Estimate how long a battery will last under a specific load. Essential for sizing backup power for UPS systems, off-grid solar, and portable electronics.
Ideally no. Lead-acid batteries shouldn't go below 50%, and Lithium-ion typically shouldn't go below 20% to maximize lifespan.
The Peukert Effect means batteries have less effective capacity when drained quickly (high amperage) compared to slow drainage.
Use 50% for Lead Acid life.