Analytic Systems IBC320, Installation & Operation Manual, Page: 9 / 24

9
AGM – ** AGM (Absorbed Glass Mat) batteries differ from flooded lead acid batteries in that
the electrolyte is held in the glass mats, as opposed to freely flooding the plates. Very thin
glass fibers are woven into a mat to increase surface area enough to hold sufficient electrolyte
on the cells for their lifetime. The fibers that compose the fine glass mat do not absorb nor are
they affected by the acidic electrolyte.
Gel – **A modern gel battery (also known as a “gel cell”) is a VRLA (Valve Regulated
Lead Acid) battery with a gelified electrolyte; the sulfuric acid is mixed with fumed silica,
which makes the resulting mass gel-like and immobile. Unlike a flooded wet-cell lead-acid
battery, these batteries do not need to be kept upright. Gel batteries reduce the electrolyte
evaporation, spillage (and subsequent corrosion problems) common to the wet-cell battery,
and boast greater resistance to extreme temperatures, shock and vibration. Chemically they
are almost the same as wet (non-sealed) batteries except that the antimony in the lead plates
is replaced by calcium, and gas recombination can take place.
Lithium Ion – ***A lithium-ion battery (sometimes Li-ion battery or LIB) is a member of a
family of rechargeable battery types in which lithium ions move from the negative electrode to
the positive electrode during discharge and back when charging. Nominal cell voltage is 3.6V
and a 12V battery consists of 4 cells in series to create 14.4V. The charging routine is Constant
Current (Bulk Charge) to Constant Voltage (Float) at 14.4 Volts.
BATTERY TYPE INDICATORS
FLOODED LEAD ACID
AC
POL
FLOODED
BAT
TYPE
GEL AGM
AC
POL
FLOODED
BAT
TYPE
GEL AGM
GEL
BLINKING
ABSORBED GLASS MAT
AC
POL
FLOODED
BAT
TYPE
GEL AGM
OTHER - DEFAULT L-ION
AC
POL
BAT
TYPE
CUSTOM