Hi all, I have been reading some horror stories on charging batteries (18650) on external charger about how you need to watch and be around the charger as batteries could blow up. Im new to charging and was ultra afraid and bought Nitecore Digi 2 charger to charge my LG HG2s. Is this charger good? Will it automatically stop charging batteries on full? Ie can i charge them overnight? The LG batteries take 6 hours to charge at 500mA..