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I've only got AA rechargeable which I use in my camera. They are Energizer ones and the charger is the same make, it takes about 15 minutes to charge, there is a red light when you first start to charge which turns to green when the batteries are charged. The charger takes AA and AAA. Trouble is I don't use the camera enough so you can bet each time I want to use it I've got to charge the batteries before I can.
The only headphones I have don't need batteries they were cheap ones and just plug into the computers front jacks.
Joan, look into the Sanyo Eneloop batteries, they are what's called a LSD (far out) battery Low Self Discharge. They hold up to 75% of their charge after 3 years. And they can be recharged up to 1500 times. Basically, you charge them, and they are ready when you need them.
Great, glad I could help. I did some research about recargeable before I got mine. Regardless of their ability to retain a charge over time, they were always highly rated for their operation and recharge cycles. A Guy
Computer type PC/Desktop System Manufacturer/Model Number Home Built Desktop By DataTech OS Windows 7 Ultimate X64 SP1 CPU Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU Motherboard ASUS P8Z68-V PRO/GEN3 Memory 16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB Graphics Card ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost) Sound Card Onboard Realtek 5-1 Monitor(s) Displays Samsung P2570HD Screen Resolution 1920x1080
Keyboard E-Z Eyes, bright yellow keys with large characters Mouse steelseries SENSEI Laser Pro Gaming PSU Corsair HX650W Case Inwin Dragon Rider Cooling Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM Hard Drives Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data Internet Speed 48-51Mbs Mbs down, 11 Mbs up Xfinity Cable Antivirus Norton Internet Security 2013 Browser IE 10, Opera, Pale Moon if needed Other Info 4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.