly, such as remote controls and small electronic toys.

Unleash Unrivaled Convenience with GMCELL USB Rechargeable Batteries

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Tired of being tethered to traditional chargers or running out of battery power on the go? GMCELL USB rechargeable batteries are your ultimate solution. With a simple USB port, you can charge these batteries anywhere—from your laptop during a business trip to a power bank on a camping adventure. No need for bulky, specialized chargers.
Seamlessly compatible with a vast array of devices, they power everything from your favorite wireless mouse to essential remote controls. Say goodbye to the hassle of constantly buying disposable batteries. GMCELL’s USB rechargeables offer a convenient, eco-friendly, and cost-effective way to keep your devices running smoothly, anytime, anywhere.