Cannon mag 10 capacities

[Gotta Bite]

My boat came with older mag 10s that don't have auto stop and dont really handle 12lb weights very well. I'm looking to upgrade possibly this year but definitely next year. I'm looking at some used ones that are in good shape but can't seem to find out what they can handle, weight wise. I know that the brand new ones can handle up to 20lbs which I think is overboard for me. They have a smoking retrieval rate also it seems. Is there any way I can tell by a serial number or date of manufacture etc what weight they can handle? As always I appreciate the feedback.

Edited June 22, 2016 by Gotta Bite

[Bozeman Bob]

Google the make and model, specs will show up and the owners manual as well, which also list the capacities. Fish307.com also has a listing with manuals as well.