The marking “CA” on an automotive battery stands for Cranking Amps, a rating that indicates the current a battery can deliver at 32 °F (0 °C) for 30 seconds while maintaining a minimum voltage of 7.2 V. It is closely related to the more common Cold Cranking Amps (CCA) rating, which is measured at –18 °C. Understanding CA helps users select a battery suited to their vehicle’s starting requirements.
The ‘H’ designation on a lithium battery typically indicates its high capacity or high energy density compared to standard variants, signifying enhanced performance for specific applications.
The abbreviation Ah stands for ampere-hour, a unit of electric charge representing the battery’s capacity to deliver current over time. It indicates how much current a battery can supply for a specific duration before it is fully discharged.
SUL on a battery charger stands for sulfation, a condition where lead sulfate crystals accumulate on battery plates, reducing capacity. Chargers with a SUL mode use pulse or high-voltage techniques to break down these crystals and restore battery performance.
The numbers on a Geek Bar typically refer to the estimated puff count, indicating the approximate number of inhalations the device provides before the e-liquid is depleted.