I just purchased a rather expensive toy and it uses 4 Acebeam high-drain (20A) 3,100mAh protected lithium-ion rechargeable batteries and i have no clue about a charger. I have been reading all the reviews on here and i have just confused myself back to my original nitecore charger choice. I only have those 4 batteries to work with so i don't need a high dollar charger just one that others are happy with using. 1 or 2 simple recommendations if possible would be greatly appreciated.