Here is a link to the packs I bought; it seems some people havent had any issues, but as you read through the sellers feedback... I dunno what to think. I just finished charging them up a few hours ago- the packs arrived with about 3.7v per cell in them, and my lovely new BC6 charger did a grand job of charging & balancing them to 4.2v per cell in about 45minutes- stone cold almost so no bad cells or anything else going on thankfully. I have also just finished making my series connector (for the Nimhs) and parallel connectors (for the lipos); all being well I will be able to do a test run in the carpark tomorrow, see how they perform and such.