Battery Tech Terminology
Flooded (Batteries)
Also known as conventional batteries, are the oldest form of automotive batteries. These batteries contain electrolyte that is free to move around. These batteries must be mounted upright.
EFB (Enhanced Flooded Battery)
These are flooded batteries with enhanced cycling abilities and improved charge acceptance. Designed as an entry level battery for cars with start/stop technology with the ability to handle heavy duty electrical requirements.
AGM (Absorbed Glass Mat)
This is when the electrolyte is absorbed into the glass mats like a sponge and is not free flowing. For this reason they are a safer option, can be side mounted and have enhanced starting and cycling abilities vs conventional flooded batteries required for cars with advanced start-stop technology.
CCA (Cold Cranking Amps)
This is a measurement test representing the number of amps that a fully charged battery can produce. This is a measurement of a batteries maximum ability to start an engine however does not represent battery quality or longevity.
RC (Reserve Capacity)
This refers to an approximate time that the battery will run a vehicle with a night time electrical load should the vehicle charging system fail. This rating is the time in minutes that a new fully charged battery can supply a current of 25 Amps before it goes flat.
Ah C20 (Ampere Hours)
This is an indication of how much energy is stored in the battery. Ah C20 rating is a unit of capacity, which tells you how much energy a battery can deliver over 20 hours at 25ºC without falling below 10.5V for a 12V battery.