Product Details:
- Simple and economic Sony battery charger
- Charges up to 4 AA or AAA Ni-MH batteries
- Compact design and worldwide voltage capability perfect for travelers
- Includes 4 high capacity Ni-MH AA batteries
- Compact Size and Worldwide Voltage Capacity Allow For Easy Charging Anywhere
This set includes 4 AA cells Made in Japan for Sony by Sanyo, as well as a timed charger, NOT a smart charger as its similar looking Sony variants.
The Sony Power Charger can recharge 4 AAA or AA cells at a time. Unlike the Panasonic BQ-390 which I also used and reviewed, this Sony uses a timer to stop charging. The Panasonic BQ-390 has advanced circuitry inside to monitor charging through temperature, voltage drop, and the cell's internal resistance, so that you'll get more precise charging and less damage from overcharging of simpler chargers. Sony also offers a similarly advanced product, but this model is a cheaper timed model. It charges the 2100mAH cells for 8 hours straight, or 800 mAh AAA cells for 7 hours straight. If you charge a partially used cell, it will not detect when the cell reaches full charge, and might overcharge. It's best to charge a fully depleted cell with timed chargers.
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