How many spells and charges should an uncommon magic item have?

2 1st level spells and 1 2nd level spell with 7-10 charges?

Uncommon items only get cantrips and 1st-level spells, items with 2nd- & 3rd-level spells are Rare. Uncommon items usually have no more than 1-3 charges. An item such as you describe (2 1st-level spells, 1 2nd-level spell, and 7-10 charges) would be a Rare item.

Quote from IamSposta >>

Uncommon items only get cantrips and 1st-level spells, items with 2nd- & 3rd-level spells are Rare. Uncommon items usually have no more than 1-3 charges. An item such as you describe (2 1st-level spells, 1 2nd-level spell, and 7-10 charges) would be a Rare item.

 Thought uncommon can have 3rd level and below. 

You’re right, my mistake. For some reason I was thinking Common, not Uncommon. My bad. But still, look at a wand of fireballs, or a wand of lightning bolts, they each have a single 3rd-level spell and 7 charges and they’re Rare. I find it better to go by the comps than by the workshop when it comes to magic items. Look at the Uncommon magic items and you’ll see they have very low level spells (if any) and very few charges (if any). What spells were you thinking of attaching?

Quote from IamSposta >>

You’re right, my mistake. For some reason I was thinking Common, not Uncommon. My bad. But still, look at a wand of fireballs, or a wand of lightning bolts, they each have a single 3rd-level spell and 7 charges and they’re Rare. I find it better to go by the comps than by the workshop when it comes to magic items. Look at the Uncommon magic items and you’ll see they have very low level spells (if any) and very few charges (if any). What spells were you thinking of attaching?

 Comprehend Language, Illusory Script, Borrowed Knowledge. 

You should be fine then. I still wouldn’t give it too many charges though.