I've spent the last few hours playing with different values but the only thing I was able to do was change my 103 charges to 30 charges.

Would be great in someone with a bit more knowledge and experience with modifying games could create a mod that increases the number of charges on weapons when enchanting them. I'm rather sick of having to recharge weapons every 15 minutes because they have run out.

Possible flavours: 2x, 5x, 10x, 100x
A mod such as this is more of a convenience thing than a cheat, since the charges will still be used at the same rate, and the soul gems used to charge would still be the same, it would just mean you don't have to open up the inventory to recharge your weapons as often.