You can use the LN-5014 charger, if you can monitor the cutoff voltage. You want to stop the charges at 3.60v/cell-3.65v, but after 3.55v/cell that voltage really starts climbing and it's easy to miss the ideal ending point.
There is a solution, though:
LipoDapter
This will cut the charge at about 3.65v-3.70v/cell (which is fine). I used one for a while on my Duratrax ICE before I modded my Astroflight 109 charger to have the proper A123 cutoff (this was before AF came out with their A123 version).
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz