How can I determine if I need to replace my Bat-Caddy battery?
There is no exact measurement of capacity with a chemical battery. You can only measure voltage and then estimate capacity based on measured voltage and how it performs in use. As a reference our new Lead Acid (SLA) batteries SLA battery fully charged should range between 13.3V to 13.6 V (±0.1). Our new Lithium fully charged should range between 14.4V to 14.6V(±0.1). As the battery is used and ages this maximum voltage will decrease. If your battery is slowing down at the end of a round, or not even making 18 holes it is time to replace the battery. To confirm this, re-charge the battery, then measure the voltage if it reads well below the range of a good battery; you need a new battery. Battery testers are available on the website - Multimeter for Battery Testing