Rechargables are becoming the mainstay of the Broadway touring industry. 30 to 40 channel count productions. Daily 5 hour use times. Virtually 0 failure rate. Rechargables are here to stay.

Environmental aspects must also be considered.  A lot of AA & 9V end up in landfill if rechargeable batteries aren’t used.  Then again recharging is probably not very energy efficient either.  I believe the solution is integrated rechargeable batteries, like mobile phones.  This will make the initial cost of the product more so the wireless mic manufacturers are probably reluctant to take initiatives here. Hint, hint, Shure!

our church uses 3 shure 9v handhelds (old sc models i forget the exact model)the fourth is used as a lavalier for pastor (alkaline).
i’ve tried nicads= horrible experience because of short life and memory.
nimh=good, decent but no warning of impeding voltage. tysonic, ipower, and powerex.
li-ion=currently using (+1 year), very good results ~4 hours. ipower 520mAh ($$)
if i remember i’ll try to run a fully charged battery for tomorrows rehearsal and see how long they last.

We have a high profile industrial tour out with everything running on rechargables.  No failures so far.  The AKG guys were smart enough to put the charger tabs in them so I can just from the transmitter into the charger.

For AA’s the Energizer 15-minute charge setup you can find at Wal-mart and most electronics stores works very well.  The charger is of the intelligent sort that shuts off after the charge cycle is completed and the charge time is rapid enough to start it fresh during setup for a service.  I replace mine once a year and I’m easily getting 5-6 hours of use out of a pair of batteries.  We do Sunday & Wednesday services so I leave the transmitters on at the end of Wednesday services to drain the battery.

For 9V batteries I go Alkaline.  The charge time is too long supposedly due to the tiny cells and heat issues encountered with rapid charging.  With 9V, you definitely run into all the same issues brought up in the article about needing a pro charger that won’t overcharge the battery.  Just not worth it but thankfully all our wireless operates on AA’s now.

Tried using nimhs but others using the wireless mics during the week put in fresh alks and tossed the nimhs. Figure that cost in?!!!

Again, if you can charge the batteries while in the packs, the need to throw them away seems to leave.

I’m suprised you haven’t mentioned lithium batteries… think mobiles!

Current professional rechargeables are up to the task, and NiMH is a competent technology.  seo services

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