Are there any good small 5v mods that will use the v4l carts?
For 5 volts theres not much in the way of actually small. Several 3.7 volt mods with LR cartos can simulate 5v or you can get some 6v mods fairly small. The main reason is 5 volts is only achievable with a few round about methods requiring more space. There are no true 5v batts to my knowledge.
