Hab long in power chargers researched as well, and I am after some time hanging with SANYO remained. While I can not confirm that the battery even after 5 years still have good capacity. But I made the following experience:
- Fast recharge
- Long capacity: Use the Xbox 360 Wireless Controller: Approximately 21 days in use (~ 8 hrs / day), then comes the first message from the program. But after that you can make good use of three days him.
- Good charger, no overheating, LEDs indicate charging. Removing and Replacing the battery is straightforward and associated with little effort.
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I extend my recession after every 6 months.
Robz