The “heart” of your rechargeable system is the battery charger(s.) All the chargers listed here are designed for pro-audio use. They individually monitor each cell and switch to trickle charge when the battery is done charging to keep them topped off, ready for use. Some of them have a refresh/reconditioning function to increase the life of your batteries. All the chargers can be used for either low discharge or high-capacity cells, and some are combination chargers that will accommodate AA, AAA, and 9V cells.
To choose the correct charger(s), simply calculate the total number of wireless mics, in-ear-monitors, and other devices and how many of each battery size and type you require. Once you have the total number of AA, AAA, and 9V cells, you can simply pick the charger or chargers that will accommodate your requirements.
If you desire the batteries to be stored in a rack, our rackmount chargers are very convenient, and charge from 12 to 44 AA's / AAA’s at a time. Our desktop chargers can accommodate up to 12 AA’s and 10 9V’s. It’s not necessary to have two complete sets of batteries for each device, but we do recommend a few spare sets in case you need to swap out batteries in a hurry.
Charging times are between 2 and 5 hours, depending on the cell and charging current of the charger and if the cell is completely drained. Most of the time you will not completely drain the cells, so charge time is reduced by about 50%.
Reconditioning the cells is optional, but it will extend life cycles by about 20%. Chargers that have an automatic refresh or reconditioning function include the Energy 16 Plus, Energy 4, Comfort Series, and Fischer Amps rackmount chargers.
Regardless of which charger you choose, you can be assured the charger will completely charge and maintain your cells individually. This is critical to the success of utilizing rechargeables. Consumer grade chargers typically charge batteries in “pairs” without individual monitoring. Ansmann and Fischer Amps chargers eliminate the guesswork of whether the cell is completely charged – so there are no surprises.
As with any mission critical application (such as live sound) there is no room for error or compromise.
** Remember, you’re about to save hundreds to thousands of dollars every year for the next several years. It makes no sense to skimp on a good charger or buy cheap batteries to save a few dollars . . . and be disappointed with your results.