2/3 A size 1.2 V, 1600 mAh rechargeable NiMH batteries are 17mm in diameter and 28mm long. Three of them stacked would be 84mm long and produce 3.6 volts. Would I be right to assume I could use these batteries in this mod since the max supported battery length is 105.8mm. Would the tubes adjust to snuggly fit the batteries? Do you think this type of battery would work well for vaping? I would rather not use lithium ion batteries. I am relatively new to vaping.