Top positive review
4 people found this helpful
You will understand that I don't use these but my ...
on 13 January 2016
You will understand that I don't use these but my wife does. So she reports they work well and produce quite some heat over quite a time at half power. They take a little time to recharge and it says that the max current is 1A - so be careful which charger you use. I don't use an Apple iPad charge (max 2.5A) but a 1A USB charger or a computer USB.