@PeterL9 Thanks for the link to the battery test site. The graphs are very good but my German language knowledge is not good enough. I see the Li-ion battery voltage drops "off a cliff". I guess we...

@PeterL9 Hi Peter, After posting last week, I decided to buy some Li-ion batteries as I guessed I was unlikely to get a direct answer from tp-link. I bought Pujimax 3400mWh 1.5v off EBay and they...

My question relates to the smart thermostat valve not the hub but I wasn't able to enter KE100 in the Product Model box. I have found batteries with these specs - AA Battery Rechargeable USB Type-C...