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Updated
Pros
  • Perfect for high-drain devices
  • Pre-charged
  • Long-lasting
  • Very high capacity
  • Long-lasting
  • Pre-charged
Cons
  • Lower capacity compared to AA/AAA batteries
  • Higher cost compared to other battery types
Bottom Line
Energizer's 9V batteries are perfect for high-drain devices, offering a long-lasting charge and multiple recharge cycles.
Powerex's D batteries offer reliable performance and long-lasting power for high-drain devices.
Battery Type
Ni-MH
Ni-MH
Capacity
175mAh
10000mAh
Voltage
8.4V
1.2V
Recharge Cycles
Up to 500
Up to 1000
Height
0.0393700787 inches
5 Inches
Length
0.0393700787 inches
3.5 Inches
Weight
0.180625 pounds
-
Width
0.0393700787 inches
1.5 Inches
Part Number
4330205584
MHRDP2
Model
4330205584
MHRDP2

When it comes to powering devices that require a reliable and long-lasting energy source, rechargeable batteries are an excellent option. Two popular choices in this category are the Energizer Rechargeable 9V and the Powerex Rechargeable D. In this comparison, we'll delve into the features, performance, and overall value of these two products to help you decide which one best suits your needs.

Energizer Rechargeable 9V

The Energizer Rechargeable 9V is a high-capacity battery designed for use in devices such as smoke detectors, carbon monoxide detectors, and other applications that require a 9-volt power source. With up to 4 hours of charging time, these batteries can be reused hundreds of times, making them an eco-friendly alternative to disposable batteries. The Energizer Rechargeable 9V has a capacity of 250mAh and retains its charge for up to 6 months when not in use.

Powerex Rechargeable D

The Powerex Rechargeable D is a high-performance battery designed for use in devices such as flashlights, radios, and other applications that require a lot of power. With a capacity of 10,000mAh, these batteries have an impressive energy storage capability, making them ideal for heavy-duty use. The Powerex Rechargeable D has a long cycle life, with up to 300 charge cycles possible before the battery's capacity starts to degrade.

Comparison

Both the Energizer Rechargeable 9V and the Powerex Rechargeable D are high-quality rechargeable batteries designed to provide reliable power to your devices. However, there are some key differences between the two:

  • Capacity: The Powerex Rechargeable D has a significantly higher capacity than the Energizer Rechargeable 9V (10,000mAh vs. 250mAh). This makes the Powerex battery better suited for heavy-duty applications where a lot of power is required.
  • Size and compatibility: The Energizer Rechargeable 9V is specifically designed for use in devices that require a 9-volt battery, whereas the Powerex Rechargeable D is a larger D-sized battery. This means that the Powerex battery may not be compatible with all devices, so it's essential to check the device's manual before purchasing.
  • Charging time: The Energizer Rechargeable 9V has a shorter charging time than the Powerex Rechargeable D (4 hours vs. 12-14 hours). However, this is because the Energizer battery has a lower capacity and requires less energy to charge.

Conclusion

In conclusion, both the Energizer Rechargeable 9V and the Powerex Rechargeable D are excellent rechargeable batteries that offer reliable power and long-lasting performance. The choice between these two products ultimately depends on your specific needs and requirements. If you need a high-capacity battery for heavy-duty use, the Powerex Rechargeable D is likely the better option. However, if you're looking for a reliable 9-volt battery for devices such as smoke detectors or carbon monoxide detectors, the Energizer Rechargeable 9V may be the way to go.

When shopping for rechargeable batteries, it's essential to consider factors such as capacity, size and compatibility, charging time, and overall value. By choosing the right rechargeable batteries for your needs, you can enjoy reliable power, reduce waste, and save money in the long run.