The Honeywell 5834-2 battery can last up to 5 Years. 5800 Series transmitters draw quick bursts of current during transmission, then sit idle with very nominal current draw. Most batteries are not designed for this type of use, therefore only batteries 'LISTED' as compatible in the Installation Instructions of the transmitter should be used if the expected battery life is to be attained. When other 'non-approved' batteries are used the 'quick bursts' of current draw kill the battery cells prematurely, and they usually will go low in a matter of months.

The Honeywell 5834-2 wireless key fob uses 3V, 210mAh, Maxell CR2032 or Duracell DL2032 battery's.

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Honeywell 5834-2 Frequently Asked Questions