BATNA is often used in negotiation tactics and should always be considered before a negotiation takes place. It is never wise to enter into a serious negotiation without knowing your BATNA. (Corporate Finance Institute)

The power of your BATNA affords you the leverage to ask for more. If you don’t get what you’re looking for, then you can turn to your best alternative. A strong BATNA is like a warm, fuzzy insurance policy. A strong alternative provides you with two possibilities. Either you reach an agreement with more favorable terms, or you simply say “no deal,” because you have a good alternative plan. (Negotiation Experts)

This type of BATNA asymmetry can occur in several varieties (e.g., no BATNA vs. strong BATNA, or deals where the incentives on each side are completely different). A negotiator’s BATNA-based power in these situations is virtually meaningless as would be any corresponding strategy based on the same. (Harvard Business Review)