I was asked recently about using rechargeable batteries for wireless microphones. I discovered that I have two completely different opinions on the topic:
1) What I say I believe: There’s no two ways about it: batteries are expensive; 9v batteries are the worst, but even AA batteries aren’t cheap in the quantities we need for a largely wireless church stage. Current professional rechargeables are up to the task, and NiMH is a competent technology.
Consumer rechargeables only produce about 7½ volts on their best day, so we don’t go there, but pro batteries can power nearly all wireless well for at least a couple of hours.
I never really liked the memory challenges with NiCad batteries, but with nickel-metal hydride (NiMH) batteries, the batteries are more reliable.
However, some manufacturers like Shure and Lectrosonics, still don’t like using any rechargeable 9v batteries, though they’re not as fussy about rechargeable AA batteries; apparently there are enough differences in the batteries and in the wireless technologies that use them that AA rechargeables aren’t so evil. Fortunately, many wireless manufacturers have moved to AA technology.
2) What I really believe: I don’t use rechargeables for my own church’s wireless, and I have six or eight wireless systems. (I just did a quick survey: nobody here uses rechargeables in their own or their church wireless systems.)
Some of our reasons:
a. Power curve: Rechargeables drain non-linearly. Alkaline drains linearly. That means that an alkaline battery, when it nears the end of its lifespan, is still usable. You know it’s getting tired, because you’re getting a few dropouts. It’s frustrating, but it’s not the end of the service.
When a rechargeable battery starts to go, you have a few seconds until it’s completely dead. If that happens 5 minutes before the service is over, you’re toast, whereas with an alkaline, you can easily cope for that last few minutes.
There no personal electronics forum, so
I wonder if some comp-forum people would be kind enough to answer questions about buying an MP3 player.
People (including me) have asked on the music forum, but there usually aren't any replies.
I want to buy an MP3 player ASAP. It will be my first. I am thinking I should go with either iPod or iRiver. Here are some of the things I'm looking for. I'd appreciate comments or suggestions.
- At least 1000 songs' worth of internal storage
- easy to play through speakers as well as headphones. I'll need powered speakers, right? But I need this setup to be as portable as possible
Merit Shok Ultra Portable Mini Wireless Bluetooth Outdoor Speaker with Microphone and 10hours Rechargeable Battery for iPhone 5S/5C, iPad, Samsung Galaxy S5/S4/Note, Blackberry, Android/Windows phone, Tablet and other Bluetooth Devices-Green
- Portable rugged design and considerate accessories make it an optimal speaker for outdoors like cycling, hiking, running, camping, picnic: flexible bike holder fits...
- Palm-size compact and 7 ounces lightweight, solid zinc alloy surrounded amplifier, enhanced bass, pumping out 360-degree clear, full and powerful sound, reducing...
- Latest CSR Bluetooth V.4.0(fully backward compatible), energy saving, swift and much more stable up to 30meters/about 100-ft wireless connecting with Bluetooth enabled...
- Built-in rechargeable Grade A polymer battery lasts close to 10 hours of wireless play on a single charge (3hours) ,so it can keep you accompany all day with music...
- Package includes: Merit™ Portable Bluetooth Speaker, Bike Holder, Carabiner, Rain Bonnet, Micros-USB Charging Cable, Aux Cable, Lanyard and User Manual
August EP650 Bluetooth Wireless Stereo NFC Headphones - Comfortable Leather Cushioned Headset with built-in Microphone, 3.5mm Audio In Socket and Rechargeable Battery - Compatible with Mobile Phones, iPhone, iPad, Laptops, Tablets, Smartphones etc. (Black)
- Built-in Microphone - Stay connected to your phone with hands free calling
- NFC Connection - Simply tap your NFC enabled device to pair the two together
- Music, Volume and Calls control Buttons - Answer calls & control your music
- Bluetooth Wireless Headphones – Listen to audio from smartphones and tablets
- Internal Li Ion Battery - Rechargeable battery gives over 10 hours between charges + 3.5mm Standard Audio In Socket - Connects to any non Bluetooth device
Technical Pro WASP800UIBT 8" Portable PA System with Rechargeable Battery & Wireless VHF Handheld Microphone, 800 Watts Peak Power, Bluetooth 2.4GHz
CE (Technical Pro)
- Manufactured to the Highest Quality Available.
- Design is stylish and innovative. Satisfaction Ensured.
- Great Gift Idea.