For over a year I have this phone and absolutely nothing to say. Battery always fully loaded and conversation
several hours without a problem.
By cons I do not advise Siemens cheaper because they too have the same battery problem that discharge quickly.
Follow meticulously recharge the batteries the first time. Ie load at full power.
Allow to completely discharge handsets by not putting them on their base. Please do not use the phone.
The batteries are flat after 3 days. Then recharge to full power. And then finally the phones are ready!