Other then the clone of the CGP-D28 advertsied here, what other on-board batts are available from 3rd party sources? Are there any that have chargers to take 2 or more and include a quick charge feature and/or a conditioning cycle?
FYI, the fastest *any* Li-Ion battery can be charged is about 2.5 h. It has something to do with its chemistry, not charger design. So do not look for a "quick" charger, it can not be done (not quicker than 2.5H).
Li-Ion batteries do not use conditioning. Some higher end ones (Anton Bauer) use periodic "re-cal" to maintain the fuel gauge accuracy, but it does not have anything to do with the battery performance, only fuel gauge accuracy.
Hth
Alex