New Gtech K9 Mk 2 handheld vac not holding charge

[ppppenguin]

I still think it's poor design to effectively require it to be always on trickle charge. Our phones and laptops don't need to be plugged in when not in use. I have a portable floodlight that likes to be charged every few weeks to stay happy. It has Lithium batteries so the self-discharge ought to be small but it's a cheap unit so perhaps they are not as good as some.