4G Wi-Fi device - battery charging

[Phil22222]

Can EE please provide a definitive explanation to what "If you intend to use your 4G WiFi whilst connected to your charger for more than 7 days, then, it is advisable that you remove the battery to avoid any potential damage'.

This reads to me that i can remove the battery and as long as the device is still plugged-in to the charger then it will still work - am I correct in my assumption please?

thanks

[Chris_B]

@Phil22222  Try it.  

  Keeping it on charge will ruin the battery.  Ie you’ll over charge it. 

[Phil22222]

Thanks Chris but can you use it without a battery connected? I.e. use off the mains supply only? 

[JimM11]

@Phil22222 Yes that assumption would be correct, some batteries do not like to be on a continuous charge and can have memory effect so when called upon to be used they do not last, not saying that this model suffers but i can be good general advice that EE are giving. Down side when power goes out, unit stops, More of a portable device so best used that way. If not cycle unit so battery gets chance to go down/up every so often.