You can check your Cabela's gift card balance online. Go to Cabelas.com, and scroll down to the bottom of the screen to select Gift Cards under Shopping Resources. Click under Balance Look-up, enter your gift card number and gift card code, and then click Check Balance, explains Cabela's.
The gift card number is the nine-digit number on the left side of the back of your card, just above the bar code, Cabela's states. The gift card code is the seven-digit number just to the right of the gift card number.
You can also check your balance by visiting any Cabela's retail store, or by calling the Cabela's customer service number, 1-800-237-4444, as of 2015, according to the company's website.