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AlphaGuard

Extends battery life
Replace single batteries, not the entire string
Spreads charge voltage equally across batteries
Compensates for battery differences as they age
Safe unattended operation designed to CSA
C22.2 No. 107.1 and UL 1778 standards
Optional Potted AlphaGuard available

AlphaGuard monitors and protects your batteries by spreading the charge voltage equally across all the batteries in the string, ensuring that every battery, whether old or new, is properly charged. With an ideal voltage always across each battery, life and runtime are optimized. Individual batteries in a string can be replaced as they fail, allowing batteries to be left in service longer. This stops the wasteful and costly practice of replacing batteries based on a scheduled maintenance programs or disposing of batteries that may have years of useful life left because one battery has failed.

General

Configuration
Quantity	One (1) AlphaGuard is required per battery string
Service Location	With the battery string

Cabling
AG-S9-Cable	AG-CMT-36/48SC Voltage Sense Cable, Single String 9’
AG-D9-Cable	AG-CMT-36/48SC Voltage Sense Cable, Two String 9’
AG-S35-Cable	AG-CMT-36/48SC Voltage Sense Cable, Single String, 35’
AG-D35-Cable	AG-CMT-36/48SC Voltage Sense Cable, Two String, 35’

Mechanical
Housing Material	High impact plastic
Dimensions (in)	1.44H x 4.82W x 4.25D
(mm)	36H x 122W x 108D
Weight (lb/kg)	0.8/.36

Electrical
Batteries	Individual 12VDC nominal batteries configured into 36 or 48VDC strings
Circuit Protection	Single blow fuse, reverse polarity protected
Environmental	-40 to 55°C (-40 to 131°F), 5 to 95% humidity
Quiescent Current Draw	1mA max. (Current consumed by AlphaGuard after low voltage total shutdown)
Charge Management	Most effective during float period of charge
Max. Current	2A @ 25°C
Quality of Final Balance	±100mV max. between any two (2) batteries
Charging Efficiency	80 to 90%
Charge Balance	±100mV typical
Low Voltage Cutoff	34.5VDC/46VDC ±5%
Communication to XM2	AlphaGuard configured DSM status monitoring card
Voltage Sense Regulation	±100mV

Document Downloads

Title	Type	Version	Date
AlphaGuard AG/CMT Installation Instructions	Manual	012-306-C0-004 Rev. D	June 1, 2006
AlphaGuard Data Sheet - Chinese (A4)	Datasheet	049-225-11-004	November 1, 2006
AlphaGuard Data Sheet - English (A4)	Datasheet	049-225-10-007	November 1, 2006
AlphaGuard Data Sheet - English (LTR)	Datasheet	049-225-10-007	November 1, 2006
AlphaGuard Data Sheet - Russian (A4)	Datasheet	049-217-10-001	November 1, 2003