I personally charge my cells with a hobby charger which can go down to 0.1A charging rate (fine for the 10280). However, this will be still too high for the 10180. On AW's sales thread, he mentions to use a 10-20mA coin cell charger.
Search the Battery sub-forum. Lots of threads on this topic. Just generally, the 10280 is not hard to charge. But as for the 10180, check out this thread.