[hornychz]

Are you sure that LiFePo batteries are suitable to be used with conventional solar chargers? I think solar systems are more suitable for Pb batteries.

Yes,

I'm definitely sure about using them in meteo stations, but not with cheep conventional solar chargers.

Their application range is much greater then Pb batteries (-30°C to +70°C) and service life > 10 years. After 8000 cycles they have still more then 80% capacity. They are much lighter (maybe to 1/3) and smaller then Pb batteries ... Their main advantage is that they have the same voltage as Pb and so will not change anything on the appliance or on the side of the solar panels.

But - they are still too expensive and need more expensive solar charger, for example:
12/24V solar charger
It costs about USD 40.

And LiFePo4 battery pack 12V/12Ah PCM costs about USD 100, for example:
LiFePo4 battery pack

I'm not using the LiFePo battery yet, but this year I want to implement them into my new TX box (bigger then the old one), because their capacity during the winter time in CZ (cold and without sun).

Best Regards