water sensor battery

[Mike Mozer]

I purchased 5 water sensors, expecting that they'd arrive with the tape that disengages the battery until they are ready to be used. However, all the sensors seem to be active. I was hoping to store 3 of these sensors until the batteries die on the 2 I will be using. I would have purchased only 2 had I known the others can't be stored. 

Is there any way of disengaging the batteries until I need the sensors? Will it preserve battery life if I stick them in the freezer? Any other suggestions to give me some value out of the 3 I won't be using immediately?

Thanks

[Pete]

Just open it up and remove the battery.  It's meant to be replaceable, after all.

[Mike Mozer]

Pete, the batteries in the water sensor are not replaceable.  From the web page blurb on the sensor:

By removing the piezo buzzer from the tag, we made room for a CR2450 battery which has 3x capacity than the battery used in our regular motion sensor tags. The circuit board, together with the battery have a water-proof coating. The battery will last for typically 3 to 4 years is not replaceable.

[Pete]

Oops, sorry.  My bad.

On Monday, January 30, 2017 at 10:26:44 PM UTC-8, Mike Mozer wrote:

[intelligent.co...@gmail.com]

If you are handy, you can:

1. Buy CR2450-G1A battery w/ 3-pin PCB mount, at Newark for about $1.50 each (w/ modest shipping $)

2. Desolder the existing 3-pin battery from the PCB

3. Install new battery buy soldering into PCB in exact same locations

A little bit of work, but if you buy 5, tot ~$15 w/ shipping, its $3/sensor, which beats the hell out of buying new sensors for $24 a pop.