Many of us are using two-cell LiPo batteries for QRP rigs, e.g. single cells or Camcorder/Cellphone cells with some protection circuits. Unfortunately, all suitable charging solutions I knew of are pretty bulky. Now, when searching for a new solution, I found this product:
It seems to be a charger with balancer circuit for two LiPo cells. The charging current is 800 mA, which should be reasonably fast for most cells.
What I find extremely appealing is that it is powered by a MicroUSB connector, so you can use your iPad or other 2A USB charger and spare an extra AC adaptor.
I ordered a sample and may be able to report my experiences here.
Maybe this link is useful for others - I had been searching for something like this for ages.
73 de Martin, DK3IT