WH24 power supply / batteries type
Tomasz Lewicki
I would like to ask if anyone still uses the HP-1001/1002 (WS-1001/1002) station with the WH24 external sensor. I am having trouble finding the right batteries for this sensor. I know it is old equipment, but maybe someone will be able to help me.
I got the station from a friend who bought it in 2015 and didn't use it because he couldn't install it (he lives in a multi-story apartment building). I got it in 2023 and started using it in the spring of 2024. I found the original manual here -> https://fccid.io/WA5WH24B (April 2013 version). The Polish distributor's manual is from January 2014. It contains an important note that is not included in the original manual about powering the WH24 with 1.5 V ZnMn rechargeable batteries: "The outdoor sensor can only be used with the special ZnMn rechargeable batteries with a rated voltage of 1.5 V included in the set." Since I didn't have any, I used regular 1.2 V NiMH rechargeable batteries, but they quickly died during the cold spell, which is not surprising. That's why I used 1.5 V lithium batteries. They worked for almost two years, give or take a few weeks. But now I have to replace them, which brings me to my question for WH24 users - what kind of batteries should I use? There are no longer any 1.5 V ZnMn rechargeable batteries on the market, but there are NiZn batteries with a voltage of 1.6 V. Will these be suitable? Should I go for lithium batteries again? The thing is, access to the external sensor is very difficult and I can't easily replace it if something goes wrong.
