On my Quad Copter I have a 5400mAh Li-Po battery (3S 11.1V) and its charger charges at 0.5 C since it takes 2 hours to charge the battery.
That charger has broken down, I have ordered a replacement which will arrive in a few days, however I do have some other chargers that can charge at different rates.
There is one specific charger that only provides 1 Amp which is almost 1/3rd of the usual charge rate those batteries have been witnessing.
All I want to know is whether it is safe to charge a battery with less current than its regular cycle?
At 1 Amp it will take 5.4 hours to charge that battery. It is a balance charger like the existing one so balancing is not an issue. I'm fine with 5.4 hours I just don't want to ruin the battery.